Weathering

Manuel is using glass marbles as a model of rocks. He wants to show how ice can weather rocks. His plan is to cover the marbles with water and freeze them.

What kind of glass marbles would be most useful for Manuel to use?

• the strongest marbles possible

• marbles that are only brown and gray

• marbles that have thin cracks on their surfaces

How does water change the rocks of an ocean beach?

• It makes them bigger and rougher.

• It makes them smaller and smoother.

Tags

NGSS.MS-ESS2-2

This photo shows a large rocks. Observe the tiny pits on the surface of this rock which developed over time.

What caused these pits?

• weathering from water

• weathering from wind

• ice wedging

Tags

NGSS.MS-ESS2-2

What caused these pebbles to get their smooth, rounded shape?

• water seeping inside the pebbles

• cold air seeping inside the pebbles

• weathering from rushing water

Tags

NGSS.MS-ESS2-2

How did ice act to break apart this boulder?

Tags

NGSS.MS-ESS2-2

Weathering means . . .

• The climate or temperature of an area.

• the process that increases Earth's rock into larger pieces.

• the process that breaks rocks in Earth's crust into smaller pieces.

How long does the weathering process take?

• A few days

• Exactly one year

• Years and years