Does a plant grow taller under blue, green, or red light?
Are there more insects living under a log or a rock?
Will a golf ball float higher in milk, water, or soda?
Does a seed cooked in a microwave grow faster or slower than a regular seed?
Does a plant grow taller in all light, some light, or no light?
Will salt or sugar crystals grow larger?
Does a cloth or disposable diaper absorb more volume of water?
Does a small, medium, or large magnet pick up the most paperclips?
Will seeds in a wet cloth sprout faster or slower than seeds in a jar?
Which falls the fastest: maple seed, acorn, or pine cone?
Does your heart rate increase more with running or with jumping jacks?
Does a cut flower last longer in sugar water or salt water?
Will diet soda or regular soda decay teeth faster?