Split the lower half of a celery stack, place one side in blue water colored with food coloring and place the other side in red water colored with food coloring.
Grow corn in baggies! Have children put popcorn seeds in bag with a small handful of dirt — water. Tape on wall or on window — you will see corn growing!
Sit a potato or carrot on a jar filled with water, (do not submerge). You can hold the top part up by using toothpick around the vegetable and placing it on the rim of the jar. Watch the sprouts grow!
Place a celery stalk in a jar of water with food coloring. Watch the stalk turn colors after a few days.