Grown-up alert!
3 cups containing a little coffee or leftover food.
Your magnifying glass.
Your science journal.
Look inside the cups every day for several days and write down what you see. Your magnifying glass will help. (It may take a few days for the mold to start growing.)
more slowly,
more quickly, or
at the same rate as the one in the refrigerator.
Does the cup on the windowsill grow mold at the same rate as the one in a dark cupboard?
Pickles in a jar
Cottage cheese
Bread
Paint on the walls
Oranges
House plants
Tiles around the bathtub or shower.
Molds can be a nuisance when they settle on our food or possessions. But molds are also useful. The green spots on old oranges are penicillin mold. This is what the medicine is made from.