All ages
Making cakes is an enjoyable way to help children of all ages learn about chemical reactions and change.
What You Need
- 3 small bowls
- Several sheets of aluminum foil
- Pie pan
- Cooking oil
- Measuring spoons
- Ingredients for one cake: (You’ll need to measure and mix this set of ingredients four times—with the exceptions that are given below.)
- 6 tablespoons flour
- 3 tablespoons sugar
- 1 pinch of salt
- 2 or 3 pinches of baking powder
- 2 tablespoons milk
- 2 tablespoons cooking oil
- 1/4 teaspoon vanilla
- Part of an egg (Break egg into a cup; beat until mixed. Use 1/3 of it.
Save the rest for 2 of the other cakes.) < !!! >
What to Do
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With your child do the following:
- Wrap several sheets of aluminum foil around the outside of a small bowl to form a mold.
- Remove your foil “pan” and put it in a pie pan for support.
- Oil the “inside” of the foil pan with cooking oil so the cake doesn’t stick.
- Turn the oven on to 350 degrees. < !!! >
- Mix all of the dry ingredients together.
- Add the wet ones (only use 1/3 of the egg; save the rest for later use).
- Stir the ingredients until smooth and all the same color.
- Pour batter into the “pan.”
- Bake for 15 minutes.
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Help your child to make three more cakes, but tell him to do the following:
- Leave the oil out of one.
- Leave the egg out of another.
- Leave the baking powder out of the third.
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After baking, have him cut each cake in half and look inside.
- Do the cakes look different from each other?
- Do they taste different from each other?
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Tell your child to write about, or draw pictures of, what he observes.
— Heat helps baking powder produce tiny bubbles of gas, which makes the cake light and fluffy ( leavening).
— Heat causes protein from the egg to change and make the cake firm.
— Oil keeps the heat from drying out the cake.