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B1 ahmad sheikhali
Term | Definition |
---|---|
What is a system | parts that act as a whole |
What is energy | ability to do work |
What is matter | anything that has matter and takes up space |
What is the main source of external energy for earth | the sun |
What is a closed system | where only energy can be exchanged |
What is an open system? | where matter and energy can be exchanged |
Why is earth essentially a closed system | we dont lose much matter |
When a volcano erupts give an example of how it interacts with with the atmosphere and geosphere, and biosphere. | ash in the sky, break the land, kill animal or plants |
Give an example of how the hydrosphere can interact with the geosphere. | tsunami |
Label the spheres in the following picture. | hydrosphere cryosphere geosphere atmosphere |
What kind of energy causes the earth's crust to move? | geothermal |
What are the two laws of thermodynamics? | energy cannot be lost or broken |
What element makes up the largest percent of the atmosphere? | nitrogen |
What percentage of the atmosphere is nitrogen? | 78 |
What percentage of the atmosphere is oxygen? | 21 |
How much of the earth is covered in salt water? | 98 |
How much of the earth is covered in freshwater? | 2 |
What sphere have humans had the least impact on? | geosphere |
What is the hydrosphere? | all water on earth |
What is the cyrosphere | all frozen water on earth |
What is the biosphere? | all life on earth |
What is the geosphere? | all of earth |
What is the atmosphere? | gases surrounding earth |
Label the picture of the water cycle | water from oceans, lakes, swamps, rivers, plants, and even you, can turn into water vapor. Water vapor condenses into millions of tiny droplets that form clouds. Clouds lose their water as rain or snow, which is called precipitation. |
What is the percent of elements in Earth’s Atmosphere? | |
Nitrogen | 78 |
Oxygen | 21 |
other | 1 |