What to Do
- 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.
- 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.
- 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?
- Tell your child to write about, or draw pictures of, what he observes.
Here are some of the chemical reactions that occur when baking the cake. Be sure to discuss them with your child after they make their own observations.
- 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.
Have fun, enjoy and let them eat cake!
If your child enjoys these types of science projects check out Kid Concoctions!