1. The portion of the earth facing the sun experiences _____while the other half away from the sun experiences ___.

• A. day, night

• B. night, dawn

• C. night, day

• D. dawn, night

2. Which body system protects the organs of the body such as the heart, lungs, and brain?

• skeletal system

• circulatory system

• muscular system

• digestive system

3. Why is it difficult for us to go up in a mountain than go down?

• we are moving against gravity

• we are pulled by the wind

• we are moving towards gravity

• none of the above

4. Why are coal, oil, and natural gas considered nonrenewable resources?

• There is a limited supply, and they can be replaced in a short period of time.

• There is not a limited supply, and they cannot be replenished in a short period of time.

• There is a limited supply, and they cannot be replenished in a short period of time.

• There is not a limited supply, and they can be replaced in a short period of time.

5. Carbohydrates are made up of which monomers (smallest units)?

• amino acids

• nucleotides

• simple sugars (glucose)

• fatty acids

6. Who discovered the cell.

• Robert Brown

• Robert Hook

• Alexander Volta

• Charles Darwin

7. Photosynthesis takes place within me. I am a...

• Mitochondria

• Cell Wall

• Chlorine

• Chloroplast

8. What's it called when liquid rock (magma, lava) erupts through the Earth's crust?

• earthquake

• volcano

• hurricane

• tsunami

9. What kind of energy do plants get from the Sun?

• solar

• electrical

• mechanical

• sound

10. Which planet spins the fastest?

• Venus

• Mars

• Jupiter

• Neptune