Q: Fact: baking soda can react chemically with vinegar
Question: A chemical reaction to vinegar or to baking soda can be caused by adding

A: cola

Q: Fact: food is a source of energy for animals
Question: When animals need to recharge, they are unable to use electricity, and therefore

A: rely on calories

Q: Fact: electricity causes less pollution than gasoline
Question: Battery powered vehicles have less emissions than

A: dragsters

Q: Fact: An example of navigation is directing a boat
Question: A navigator may be in charge of

A:
conducting a car