Fact 1: Afirecracker converts chemical energy into sound. Fact 2: Sound waves are vibrations in matter. Given the two facts above, a firecracker converts chemical energy into what?
OPTIONS:
- kinetic energy
- electromagnetic energy
- An object is seen
- vibrations in matter
- objects that have mass
- harmful substances
- The bending of a ray of light
- Loud noises

Answer: vibrations in matter

Fact 1: Heating an egg causes a chemical reaction in the egg. Fact 2: Fire is a chemical reaction. Given the two facts above, what can fire be used to do to an egg?
OPTIONS:
- kill them
- Decorate it.
- warmth
- Create hydrogen sulfide.
- It expands
- Heat it.
- Fertilize it.
- protect them

Answer: Heat it.

Fact 1: Chloroplasts are organelles that are found in the cells of plants and algae. Fact 2: Chloroplasts Chloroplasts contain photosynthetic pigments. Given the two facts above, what are found in algae?
OPTIONS:
- Energy.
- pigments
- bacteria
- meat
- melanin
- blood
- Energy
- hydrocarbons

Answer:
pigments