Q: Fact 1: Hydrogen bonds cause water to expand when it freezes. Fact 2: Water is made up of H2O molecules. Given the two facts above, what does hydrogen bonds cause to expand when it freezes? | OPTIONS:
- oxygen
- atomic bombs
- rain
- NaCl
- H20
- lake
- hydrogen
- h2o
A: h2o

Q: Fact 1: Secondary growth forms secondary vascular tissues and bark. Fact 2: All trees have bark. Given the two facts above, what has secondary growth? | OPTIONS:
- viscosity
- plants
- oak
- density
- ferns
- primary
- trees
- leaves
A: trees

Q: Fact 1: Dew is formed when water vapor condenses over night. Fact 2: Rocks and grasses glisten with dew. Given the two facts above, what happens when water vapor condenses over night? | OPTIONS:
- water evaporates
- Something that makes plants green
- lakes freeze
- Warm air moving into cold air
- rocks and grasses glisten
- refraction of light
- lawns dry out
- it keeps an organism warm
A: rocks and grasses glisten

Q: Fact 1: Looking at bright objects has a negative impact on the eyes. Fact 2: Outside, the sun is bright. Given the two facts above, looking the sun has a what impact on the eyes? | OPTIONS:
- heat energy
- sunlight
- positive
- Temperature
- negative
- confusing
- neutral
- dangerous
A: negative