Problem:OPTIONS:
- Too much lava in the volcano
- energy of moving objects
- Lava getting too hot
- Earthquakes
- Tectonic plates moving
- fissures of hot, acidic water
- heating liquids
- The area was once underwater

Fact 1: The movement of tectonic plates causes volcanic eruptions. Fact 2: Plate techtonics could be defined as the movement of the earth's sections or plates as a result of convectional forces below the surface. Given the two facts above, what causes volcanic eruptions?
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A: Tectonic plates moving

Problem:OPTIONS:
- gravity
- density
- a prism
- nitrogen
- mass
- water vapor
- arteries
- glass

Fact 1: If gas is heated then that gas will expand. Fact 2: Nitrogen gas is the most abundant gas in the atmosphere. Given the two facts above, what will expand when heated?
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A: nitrogen

Problem:OPTIONS:
- Dead prehistoric beings
- Under water
- basic building blocks of life
- dead organisms
- decaying trees
- burning coal
- A factory
- Outerspace

Fact 1: Heat and pressure change the remains of prehistoric living things into natural gas. Fact 2: Natural gas is the cleanest of the fossil fuels. Given the two facts above, where do fossil fuels come from?
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A: Dead prehistoric beings

Problem:OPTIONS:
- fungi
- barnacles
- fish
- cacti
- humans
- Most plants
- bacteria
- h2o

Fact 1: Flagella help prokaryotes move. Fact 2: Prokaryotes All bacteria are prokaryotes. Given the two facts above, what uses flagella to move?
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A:
bacteria