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STUFF YOU’LL NEED:
bowl of water
highlighters
bubble solution
black light
Have a parent help you open the highlighter pen. Pull out the felt and place it in a small amount of water. Let it soak for a few minutes and then discard the felt. Add a small amount of bubble solution to the bowl. Your mixture should be half highlighter water and half bubble solution.
Turn on your black light and blow bubbles. Describe what happens:
STUFF YOU’LL NEED:
water in a spray bottle
bread, cheese, apple cut into one-inch cubes
canning jars with lids
THE EXPERIMENT
1. 2.
Spray each piece of food with a little water. Place each piece of food in a separate jar, screw on the lid and write the food type and date on the top. Place the jars in different locations—in sunlight, a dark place (inside a paper bag would work), a cool place (in your refrigerator) and one in a warm place. Examine the jars everyday, observe the changes, and record how quickly food gets moldy.
Unlike plants, molds don’t grow from seeds. They grow from spores that float in the air. These spores multiply on damp food and the chemical they produce will make the food rot. Don’t open your jars as more spores are forming and could be released into the air. Molds can make people sick.
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Standards Link: Science Investigation: Conduct simple experiments.
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© Vicki Whiting October 2024
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