Week 23

How do trees help the geosphere?

• They provide oxygen.

• They keep the water clean.

• They offer shelter to squirrels.

• They prevent soil erosion.

Which basic need do trees NOT supply?

• air

• water

• shelter

• food

Trees are also sometimes called ____________ because they absorb air pollutants through their leaves.

• Heart of the Earth

• Eyes of the Earth

• Lungs of the Earth

• Fingers of the Earth

Cutting down trees in mass quantities for human use is called ____________.

• Watershed

• Deforestation

• Overfishing

• Nonforestation

Tags

NGSS.MS-LS2-5

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Why would it take a long time for cleared land to become forest again?

• Grasses and flowers block sunlight.

• Trees require animals to live in them.

• It takes a long time for trees to grow.

• Trees do not like to grow on bare soil.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A ____________ is a particular region of land where water drains into a common outlet.

• Watershed

• Deforestation

• Overfishing

• Waterbarn

Tags

NGSS.MS-ESS2-4

Philadelphia is part of which watershed?

• Pennsylvania River

• Mississippi River

• Colorado River

• Delaware River

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

Why does water in a watershed end up at the same body of water?

• All precipitation falls into it

• Water vapor is attracted to it

• Animals carry all of the water to it

• The land is sloped in that direction

Tags

NGSS.MS-ESS2-4

Where does all the water on Earth eventually flow?

• Marshes

• Oceans

• Reservoirs

• Springs

Tags

NGSS.MS-ESS2-4

What is a source of runoff pollution?

• Bees collecting pollen

• Trees shedding leaves

• Oil leaking from cars

• Predators hunting prey