Q: Fact 1: Hibernation is used for conserving energy by some animals. Fact 2: Animals that sleep through the winter are said to hibernate. Given the two facts above, why do animals sleep through winter? | OPTIONS:
- To conserve energy
- recovery time from fatigue
- They get bored
- Endocrine system
- They only like warmth
- dormant state
- To save time
- hydration
A: To conserve energy

Q: Fact 1: Heterotrophs get food by eating other living things. Fact 2: All fish are heterotrophic. Given the two facts above, what gets food by eating other living things? | OPTIONS:
- plants
- humans
- people
- phytoplankton
- fungi
- cats
- fish
- water
A: fish

Q: Fact 1: Boiling means change from a liquid into a gas by adding heat energy. Fact 2: Water is heated to the boiling point and changes to steam. Given the two facts above, what does water turn into after boiling? | OPTIONS:
- gas
- Dew
- lake
- solid
- oxygen
- liquid
- oil
- salt
A: gas

Q: Fact 1: Cells vary in size as well as shape, but all cells are very small. Fact 2: Bacteria are single-celled animals. Given the two facts above, bacteria are? | OPTIONS:
- larger than giraffes
- negative
- bigger than the Sun
- very small
- contamination
- very large
- survive
- genus
A: very small