Chapter 6, Lesson 4

Cycles of Life1. water cycle

2. carbon cycle

3. nitrogen cycle

4. water vapor

5. groundwater

6. watershed

7. runoff

8. composting

9. raw materials

10. inexhaustible

resource

11. renewable

resource

12. non-renewable

resource

Water Cycle – the continuous

movement of water between the Earth’s

surface and the air, changing from liquid to gas

to liquid.

Carbon Cycle – the continuous transfer of

carbon between the atmosphere and living things.

Just like water in the water cycle, carbon is renewed in

the carbon cycle.

Click on the picture to play the carbon cycle labeling game!

Click here for carbon cycle videos.

Nitrogen Cycle – the way nitrogen

moves between the air, soil, plants, and

animals.

Click on the picture for more information.

Click on the picture for more information.

water vapor – water in its gas state

groundwater – water that seeps in and

is stored in the ground

watershed – an area on which water runs

downhill to a common stream, lake, or river

runoff – water that moves across the

land, heading for low places, and eventually, the

ocean

composting – a process by which organic

matter like leaves, plant materials, food scraps and

grass clippings breakdown to be used in the soil.

The compost contains nitrogen, phosphorus, and

potassium, which help enrich the soil.

raw materials – things that are used

to make products – wood, metals, sand, oil are

all raw materials

inexhaustible resource – a

resource, like the sun, that will not run out

renewable resource – a

resource, like plants and animals, that can be

grown, or produced to make more

nonrenewable resource – many

raw materials, such as oil and metals are non-

renewable resources