A World of Change

When does weathering occur?

• During spring time

• When the weather is hot

• When wind, sun, rain, and snow break down rocks into smaller pieces

When does erosion occur?

• During winter

• When rocks are carried away by a natural force, such as a river.

• At the beach

Name two natural disaster examples

• Volcanic eruptions and landslides.

• Rainbows and flowers

• Stars and planets

Which heading belongs to the section about having an emergency plan in place so that you can evacuate quickly if there is a natural disaster?

• Slow and Steady

• Be Prepared

• Fast and Powerful

• Essential Question

Check the box next to the ways the earth slowly changes.

• landslides

• weathering

• erosion

• deposition

Fill in the Blank:

Some natural disasters are (a)   and strike without warning.

The Grand Canyon is an example of the effect of __________.

• deposition

• collapse

• weathering

• erosion

The text features that show the parts of something or how a process works are called __________. They have labels that tell about their different parts.

• timelines

• captions

• diagrams

• headings

What river carved the Grand Canyon over thousands of years?

• Mississippi River

• Columbia River

• American River

• Colorado River

What kind of landform can deposition by wind create?

• a beach

• a sand dune

• a mountain

• a canyon