ok.
this will be my last post :)
i will SO (not) miss you, my beloved srp!!!!!!!
mwah mwah for all the memories XD
luv b
Wednesday, June 16, 2010
Sunday, June 13, 2010
Here's a pic of the right side up plants in a random ice cream bucket (they werent grown like this, i just put them there to carry them up to the balcony- it would be unfair if they were grown in the bucket coz it's white). This was taken on the 6th June (sorry, i only got most of the photos off the camera today)
I also forgot to mention something important:
In the 4th week of the experiment (between 6th and 13 of June, 3 of 4 of the right side up plants became root bound.
http://davesgarden.com/guides/terms/go/751/
This basically means that the roots have no more room to grow so they start to build up at the bottom and get tangled and stuff, and this affects their growth. I have a pic :)
The same amount of soil (and same type) was put in each of the bottles (except for the smaller ones- less was put in, but the same amount in the right side up and upside down plants), and since the bottles are clear, you can see some of the root growth. The upside down plants' roots aren't even halfway up the soil thing, which I can use to support GEOTROPISM.
Here is a general definition:
http://www.merriam-webster.com/dictionary/geotropism
Now, when talking about geotropism in plants, i found this a more useful site:
http://www.biology-online.org/3/5_plant_hormones.htm
Anyways, it basically means that plant roots will try to grow as best they can DOWN, and the shoots and stems etc, UP, like a normal plant, even if they are turned upside down.
This is supported by my experiment, because while the roots of the right side up plant have become root bound and run out of space, there is plenty of space that the roots havent used in the upside down bottles. This is because they want to grow downwards like a normal plant, due to its response to gravity.
The actual plant itself has been growing upwards, with it bending back up towards the sky. However, this could also be a result of it growing in the direction of light. (Phototropism)
Btw, tropism means
'the movement of a plant in response to a stimulus (an external force)'
http://www.enotes.com/science-fact-finder/plant-world/what-tropism
So you can kinda get why phototropism and geotropism sound a little alike.
ANYWAY, i will now add more pics, including rootbound-ness!!!!!
I hate it how when you upload an image, it goes to the top of the post :(
wait- does it? watever. i think it does.
ok, this is a pic of the RIGHT SIDE UP ones.i forgot to say:
the larger bottles have a diameter of approx. 8.5cm and 6cm for the smaller ones. The diameters are the same for both the upside down and right side up ones. I just thought this would be useful coz i mentioned more debris in the right side up ones. I'll upload some pics of the inside (birds eye view) of the plant so you can see the grass growing and stuff.
Anyway, in case you're wondering, the pic was taken on my blacony and not where they were positioned for most of the experiment. I just brought them up so i could measure them and take pics and stuff.
I think i mentioned before, peas like plenty of sun, esp morning sun, so thats where i positioned all my plants.
This shows grasses and stuff growing out of an upside down plant.
This shows grasses and stuff growing out of a right side up plant (please note that the big blurry green thing on the left is the actual pea plant- not a weed :). There arent many grasses and weed and stuff in the right side up ones)I've also noticed that some of the upright plants have holes in the leaves and yukky debris and stuff in them. Once i found a cricket in one of the bottles, so in my discussion, I'll probably include how growing plants upside reduces risks associated with pests.
I don't know if its coincidental or whatever, but the upside down ones seem to have more grasses and stuff growing out of the top, compared to the ones right side up. It could be coincidental, since i used a mixture of half compost, half organic potting mix. Seeds could have also been distributed through wind or birds or whatever and the upside down plants have a clearer opening, with no plant in the way.
will include a picture of my plants in the next post
oh yeh- and for the table below, the heights are in cm's, measured with a plastic ruler (the same one used each time) and a measuring tape for when the upside down ones started curving up.
Wednesday, May 19, 2010
i actually made 4 upside down ones, and 4 right side up plants,
with 2 big bottles and 2 lil bottles.
one of the ones in the lil bottle died.
it's been raining heavily, and i've been quite protective.
i keep moving them into the garage for the night, but my mum says they should be fine and won't get flooded coz they have drainage holes.
ah wellies.
i should stop doin that then... coz i forget to put them back out in the morning, so they dont get sun. I did this for one day, and my mum put them out today.
okiesssss, bye
with 2 big bottles and 2 lil bottles.
one of the ones in the lil bottle died.
it's been raining heavily, and i've been quite protective.
i keep moving them into the garage for the night, but my mum says they should be fine and won't get flooded coz they have drainage holes.
ah wellies.
i should stop doin that then... coz i forget to put them back out in the morning, so they dont get sun. I did this for one day, and my mum put them out today.
okiesssss, bye
Saturday, May 15, 2010
Wednesday, May 12, 2010
here's a model of what cutting off the 'rocket bottom' was. You can't really see the opening (on the left), but there is one there.
I'll take better pics when i'm doing the real experiment (which i have to start!!!!!!)
I already tried putting soil in it, for some reason...
oh yeah, to see if the soil would fall out of the hole.
it didn't, but even if it did, i don't think it'd fall out in the real experiment because the plant would have taken up most of the room.
going to study for test now- haven't started.
BYEE!
METHOD
Materials needed: soil, 4 empty soft drink bottles of the same colour, sharp cutting scissors, 4 seedlings (all should be at the same stage of growth development), hammer and nail, 2 long thin ropes or strong string (should be strong enought to support the weight of the hanging plant)
METHOD
1. Gather all equipment
2. Take all wrappings and lids of the bottles.
3. Cut the top off one of the bottles, using the scissors.
4. Using the hammer and nail, make 3 drainage holes at the bottom of the bottle.
5. Fill one quarter of the bottle with soil.
6. Carefully place one of the seedlings in the soft drink bottle.
7. Fill the remainder of the bottle with soil.
8. Repeat steps 3-5 with another bottle and seedling.
9. Place the plants in an area that gets at least 6 hours of sunlight a day, preferably morning sunlight.
10. Using the nail and hammer, make two small holes in the sides of another bottle. The holes should be 7-10 cm from the end of the bottle, should be on opposite sides of the bottle, and should be large enough for the rope/string to fit through it.
11. Cut the bottom off the bottle, so that the 'rocket bottom' (lumps on the bottom) are cut off, and the wide opening is circular. This opening will be used for planting the seedling, adding soil, and watering.
12. Thread the thin rope/ strong string through the holes.
13. Tie the ends of the roipe together and hang the bottle at the same place as the other bottles with plants in them. The opening of the neck of the bottle should be facing downwards.
14. Carefully place another seedling in the hanging bottle, with the shoot going through the smaller opening, and the roots pointing up.
15. Fill the remainder of the bottle with soil.
16. Repeat steps 8-13 with the remaining seeling and bottle.
17. Water all plants, ensuring they each get an equal amount of water.
18. Regularly water the plants, making sure they all get an equal amount of water.
19. Record all observations of each of the plants and repeat after each week. These should include the height of the plants, growth direction, any changes to the colour, shape or size of the plants, and growth speed.
METHOD
1. Gather all equipment
2. Take all wrappings and lids of the bottles.
3. Cut the top off one of the bottles, using the scissors.
4. Using the hammer and nail, make 3 drainage holes at the bottom of the bottle.
5. Fill one quarter of the bottle with soil.
6. Carefully place one of the seedlings in the soft drink bottle.
7. Fill the remainder of the bottle with soil.
8. Repeat steps 3-5 with another bottle and seedling.
9. Place the plants in an area that gets at least 6 hours of sunlight a day, preferably morning sunlight.
10. Using the nail and hammer, make two small holes in the sides of another bottle. The holes should be 7-10 cm from the end of the bottle, should be on opposite sides of the bottle, and should be large enough for the rope/string to fit through it.
11. Cut the bottom off the bottle, so that the 'rocket bottom' (lumps on the bottom) are cut off, and the wide opening is circular. This opening will be used for planting the seedling, adding soil, and watering.
12. Thread the thin rope/ strong string through the holes.
13. Tie the ends of the roipe together and hang the bottle at the same place as the other bottles with plants in them. The opening of the neck of the bottle should be facing downwards.
14. Carefully place another seedling in the hanging bottle, with the shoot going through the smaller opening, and the roots pointing up.
15. Fill the remainder of the bottle with soil.
16. Repeat steps 8-13 with the remaining seeling and bottle.
17. Water all plants, ensuring they each get an equal amount of water.
18. Regularly water the plants, making sure they all get an equal amount of water.
19. Record all observations of each of the plants and repeat after each week. These should include the height of the plants, growth direction, any changes to the colour, shape or size of the plants, and growth speed.
OMGGGGG!
i am so stupid!!!
all this time, i've been thinking,
'ah, i have like, 3 weeks to watch plants grow from seeds'
but i looked up some sites that showed how to grow plants upside down, and NONE of the grew their plants from seeds! They're all just seedlings, or young plants.
WHY DIDN"T THIS OCCUR TO ME BEFORE?
ah well, it'll be easier now.
i am so stupid!!!
all this time, i've been thinking,
'ah, i have like, 3 weeks to watch plants grow from seeds'
but i looked up some sites that showed how to grow plants upside down, and NONE of the grew their plants from seeds! They're all just seedlings, or young plants.
WHY DIDN"T THIS OCCUR TO ME BEFORE?
ah well, it'll be easier now.
Monday, May 10, 2010
PEAS!!!!
ok, I've decided, that since tomato isn't in season, I'll use peas, which ARE in season! "The pea is a green, pod-shaped vegetable, widely grown as a cool season vegetable crop. The seeds may be planted as soon as the soil temperature reaches 10 °C (50 °F), with the plants growing best at temperatures of 13 to 18 °C (55 to 64 °F). They do not thrive in the summer heat of warmer temperate and lowland tropical climates but do grow well in cooler high altitude tropical areas. Many cultivars reach maturity about 60 days after planting. Generally, peas are to be grown outdoors during the winter, not in greenhouses. Peas grow best in slightly acidic, well-drained soils." http://en.wikipedia.org/wiki/Pea
Slightly acidic, well-drained soils I have, because I'm planning to use my compost which doubles up as a toilet for my rabbit, so I think that's ok :) I'll just do common pea. Image shown above.
Wednesday, March 24, 2010
ok...
i think i'll be planting the plants in not pots, but... soft drink bottles- the big ones.
i got the idea off this site:
http://www.cheapvegetablegardener.com/2009/04/make-your-own-upside-down-tomato.html
and also, nearly all the results that come up on google when i type in something along the lines of 'upside down plant growing', are tomato related, so i'll research a bit more about tomatoes to see if it's a good candidate for my experiment.
things to consider:
- season it grows best in- im sure there's a proper word for this...
- how long it will take to grow
- a bit more bout how roots and leaves and stuff are meant to look like to compare it to both my plants (upside down and right side up)
i think i'll be planting the plants in not pots, but... soft drink bottles- the big ones.
i got the idea off this site:
http://www.cheapvegetablegardener.com/2009/04/make-your-own-upside-down-tomato.html
and also, nearly all the results that come up on google when i type in something along the lines of 'upside down plant growing', are tomato related, so i'll research a bit more about tomatoes to see if it's a good candidate for my experiment.
things to consider:
- season it grows best in- im sure there's a proper word for this...
- how long it will take to grow
- a bit more bout how roots and leaves and stuff are meant to look like to compare it to both my plants (upside down and right side up)
Monday, March 22, 2010
ok, i wanna be a good girl and keep my blog SLIGHTLY updated- better than nothing, right?
anyway, i researched a bit about growing plants upside down and i didnt get very scientific results... i wasnt exactly expecting to, but whatever.
ok, a lot of gardening stuff came up, and apparently updide down plant growing is good especially for fruit, for a number of reasons, including:
1. its useful for when you water the plants (i dont even know why this is a reason- u dont have to bend for a hose)
2. the fruit such as tomatoes dont touch the floor when they are big.
3. its harder for pests to get to it (not sure about this one)
4. weeds (this too)
damn. now that ive finally put it all 2gether, and expressed my opinions, i now have to research even more!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
hate srp (will b my new signature- how great is that?!)
anyway, i researched a bit about growing plants upside down and i didnt get very scientific results... i wasnt exactly expecting to, but whatever.
ok, a lot of gardening stuff came up, and apparently updide down plant growing is good especially for fruit, for a number of reasons, including:
1. its useful for when you water the plants (i dont even know why this is a reason- u dont have to bend for a hose)
2. the fruit such as tomatoes dont touch the floor when they are big.
3. its harder for pests to get to it (not sure about this one)
4. weeds (this too)
damn. now that ive finally put it all 2gether, and expressed my opinions, i now have to research even more!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
hate srp (will b my new signature- how great is that?!)
Wednesday, March 10, 2010
THIS IS THE BLOG ENTRY.
ok... i've finally chosen to do 'the effect gravity has on plant roots and plant growth'. wow- it sounds so pro when i give it a proper name. i chose it because it's probably the most 'long-term' out of my final choices.
ok- this is how my thing will be done: (btw, this is only a summarised- completely accurate version of my method to come)
1. finding a plant that will grow efficiently, and isn't too weird. common's ok, maybe a simple flower. not something TOO heavy, like a cucumber tree (is there such thing?) as all the cucumbers will weigh my luverly plant down, destroying all my observations of roots, other leaves etc, thus destroying my experiment.
2. reading the weather forecast to find a good time to plant my luverly seeds- i dont want it to flash flood in my luverly soil and destroy my experiment.
3. looking after (monitoring XD) all my luverly variables:
controlled: same type of plant- seeds, how many of them, same type of soil, position in graden (how much shade/sunlight recieved), how much water received, at what stage in the plant's development i turn the plant upside down
independent: turning plant/s upside down, leaving other plant/s standing upright.
dependent: how the plant roots, leaves, and any other part of the plant will be effected by gravity (the turning upside down of the plant. Is there a better way to say turning upside down of?)
failing to control variables will result in the destruction of my experiment!!!
4. learn how to re-pot plants- i MIGHT have to do it when turning it upside down. either that or growing it in a upside down turnable? pot in the first place.
5. After a certain period of time, i will observe any changes to both plants and also any differences in the two plants. I will the RECORD RESULTS. If I don't do these steps, my experiment will be destroyed!!!
ok... my mum's threatening to turn off the internet now. i have to hurry and learn how do a print screen- that may take a while. technology hates me. too bad i love it.
ok... i've finally chosen to do 'the effect gravity has on plant roots and plant growth'. wow- it sounds so pro when i give it a proper name. i chose it because it's probably the most 'long-term' out of my final choices.
ok- this is how my thing will be done: (btw, this is only a summarised- completely accurate version of my method to come)
1. finding a plant that will grow efficiently, and isn't too weird. common's ok, maybe a simple flower. not something TOO heavy, like a cucumber tree (is there such thing?) as all the cucumbers will weigh my luverly plant down, destroying all my observations of roots, other leaves etc, thus destroying my experiment.
2. reading the weather forecast to find a good time to plant my luverly seeds- i dont want it to flash flood in my luverly soil and destroy my experiment.
3. looking after (monitoring XD) all my luverly variables:
controlled: same type of plant- seeds, how many of them, same type of soil, position in graden (how much shade/sunlight recieved), how much water received, at what stage in the plant's development i turn the plant upside down
independent: turning plant/s upside down, leaving other plant/s standing upright.
dependent: how the plant roots, leaves, and any other part of the plant will be effected by gravity (the turning upside down of the plant. Is there a better way to say turning upside down of?)
failing to control variables will result in the destruction of my experiment!!!
4. learn how to re-pot plants- i MIGHT have to do it when turning it upside down. either that or growing it in a upside down turnable? pot in the first place.
5. After a certain period of time, i will observe any changes to both plants and also any differences in the two plants. I will the RECORD RESULTS. If I don't do these steps, my experiment will be destroyed!!!
ok... my mum's threatening to turn off the internet now. i have to hurry and learn how do a print screen- that may take a while. technology hates me. too bad i love it.
ok...
cancelled out some more possible options (see below), and am now left with these:
- gravity-plant-upside down-thing
- egg-buoyancy-density-water-add-salt-vinegar-etc
- effect-heat-on-rubber
which one?!!!!!!!!!
ok: this is the conversation leading up to me cancelling out the option for observing-heartrate-boy-girl one:
me: i don't really think it'll work
mum: yeah, but you dont have to do your own age group, you can do sasa's (my sister,5) and nana's (my boy cousin, 7?) age group.
me: but little kids arent good for experiment. they never have a resting heartrate!!!!
mum: well, thats true!
me: well, i could do old, people, like you...
mum *offended*
mum: that's it, im not taking part.
lovely. i now have no candidates for that experiment. thank you shirley zhao for suggesting i make a brochure for guys to volunteer- but i would sound super desperate :(
cancelled out some more possible options (see below), and am now left with these:
- gravity-plant-upside down-thing
- egg-buoyancy-density-water-add-salt-vinegar-etc
- effect-heat-on-rubber
which one?!!!!!!!!!
ok: this is the conversation leading up to me cancelling out the option for observing-heartrate-boy-girl one:
me: i don't really think it'll work
mum: yeah, but you dont have to do your own age group, you can do sasa's (my sister,5) and nana's (my boy cousin, 7?) age group.
me: but little kids arent good for experiment. they never have a resting heartrate!!!!
mum: well, thats true!
me: well, i could do old, people, like you...
mum *offended*
mum: that's it, im not taking part.
lovely. i now have no candidates for that experiment. thank you shirley zhao for suggesting i make a brochure for guys to volunteer- but i would sound super desperate :(
Omg! soo stressed- cant decide which one to choose!!! i'm allowed to change my idea even after i submit the first blog, rite? as long as i let miss (hi ms zhang!) know? ok...
i cant decide between:
1. the effect gravity has on plant roots. This will be done by turning the plant upside down at a certain stage (early, but not too early) of its development.
2. Observing egg buoyancy in different densities of water by adding salt etc.
3. Observing heart rates of boys and girls (in same age group) to find out if there is a difference.
4. The effect heat has on rubber bands of different densities and original elasticities- see choices for methods below)
5. How well soil with different salinity levels conduct electricity, by adding table salt and using something metal a certain distance apart in the soil to measure how well it conducts. (this one sounds kind of hard)
Well, there are my final choices- i haven't exactly narrowed them down a lot, have i? anyway, the independent and dependent variables are listed under each heading below.
i cant decide between:
1. the effect gravity has on plant roots. This will be done by turning the plant upside down at a certain stage (early, but not too early) of its development.
2. Observing egg buoyancy in different densities of water by adding salt etc.
3. Observing heart rates of boys and girls (in same age group) to find out if there is a difference.
4. The effect heat has on rubber bands of different densities and original elasticities- see choices for methods below)
5. How well soil with different salinity levels conduct electricity, by adding table salt and using something metal a certain distance apart in the soil to measure how well it conducts. (this one sounds kind of hard)
Well, there are my final choices- i haven't exactly narrowed them down a lot, have i? anyway, the independent and dependent variables are listed under each heading below.
ok...
i didnt find that egg one from yesterday, but i think one's pretty good:
-using eggs to observe the effect coke, vinegar, orange juice etc has on teeth. apparantly teeth and eggshells have the same calcium salts, and the effect acids have on them are similar.
controlled variables: amount of liquid in each, same container, the same amount of time, same type(size, weight) of egg.
independent: the kind of substance the egg will sit in.
dependent: the effect it has on the egg.
i didnt find that egg one from yesterday, but i think one's pretty good:
-using eggs to observe the effect coke, vinegar, orange juice etc has on teeth. apparantly teeth and eggshells have the same calcium salts, and the effect acids have on them are similar.
controlled variables: amount of liquid in each, same container, the same amount of time, same type(size, weight) of egg.
independent: the kind of substance the egg will sit in.
dependent: the effect it has on the egg.
ok, some more ok-ish ideas:
1. investigating heart rate (resting) in girls and boys of similar age group.
independant variable: girl or boy
dependant variable: difference in the heart rates
this experiment will be fun and is a good one to do, but i have a limited access to guys!!! how sad is that?!!! i cant exactly go up to randoms on the bus (pauline, shirley :P) and ask to test their heart rate. it wont exactly be resting anyways, will it?
2. testing the effect of heat on rubber. I think i can do this by testing the elasticity of different kinds of rubber bands, before and after they have been heated. I'm not sure how i'll do this, but i' have 2 options:
a) attaching band to something sturdy e.g. a hook on a wall/dooorknob that wont move, then stretching it till it breaks, measuring the elasticity by working out how far back i had to pull the rubber band for it to break.
independent: whether the band is heated or not
dependent: how far back (how much it stretches) it takes for the band to break.
b) using a sort of weight and seeing how much it contracts/stretches when heated, probably with a hairdryer (cant think of anything else to safely heat it with without removing it)
3. finding the best place on your body to test your heart rate- pulse. i have a stetheoscope my dad might let me use :) let me ask...ok, he said i can use the crappy one. i dont think i'll do this idea. i kind of already know the answer and i dont think itll work out.
independent: parts of body i will test pulse on.
dependent: how well i can feel pulse on different parts of body
4. testing how well soil conducts electricity and whether increased salinity changes this.
independent variable: salinity in soil, just using table salt.
dependent: how well soil with different salinity levels conducts electricity
5. i found another fairly good egg one yesterday, after i shut down this computer and did a bit more research on the lenovo. cant remember what it was...
1. investigating heart rate (resting) in girls and boys of similar age group.
independant variable: girl or boy
dependant variable: difference in the heart rates
this experiment will be fun and is a good one to do, but i have a limited access to guys!!! how sad is that?!!! i cant exactly go up to randoms on the bus (pauline, shirley :P) and ask to test their heart rate. it wont exactly be resting anyways, will it?
2. testing the effect of heat on rubber. I think i can do this by testing the elasticity of different kinds of rubber bands, before and after they have been heated. I'm not sure how i'll do this, but i' have 2 options:
a) attaching band to something sturdy e.g. a hook on a wall/dooorknob that wont move, then stretching it till it breaks, measuring the elasticity by working out how far back i had to pull the rubber band for it to break.
independent: whether the band is heated or not
dependent: how far back (how much it stretches) it takes for the band to break.
b) using a sort of weight and seeing how much it contracts/stretches when heated, probably with a hairdryer (cant think of anything else to safely heat it with without removing it)
3. finding the best place on your body to test your heart rate- pulse. i have a stetheoscope my dad might let me use :) let me ask...ok, he said i can use the crappy one. i dont think i'll do this idea. i kind of already know the answer and i dont think itll work out.
independent: parts of body i will test pulse on.
dependent: how well i can feel pulse on different parts of body
4. testing how well soil conducts electricity and whether increased salinity changes this.
independent variable: salinity in soil, just using table salt.
dependent: how well soil with different salinity levels conducts electricity
5. i found another fairly good egg one yesterday, after i shut down this computer and did a bit more research on the lenovo. cant remember what it was...
Tuesday, March 9, 2010
OMG. i just realised, that we need to do all that independent/dependant variable thing for our ideas, so here they are:
plant root thingo:
independent variable: the turning upside down of plants at a certain stage- what time in its puny plant life, or not so puny.., the amount of seeds used to grow, type of plant used
dependent: how the plant will grow- roots spreading outward, smaller than usual, any effects on plant
umm, what else did i suggest? oh the egg thing
i think i already did them though...
meh, cant be bothered checking if i did, so just in case:
independent: how much water, what size and type of egg, how much salt and other substances used, same glass/container
dependent: how much the egg will float/sink.
k, next is the hand ice one:
controlled: how much ice, freezer temperature, how much water, same bowl/container used each time, similar weather conditions, same shoelaces tied,
independent: what type of substace used to put my hand in each time, when to take my hand out, and more will come when i perfect this experiment if i actually do it.
dependent: how well the substance will insulate the heat, altering (or not) the ability to perform tasks such as tying shoelaces, and how long it will take to regain feeling (if lost)
ok, i seriously cant be bothered to do the taste/colour one, coz
1. i need to think, and my brain hurts
2. it's WAY past my bedtime- we have a science test 2morrow
3. im probably not going to do the experiment anyhow coz all the people i noe who are available for subjects all eat food that have wonkitated colours already- e.g. my whole family eats artificially flavoured aldi iceblocks that are electric blue, hot pink and highlighter yellow.
so... yeh
thats all for today
will come up with other (hopefully better) ideas later.
plant root thingo:
independent variable: the turning upside down of plants at a certain stage- what time in its puny plant life, or not so puny.., the amount of seeds used to grow, type of plant used
dependent: how the plant will grow- roots spreading outward, smaller than usual, any effects on plant
umm, what else did i suggest? oh the egg thing
i think i already did them though...
meh, cant be bothered checking if i did, so just in case:
independent: how much water, what size and type of egg, how much salt and other substances used, same glass/container
dependent: how much the egg will float/sink.
k, next is the hand ice one:
controlled: how much ice, freezer temperature, how much water, same bowl/container used each time, similar weather conditions, same shoelaces tied,
independent: what type of substace used to put my hand in each time, when to take my hand out, and more will come when i perfect this experiment if i actually do it.
dependent: how well the substance will insulate the heat, altering (or not) the ability to perform tasks such as tying shoelaces, and how long it will take to regain feeling (if lost)
ok, i seriously cant be bothered to do the taste/colour one, coz
1. i need to think, and my brain hurts
2. it's WAY past my bedtime- we have a science test 2morrow
3. im probably not going to do the experiment anyhow coz all the people i noe who are available for subjects all eat food that have wonkitated colours already- e.g. my whole family eats artificially flavoured aldi iceblocks that are electric blue, hot pink and highlighter yellow.
so... yeh
thats all for today
will come up with other (hopefully better) ideas later.
Sunday, March 7, 2010
i LOOVE this site:
hope it helps!
http://www.scienceproject.com/projects/index/Senior/biology.asp
and this:
all-science-fair-projects.com/category40.html
and this:
all-science-fair-projects.com/category40.html
hope it helps!
anyway, i found an EGG site:
http://www.scienceproject.com/projects/intro/elementary/EP003.asp
yeh... i might do that
it's like, making an egg float by changing the water density.
yay! on the site it said something about it only taking a couple of days
but im gunna be a good science kid and have lots of variables :)
so ill change egg size, amount of water, all that stuff and see if it makes a difference.
im not entirely sure im gunna do this experiment though.
http://www.scienceproject.com/projects/intro/elementary/EP003.asp
yeh... i might do that
it's like, making an egg float by changing the water density.
yay! on the site it said something about it only taking a couple of days
but im gunna be a good science kid and have lots of variables :)
so ill change egg size, amount of water, all that stuff and see if it makes a difference.
im not entirely sure im gunna do this experiment though.
OMGG! I've been looking up so many science experiment thingo's...
i had a few options:
1. observe the effect of gravity on plant roots by growing it upside down
2. see human reactions to weird colour/taste combinations
3. see which kind of material insulates heat the best by putting your hand in ice water with different things over it e.g. rubber glove, cotton glove, cling wrap etc...
i havent decided yet. i can see flaws in each experiment, so im not sure...
im still looking.
there are soo many sites dedicated to science experiments for kids. gawsh...
the csiro website was pretty helpful, and gave me some other ideas, but theyre not really long term or appropriate.
maybe something with eggs?
i had a few options:
1. observe the effect of gravity on plant roots by growing it upside down
2. see human reactions to weird colour/taste combinations
3. see which kind of material insulates heat the best by putting your hand in ice water with different things over it e.g. rubber glove, cotton glove, cling wrap etc...
i havent decided yet. i can see flaws in each experiment, so im not sure...
im still looking.
there are soo many sites dedicated to science experiments for kids. gawsh...
the csiro website was pretty helpful, and gave me some other ideas, but theyre not really long term or appropriate.
maybe something with eggs?
Saturday, February 6, 2010
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