Soil

What is HUMUS made from?

• Chick-Peas
• The remains of decayed plants and animals
• Beans
• Cheese

Tags

NGSS.MS-LS2-1

Which layer is the bottom of the soil profile?

• C - Partially Weathered Parent Material
• D - Separated rock
• R - Bedrock
• A - Topsoil

Tags

NGSS.MS-ESS2-2

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?

• sand
• silt
• clay
• humus

Tags

NGSS.MS-LS2-3

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Tags

NGSS.MS-LS2-3

Rocks near the ocean get broken into smaller pieces. What causes this change to these rocks?

• Leaves falling from trees

• Clouds forming in the sky

• Water crashing against the rocks

• Salt dissolving in the water

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

Are there minerals in soil?

• Yes
• No

Tags

NGSS.MS-ESS3-1

Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?

• clay
• sand
• silt
• humus

Soil is the mixture of what four different materials? (Pick all that apply.)

• weathered rock (minerals)

• humus

• air

• water

Tags

NGSS.MS-LS2-3

What do we call dirt?

• air
• water
• soil
• ice

Soil is made of small ______.

• icicles
• particles
• plastics
• bricks