Unit 3 lesson 3 grade 6

What is the atmosphere?

• The gases that surround the Earth (close to Earth).

• The living organisms (plants and animals) that occupy the surface, atmosphere, and hydrosphere of the Earth.

• All the waters on the Earth's surface (e.g., rivers, lakes, oceans).

• The hard, solid part of the Earth (e.g., the soil and rock near the surface).

What is biosphere?

• the gases that surround the earth (close to earth)

• the living organisms (plants and animals) that occupy the surface, atmosphere and hydrosphere of the earth.

• all the waters on the earth's surface (e.g., rivers, lakes, oceans)

• the hard, solid part of the earth (e.g., the soil and rock near the surface)

What is hydrosphere?

• all the waters on the earth's surface (e.g., rivers, lakes, oceans)

• the hard, solid part of the earth (e.g., the soil and rock near the surface)

• the living organisms (plants and animals) that occupy the surface, atmosphere and hydrosphere of the earth.

• the gases that surround the earth (close to earth)

What is lithosphere?

• the hard, solid part of the earth (e.g., the soil and rock near the surface)

• the living organisms (plants and animals) that occupy the surface, atmosphere and hydrosphere of the earth.

• all the waters on the earth's surface (e.g., rivers, lakes, oceans)

• the gases that surround the earth (close to earth)

What is pollution?

• materials that people put into the environment that can be harmful if there is too much (e.g., smog in air harmful chemicals in water)

• the cutting down of forests

• a region in the U.S. where agricultural crops died during years when there was too little precipitation in the 1930's and winds blew away soil that was not covered by plants

• rainfall that has such a high amount of acid that it harms forests; caused mainly by air that comes from places that burn coal that has high amounts of sulfur.

What is deforestation?

• the cutting down of forests

• materials that people put into the environment that can be harmful if there is too much (e.g., smog in air harmful chemicals in water)

• a region in the U.S. where agricultural crops died during years when there was too little precipitation in the 1930's and winds blew away soil that was not covered by plants

• rainfall that has such a high amount of acid that it harms forests; caused mainly by air that comes from places that burn coal that has high amounts of sulfur.

What is dust bowl?

• a region in the U.S. where agricultural crops died during years when there was too little precipitation in the 1930's and winds blew away soil that was not covered by plants

• the cutting down of forests

• the hard, solid part of the earth (e.g., the soil and rock near the surface)

• rainfall that has such a high amount of acid that it harms forests; caused mainly by air that comes from places that burn coal that has high amounts of sulfur.

What is acid rain?

• rainfall that has such a high amount of acid that it harms forests; caused mainly by air that comes from places that burn coal that has high amounts of sulfur.

• hazy air that contains smoke or particles or other pollutants.

• removal of soil or rock materials by the force of blowing wind or by the force of fowing water

• long-term trends in weather conditions (e.g., long-term temperature and precipitation conditions

What is smog?

• hazy air that contains smoke or particles or other pollutants.

• removal of soil or rock materials by the force of blowing wind or by the force of fowing water

• long-term trends in weather conditions (e.g., long-term temperature and precipitation conditions

• changes in temperature and precipitation that occur over a long period of time

What is erosion?

• removal of soil or rock materials by the force of blowing wind or by the force of fowing water

• long-term trends in weather conditions (e.g., long-term temperature and precipitation conditions

• changes in temperature and precipitation that occur over a long period of time

• sudden growth and expansion of algae (tiny non-fowering plants that grow in water), appearing as a large area of green