Soil POST Assessment

Are there minerals in soil?

• Yes
• No

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

Tags

NGSS.5-PS1-3

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.5-LS2-1

Which of the following is the largest particle in soil?

• sand
• silt
• humus
• clay

Many plants cannot grow in sandy soil. Why is this true?

• Sandy soil does not hold enough water.
• Air cannot pass through sandy soil.
• Roots cannot easily push through sandy soil.
• Sandy soil has too many nutrients.

Tags

CCSS.RI.5.8

CCSS.RI.6.1

CCSS.RI.6.8

CCSS.RL.6.1

CCSS.RL.7.1

Soil is made of

• weathered rocks and minerals

• dead plants and animals

• air and water

• all of the above

Soil formation begins with the weathering of_______.

• Humas
• Subsoil
• Litter
• Rock

The layer of soil which the topsoil is found.

• Horizon A
• Horizon B
• Horizon C
• Horizon D or R

Soil conservation includes all of the following EXCEPT_______.

• Desertification

• Contour plowing

• Planting cover crops

• Crop rotation

Which horizon is made up of partially weathered rocks?

• Horizon A

• Horizon B

• Horizon C

• Horizon R