Q: Fact 1: Fire converts chemical energy into light and heat energy. Fact 2: Fire needs fuel to burn. Given the two facts above, what converts chemical energy into light and heat energy?

OPTIONS:
- Firecrackers
- breathing
- burning fuel
- eating food
- warmth
- condensing fuel
- Green beans
- cigarettes

A: burning fuel

Q: Fact 1: Condensing causes a liquid to form. Fact 2: Condensation is the opposite of evaporation. Given the two facts above, what causes liquid to form?

OPTIONS:
- opposite of evaporation
- Water expanding
- aqueous solution
- freezing
- heat production
- burning wood
- flow of electrons
- gas

A: opposite of evaporation

Q: Fact 1: Plants exhibit phototropism, or growing toward a light source. Fact 2: Many light sources such as the sun and most artificial lights produce unpolarized light. Given the two facts above, what is called when plants grow toward the sun or an artificial light?

OPTIONS:
- Exfoliation
- Brownian motion
- heat energy
- phototropism
- photovoltaic
- autumn
- peachleaf willow
- mitosis

A: phototropism

Q: Fact 1: When a hemisphere is tilted away from the sun , that hemisphere receives less direct sunlight. Fact 2: In winter, the northern hemisphere is tilted away from the sun. Given the two facts above, when does the northern hemisphere experience cooler temperatures?

OPTIONS:
- In the Autumn
- air cools
- dry and hot
- Under 32 degrees
- In the winter
- When it's cold
- In the Spring
- In the summer

A:
In the winter