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.