Slow Changes in Earth

What is weathering?

• The process of breaking down landforms by natural forces

• The process of building up landforms

• The process of planting trees

• The process of creating new rocks

Tags

NGSS.MS-ESS2-2

What are tiny grains of sand made from?

• Larger rocks

• Water

• Air

• Plants

What helps living things decompose?

• Decomposers

• Sunlight

• Water

• Wind

Tags

NGSS.MS-LS2-3

Which of the following is NOT a decomposer?

• Tree

• Earthworm

• Fungi

• Bacteria

What is soil a mixture of?

• Weathered rock and plant and animal remains

• Only sand

• Only clay

• Only water

What can you find in soil near the coast?

• Pieces of seashells or seaweed

• Pieces of metal

• Pieces of plastic

• Pieces of glass

What happens when water passes through rock?

• It dissolves minerals and leaves behind tiny bits of clay

• It turns into ice

• It evaporates

• It becomes salty

Tags

NGSS.MS-ESS2-4

What is the role of decomposers in soil formation?

• They add nutrients and materials to the soil

• They remove nutrients from the soil

• They make the soil dry

• They make the soil hard

Tags

NGSS.MS-LS2-3

What can darker soil indicate?

• More plant or animal remains

• Less plant or animal remains

• More water

• More sand

Tags

NGSS.MS-LS1-5

What is clay a part of?

• Many kinds of soil

• Only sandy soil

• Only rocky soil

• Only wet soil