Thi HK2 Thuy AN_Science Vocabulary and Knowledge Review

What are tiny pieces of rock called?

• Sediment

• Erosion

• Deforestation

• Weathering

What makes rocks smooth? (Choose more than one)

• Wind

• Magma

• Water

• Light

The process of changing Earth’s surface by wind and water is a _________ process.

• fast

• good

• slow

• quick

Choose the INCORRECT answer. How does wind affect the dune?

• It changes the dune’s size.

• It builds up the dune.

• It changes the dune’s color.

• It makes unusual shapes.

How does the wind change rocks? (Choose three answers)

• Wind makes rocks look smooth.

• Wind forms unusual stone shapes.

• Wind changes the color of rocks.

• Wind breaks the rocks into smaller pieces.

Why is it easier for wind to move sand than to erode rocks?

• Wind cannot erode rocks.

• Wind just can move sand.

• Sand is formed from rocks.

• Sand is smaller and lighter than rocks.

Wind and water move sand. This is an example of ________.

• Erosion

• Weathering

• Washing

• Blowing

Why do some places need levees and flood walls?

• To stop the wind.

• To hide secrets from other places.

• To keep the water out of places.

• To make the place a better look.

What can we do to protect the city from floods? (Choose more than one)

• Build levees

• Throw trash

• Design a better drainage system

• Plant trees

What are the consequences of flooding? (Choose more than one)

• Loss of human life

• Houses are destroyed

• Water pollution

• Landslide risks