Earth History I Check 1.

Some students are using acid to test rock samples they collected. Rock A bubbled, and rock B didn’t. What can students say about the rocks after completing this test?

• Rock B could be limestone, and rock A contains calcite

• Rock A could be limestone, and rock B does not contain calcite.

• Rock B is harder than rock A

• Rock A contains calcite and is probably shale.

Tags

NGSS.MS-PS1-2

You find some soil that is mostly made of clay and silt, but no sand. How might this soil have formed?

• Slow-moving water carried the sand downstream and left behind the silt and clay

• Wind blew all the sand away, leaving behind the silt and clay particles.

• A fast-moving stream dropped sand, silt, and clay in this place.

• Muddy water stood for a while, and the silt and clay settled out.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Where are cobbles most likely to be found?

• The top of the stream.

• The bottom of the stream.

• Throughout the whole stream.

• The end of the stream.

Where is clay found in a stream bed?

• The top of the stream.

• The bottom of the stream.

• Throughout the stream.

• In the middle of the stream bed.

Which explanation best describes how a boulder can turn into silt as it moves down a river?

• Water washes over it until it is silt-sized.

• It deposits into silt in the basin.

• It hits other rocks or objects and breaks apart.

• It moves down the river until it lands in a basin and becomes silt

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What is humus, and how does it form?

• Humus is rock material in soil that forms when broken bits of rock wash into the soil

• Humus is organic matter in soil that forms when rocks break down

• Humus is rock material in soil that forms when plants and animals eliminate waste

• Humus is organic matter in soil that forms when plants and animals decay or eliminate waste.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

__________ is a large, nearly level area of land that is higher than the surrounding area.

• mountain

• plateau

• valley

• hill

Flat deposits of rock that cover a large area are called ________

• hills

• canyons

• valleys

• layers

Tags

NGSS.MS-ESS1-4

When geologists work to find a relationship or connection between rock layers from two or more locations, we say that they are making a _______.

• correlation

• theory

• argument

• evidence

Tags

NGSS.MS-ESS2-3

Abrasion and ice wedging are forms of___________ weathering

• chemical

• climate change

• physical

• chemical and physical