Materials:
- At least twenty mung bean seeds
- Two clean 2-Liter soda bottles
- Paper towel
- Water
Procedure:
First shred a large amount of paper towel into Quarter-sized pieces. Fill each bottle with the paper towel shreds until they are about one-sixth of the way full. Slowly and carefully fill each bottle with water until each piece of paper towel is wet. Make sure the paper towels don’t clump together in the bottle. Now place at least ten mung bean seeds in each bottle and cap the top after you have done so. Now place one bottle in an entirely dark environment, and the other in a generally light environment. After a week, gather the two bottles and remove the mung bean sprouts from each bottle. Record the height of each mung bean sprout, and calculate the average height of the sprouts that grew in the dark environment and the average height of the sprouts that grew in the light environment.
