The O Horizon of soil is composed MAINLY of…

tightly packed clay and minerals

The A Horizon of soil is composed MAINLY of…

tightly packed clay and minerals

The B Horizon of soil is composed MAINLY of…

tightly packed clay and minerals

The C Horizon of soil is composed MAINLY of…

large pieces of slightly weathered solid rock

tightly packed clay and minerals

The R Horizon of soil is composed MAINLY of…

large pieces of slightly weathered solid rock

tightly packed clay and minerals

Why is the C Horizon also called the parent material layer?

It’s made of large weathered rocks that become part of the soil above.

It contains decaying organic material.

It contains most of the plant roots.

It is tightly packed clay with some minerals.

Why does water flow through sand easily, but it does not flow through clay?

Sand has large particles with space between them, but clay has small particles packed closely together.

Sand is light brown, but clay is a reddish color.

Sand is very thin, but clay is a lot thicker and heavier.

Sand contains more humus, but clay contains more minerals.

Fossils of clams and fish were found high in the Himalayan Mountains, far above sea level. What does this suggest about the mountains?

The Earth’s crust that formed these mountains used to be covered by an ocean.

Animals that now live on the mountains used to live underwater.

There used to be a small ocean at the top of the mountain before heat made it dry up.

Continental drift caused two tectonic plates to move closer to each other over time.

Fossils of a fern and other tropical, large-leafed plants were found in an area of Alaska, which is frozen. What does this suggest about this area in Alaska?

The area used to have a warmer climate.

There used to be underwater caves there.

A farm was once located in the area.

Dinosaurs used to eat tropical plants.

Fossils of a dinosaur species have been found in South America and Africa. The dinosaur could not swim or fly. What does this suggest about the continents of South America and Africa?

The continents were once connected.

A land bridge once covered the continents.

The same type of animals evolved on both continents.

Prehistoric man transported the dinosaur between the continents.

Unit 5 Test: Earth's Changing Surface Study Guide

Quiz

•

Science

•

6th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-ESS2-2, MS-LS4-1, MS-ESS1-4

+6

Standards-aligned

Sarah Adams

Used 14+ times

FREE Resource

42 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A large canyon with a river running through the bottom was MOST LIKELY formed by…

erosion

earthquake

deposition

volcanic eruption

Tags

NGSS.MS-ESS2-2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A delta, a shallow area of sediment built up at the mouth of a river, was MOST LIKELY formed by…

erosion

earthquake

deposition

volcanic eruption

Tags

NGSS.MS-ESS2-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An island in the ocean was MOST LIKELY formed by…

erosion

earthquake

deposition

volcanic eruption

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Floodplains, shallow areas of sediment built up along the sides of a river, were MOST LIKELY formed by…

erosion

earthquake

deposition

volcanic eruption

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A cliff beside the sea was MOST LIKELY formed by…

erosion

earthquake

deposition

volcanic eruption

Tags

NGSS.MS-ESS2-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do wind and water change rocks over time?

They add minerals to the rocks.

They change the shape of the rocks by adding or removing sediment.

They increase the density of the rocks.

They build up the rocks with small sand particles.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Blue Ridge Mountains in Virginia used to be one of the tallest mountain ranges in the world. What natural process would have removed sediment from the mountains and caused them to lose height?

erosion

deposition

earthquakes

ice wedging

Tags

NGSS.MS-ESS2-2

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Unit 5 Test: Earth's Changing Surface Study Guide

42 questions

A large canyon with a river running through the bottom was MOST LIKELY formed by…

A delta, a shallow area of sediment built up at the mouth of a river, was MOST LIKELY formed by…

An island in the ocean was MOST LIKELY formed by…

Floodplains, shallow areas of sediment built up along the sides of a river, were MOST LIKELY formed by…

A cliff beside the sea was MOST LIKELY formed by…

How do wind and water change rocks over time?

The Blue Ridge Mountains in Virginia used to be one of the tallest mountain ranges in the world. What natural process would have removed sediment from the mountains and caused them to lose height?

Water freezes in the cracks of rocks and then expands, breaking the rocks apart. This is an example of ____________ weathering.

Rainwater mixes with carbon dioxide in the air as it sinks into the ground, turning it into a weak acid. This acidic water dissolves limestone underground and causes a cave to form. This is an example of ____________ weathering.

When changes to a rock's chemical composition cause it to weaken or dissolve, it is known as ______________ weathering.

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