1. Which percentage of Earth's water is freshwater available for most human use?

2. Which process moves water from the ocean and lakes into the atmosphere?

3. Which of the following is a renewable energy source?

4. Coal is formed primarily from the remains of:

5. Fill in the blank: An underground layer of rock or sediment that holds groundwater is called an ___________.

6. In one or two sentences, explain how sedimentary rock layers and fossils help scientists determine the relative ages of Earth events.

7. Match each energy resource to its category. Draw a line between columns.

8. Drawing activity: Sketch three layers of sedimentary rock. Include a fossil in the lowest layer and label each layer. Below your drawing, write a short caption (1-2 sentences) that explains what the fossil's position tells you about its relative age.