Science Checkpoint 3 Review

A farmer is evaluating four methods of preventing farm runoff from reaching the nearby streams and rivers. Which method would be best for the farmer to use?

• Build concrete canals on the farm to help water drain into a nearby lake.

• Grazing animals and plant crops on the sides of hills so that runoff flows more quickly.

• Develop wide ditches filled with plants to give the runoff more time to soak into the ground.

• Remove trees and grasses from the sides of the rivers and replace them with barriers made of rocks.

What happens to rainwater in a city when it cannot soak into the ground?

• It evaporates immediately.

• It is collected to avoid flooding.

• It turns into groundwater.

• It stays on the roofs.

What often carries pollution from the city into nearby rivers and streams?

• Groundwater

• Runoff water

• Evaporated water

• Underground pipes

Which methods would best help people in a city neighborhood filter runoff before it enters local streams? Select the two correct answers.

• A. Holding Ponds

• B. Porous Pavement

• C. Planting More Trees

• D. Building More Roads

What happens to rainwater in a city when it cannot soak into the ground?

• It evaporates immediately.

• It is collected to avoid flooding.

• It turns into snow.

• It stays on the rooftops.

What is one consequence of removing trees and native grasses from land?

• Increased rainfall.

• More wildlife.

• Serious drought and dust in the air.

• Cooler temperatures.

What can rainwater running downhill across a plowed field pick up?

• Clean water

• Mud, animal waste, and farm chemicals

• Fresh air

• Sand and rocks

What happens to rainwater in a city when it cannot soak into the ground?

• It evaporates immediately.

• It is collected to avoid flooding.

• It turns into snow.

• It stays on the roofs.

What is a consequence of removing trees and grass for city development?

• Increased wildlife habitats

• More natural water absorption

• Direct runoff into sewers and rivers

• Less pollution in the city

Water evaporating from the surface of a lake moves from which two spheres?

• Hydrosphere and atmosphere

• Atmosphere and geosphere

• Geosphere and hydrosphere

• Biosphere and atmosphere