1. Cycles in Earth Systems 8 th Grade Science Systems Assessment

2. Under Ground A B C SUN Land Clouds D Water moves in a cycle in the Earth’s system. The diagram below shows the processes water goes through as it cycles. Trees Air

3. Subsystems are subsets of interrelated parts within a larger system. The following would be considered subsystems.  Lake  Cloud  Land surface  Trees  Underground 1 Describe a subsystem shown in the Cycles in Earth Systems diagram.

4. AA.Sun BB.Soil CC.Wind DD.Ocean 2What is the source of energy for all parts of the water cycle?

5. A.Description of precipitation B.Description of transpiration or evaporation C.Description of evaporation D.Description of condensation 3 Describe one of the processes involved in the water cycle and indicate whether it is occurring at the place labeled A, B, C or D on the Cycles in Earth Systems diagram.

6. AA.More water will soak into the ground. BB.Water will stop condensing in the clouds. CC.More water will evaporate from the lake and surface of the land. DD.Less water will evaporate from the lake and the surface of the land. 4 What happens if the temperature of the air warms in the system shown in the Cycles in Earth Systems diagram?

7. Under Ground A B C SUN Land Cloud s D  Describe two changes that people could do to the landscape in the Cycles in Earth Systems diagram, and how that change would affect the water as it cycles. 5 The landscape in the Cycles in Earth Systems diagram does not show how people change landscapes. People construct buildings, harvest trees, grow crops, build roads, and much more. Many of these activities affect the water as it cycles.

8.  Planting more forests or trees would cause more water being stored in the trees.  Building roads would cause less water to soak into the ground or water could pick up impurities from cars.  Building houses would cause less water to soak into the ground, so there would be more surface runoff.  Plowing fields and irrigating them would divert water from flowing into the lake, and increasing salinization. Examples

9. Water dissolves substances, such as minerals and salt, as it passes through the water cycle. The diagram of the water cycle above labels four types of water (A, B, C, D). Put the different types of water in order, according to the amount of dissolved substances (least to greatest dissolved substances). Clouds Land Air 6 Water dissolves substances, such as minerals and salt, as it passes through the water cycle. The diagram of the water cycle above labels four types of water (A, B, C, D). Put the different types of water in order, according to the amount of dissolved substances (least to greatest dissolved substances).

10. AA.Oxygen BB.Nitrogen CC.Water vapor DD.Carbon dioxide 7What is the most abundant gas in the atmosphere?

11. AA.Oxygen BB.Nitrogen CC.Water vapor DD.Carbon dioxide 8Which gas in the atmosphere varies the most?

12. AA.The Earth’s surface heats unevenly. BB.Rising air becomes warmer from compression. CC.Warm air holds more water vapor than cold air. DD.Air becomes cooler when water vapor condenses. 9 What is the most important factor that results in the wind blowing?

13. AA.The air could feel colder because air temperature decreases the farther the air is above sea level. BB.The air temperature is actually the same high on the mountain as it is lower down, but the air would feel colder because it is windier. CC.The air temperature is actually the same high on the mountain as it is lower down, but the air could feel colder because they are closer to the clouds. DD.Air temperature would actually increase the higher they climb because they are getting closer to the sun, but the air could feel colder because it is windier. 10 As a family climbs a mountain, they notice that it is windier, cloudier, and feels colder the higher they climb. What could explain why the air feels colder higher on the mountain?