Experiment 1: Food Coloring Traveling Up a Celery Stalk
Fill a mason jar or glass half way with water strongly dyed with purple, red, or blue food coloring. (We used separate mason jars so each child could make their own, but only 1 is needed. As a variation, you could use several mason jars and add different color dye to each jar and predict what would happen). Add 5 stalks (approximately the same size) to the jar. After 3 hours remove one celery stalk from the jar. Carefully peel around the edge (using a vegetable peeler if necessary) to see how far the dye has traveled up the “tubes”. Draw your observations (use my free printable!). Repeat at 6, 9, 24, and 48 hours.
After 24-48 you should start to see the food coloring in the leaves.
Peel the stalk to observe the food coloring in the "tubes".
Experiment 2: Walking Water
After 2 hours:
Don't forget to grab a copy of the Plant Science Experiment Sheets to record your predictions, observations, and conclusions!