Unit 8 Review

Landfills are a way to manage trash by burying the trash underground. Modern landfills have a bottom layer of thick clay covered with a plastic liner. On top of the plastic liner, the landfill has pipes with holes that flow to collection tanks. If a landfill lacked the clay, plastic, and pipes, how would the environment most likely be affected?

• Rainwater would not absorb into the ground below the landfill

• Animals would be more attracted to the landfill due to odor.

• Groundwater near the landfill would be polluted

• Garbage in the landfill would not be compacted

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What does the movement of colored water across the sand into the water best model?

• evaporation of surface water

• infiltration of groundwater

• condensation of water vapor

• pollution of surface water

Tags

NGSS.MS-ESS2-4

Students designed an experiment to study where water drains after the sprinkler system is used to maintain the football field. They attached a container that added red dye to the water before it was sprayed onto the football field. Students placed water collection containers in many places near the field. Which location could the students place a water collection container to determine the effect of runoff from the football field?

• In the ground near the sprinkler

• In a gutter that flows to a nearby pond

• Directly under the sprinkler

• Suspended directly above the sprinkler

Tags

NGSS.MS-ESS2-4

Which of the following sets of equipment can be used to analyze the effects of human activity on a watershed?

• water testing kit, triple beam balance

• water testing kit, beaker, hotplate

• hotplate, beaker, graduated cylinder

• water testing kit, handlens, notebook

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Students designed an experiment to determine how the fertilizer runoff from fields effects ponds. Students used two large outdoor tanks and planted the same variety and amount of aquatic plants in soil placed at the bottom. Students added local fish and samples of local pond water with microorganisms in each tank. One tank was left alone while the other tank had fertilizer added daily. The following table contains possible for algae growth covering the surface of the tanks.

The table in the picture contains data sets for algae growth covering the surface of the tanks.

Which data set most likely represents the experiment's results after seven days?

• data set A

• data set B

• data set C

• data set D

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When excessive amounts of hot water are discharged into a lake, the immediate result will most likely be a(n)-

**Think what happens in THERMAL pollution

• decrease in the amount of dissolved oxygen in the lake

• increase in the amount of dissolved oxygen in the lake

• increase in the amount dissolved chemical pollution in the lake

• decrease in the amount dissolved chemical pollution in the lake

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

If a large volcano that is on an island erupts, it will impact the local ecosystem. Which of the following is NOT a way the volcano will affect the local ecosystem?

• Lava will run down from the volcano, burning down all the trees around the volcano

• The lava from the volcano will heat up the air in the local area and kill all life in the area

• When the volcano erupts, it will throw dust into the air affecting plants across the island

• The lava will run into the ocean around the island, killing coral reef animals

Tags

NGSS.MS-ESS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following describes an impact of floods on ecosystems?

• strong winds that uproot small plants and trees

• soil erosion along rivers that prevents plants from getting sunlight

• homes that are destroyed and people getting injured

• less competition for space and resources among aquatic organisms

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Hurricane Rita had a profound effect on some areas of Texas. While the strong winds generated by the hurricane destroyed homes and property, it also caused other dramatic impacts to the ecosystem. Which of the following was NOT an impact of Hurricane Rita?

• defoliation (removal) of forest canopies

• increase in the amount of bacteria beneficial to marine environments

• animal life was impacted by limited food availability

• changes in position of shorelines

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A student has a birdbath made of poured concrete. When she bought it, the salesman suggested that she seal the surface with a watertight solution.

Why was this suggestion made?

• The watertight solution would slow the evaporation of water during periods of warm weather

• Over time, rainwater would react with the surface of the concrete and deposit a mineral layer over the carved areas.

• In cold, wet weather, any water that seeped into the concrete could freeze and cause the birdbath to crack

• When rainwater sits in a concrete basin, the pH becomes too acidic for the birds. The solution allows the pH to remain neutral.