Q: Swamp plants die, fall to the ground, and are buried by other dying plants. Approximately how long would it take for plants to possibly become a fossil fuel?

OPTIONS:
- 1,000,000 years
- 100,000 years
- 10,000 years
- 1,000 years
A: 1,000,000 years
Q: Two identical plants are planted 3 meters apart. One plant is flowering, but the other is not. A student concludes that the plants are receiving an unequal supply of water. Another possible explanation the other plant is not flowering is that the plants are

OPTIONS:
- too close to one another.
- receiving different amounts of sunlight.
- in soil with high humus content.
- receiving different amounts of carbon dioxide.
A: receiving different amounts of sunlight.
Q: Which of these would be a model of diffusion?

OPTIONS:
- a student passes through a door
- two students pass by each other
- two students bump into each other
- students pass from a crowded room into a hall
A: students pass from a crowded room into a hall
Q: What do ice, a rock, and a piece of aluminum have in common?

OPTIONS:
- They are all solids.
- They are all liquids.
- They are all minerals.
- They are all elements.
A:
They are all solids.