Preschool Science
Celery and Food Coloring

"Celery science" is a cool preschool science project that you can use to introduce your kid about human blood system.

what you need:
celery stick, 2 glasses, food coloring, water

Procedure :
1. First, use a knife to carefully trim the end of the celery stalk.
2. Then, fill a glass with water and add a few drops of food coloring.
3. Now put the celery stalk into the glass of colored water.
4. You'll soon see the water travel up the veins of the celery stalk.

Now for more fun,

Try this again but use two glasses of differently colored water.

Split about 1/3 of the celery stalk in half. Place each half into the two glasses of colored water.

The stalk will start to change to the same color as the water it was in.

You can try the same steps with white carnations, and you can get the blooms to turn into two different colors!

But note that it takes a few hours to change colors.

The scientific explanations :
A celery vein is a simple way to think of the human blood system. Celery veins transport, or carry, water and nutrients in the plant. Blood is transported in a similar manner in the human body.

Something for the kids to think about!