Problem:OPTIONS:
- The bending of a ray of light
- When it becomes a gas
- chemical equations
- When it becomes a solid
- kinetic energy
- When its mass increases
- When it condenses
- matter vibrating

Fact 1: Heating a liquid can be used to identify that liquid 's boiling point. Fact 2: Boiling is the conversion of a liquid to a gas. Given the two facts above, what can be learned from heating a liquid?
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A: When it becomes a gas

Problem:OPTIONS:
- cigarettes
- bacteria
- adding heat
- heat or cold
- burning
- Dehydration
- lungworms
- Pollution

Fact 1: Some parasites kill their host, but most do not. Fact 2: Parasites include lungworms and GI parasites. Given the two facts above, what can kill their host?
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A: lungworms

Problem:OPTIONS:
- rain or sun shine
- kinetic energy
- Energy.
- heat energy
- rays or beams
- sensory neurons
- Electrical energy
- sunlight

Fact 1: If an object reflects light toward the eye then that object can be seen. Fact 2: Light seems to travel in rays or beams. Given the two facts above, what does an object reflect toward the eye to be seen?
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A: rays or beams

Problem:OPTIONS:
- salmon
- stream
- wind
- rain
- deltas
- rivers
- H20
- gills

Fact 1: Wind causes erosion. Fact 2: Sedimentation is the result of erosion. Given the two facts above, what causes sedimentation?
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A:
wind