Assessment: 24-25_HISD_CADFA_G3_SCI_E_2.21

When we reduce waste, we are

• Throwing everything away

• Using fewer things and make less trash

Soil is BEST describe as

• Soil is a mixture of weathered rock and decomposed plant and animal material.

• Soil is a mixture of large rocks and broken down leaves.

It is important to protect forests and trees because ______

• They give us oxygen and help clean the air

• They only look nice

Which process or event is NOT a rapid change to Earth's surface?

• Volcanic eruption

• Decomposition of plants

• Landslide

• Earthquake

The formation of soils like sand and clay, is a process.

• Physical
• Chemical

• Biological

Is this image showing the changes to Earth's surface due to an earthquake?

• Yes

• No

Third grade students made posters about why it is important to conserve natural resources. Which statement should they add to their poster?

• It is important to conserve natural resources so we have enough resources for future generations.

• Reusing water bottles and plastic bags is not helpful.

During a landslide a large amount of rock and soil quickly moves downhill.

• Yes

• No

Which of the following natural resources is used to make glass and some building materials?

• Sand

• Water

• Wind

• Plants

Which statement about how decomposition helps create soil is true?

• Decomposition adds small pieces of rock to create soil.

• Decomposition makes soil hard and dry.

• Decomposition turns dead plants into nutrients to mix with soil.

• Decomposition moves sand and clay to new places to create soil.