Question: Fact 1: Sound can be used for communication by animals. Fact 2: Sound occurs when a body, such as a vocal chord, vibrates, or moves back and forth. Given the two facts above, what use may some animals have for their vocal chords?
OPTIONS:
- support
- chiming
- exoskeleton
- courtship
- circulatory systems
- reading music
- writing
- communication
Answer: communication

Question: Fact 1: Aflashlight requires a source of electricity to produce light. Fact 2: Lanterns and flashlights are sources of light used for camping. Given the two facts above, what does a lantern use a source of electricity for?
OPTIONS:
- heat energy
- staying warm
- enclose light
- produce light
- absorb heat
- reflect light
- to move people
- protect them
Answer: produce light

Question: Fact 1: Fat is used to keep animals warm. Fact 2: Vegetation is required by many animals for warmth and security. Given the two facts above, fat is used to provide warmth and what?
OPTIONS:
- heat energy
- energy
- security
- disease
- concern
- support
- flavor
- growth
Answer:
security