Soil Review 3rd Grade

What is soil?

• Pieces of sidewalk

• Bits of rotten plants, animals, and weathered rocks

• Leftovers from volcanoes

• Crushed up Oreos

Humus is...

• worms

• potting soil layer of Earth

• soil layer of decaying plant/animal matter

• decaying rocks on top of the ground

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Topsoil, Subsoil, and Bedrock are what?

• The three main layers of soil

• Types of plants

• What houses are made of

• Charles' favorite foods

The three types of soil are...

• clay, dust, and dirt

• mold, moss, and crust

• clay, sand, and silt

• sand, dust, and rust

What type of soil lets the most water to pass through it?

• Silt

• Sand

• Clay

Humus has so much nutrients that what creature is found here?

• Bats

• Earthworms

• Birds

• Cows

What color is soil?

• Hot pink

• Navy blue

• many colors (red, brown, gray, yellow, black, etc.)

• Sparkly

Why is soil important for plant growth?

• It makes the Earth's surface hard

• It moves easily from one place to another

• It does not let plants grow roots too deeply

• It contains nutrients to help plants grow

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Soil is a natural resource so it should be...

• Thrown away

• Easily found

• Conserved (protected and valued)

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following relies on soil for survival?

• plants

• animals

• humus

• all of the above

Tags

NGSS.MS-LS2-1