Earth's Changing Surface

What is the process that breaks down rock and other substances on Earth's surface called?

• Erosion

• Deposition

• Weathering

• Mass wasting

Which type of weathering physically breaks down rock into smaller pieces?

• Chemical weathering

• Mechanical weathering

• Biological weathering

• Natural weathering

What happens during ice wedging?

• Rocks are dissolved by acid rain

• Plants grow into rock cracks

• Water freezes and expands in rock cracks

• Wind blows particles against rocks

Tags

NGSS.MS-ESS2-2

Mason noticed that the metal parts of an old bicycle left outside had started to rust. Which is an example of chemical weathering?

• Tree roots growing into rocks

• Animals burrowing into soil

• Rocks breaking from freeze-thaw cycles

• Oxygen causing rust on iron-containing rocks

Tags

NGSS.MS-PS1-2

What is humus?

• A type of rock

• Underground water

• Dark-colored decayed organic material in soil

• A layer of clay

Tags

NGSS.MS-LS2-1

Aria is planning to start a small garden in her backyard. She wants to know which soil type is best for growing most plants. Can you help her choose the right soil?

• Sandy soil

• Clay soil

• Loam

• Silt soil

Tags

NGSS.MS-LS1-5

What is the top layer of soil called?

• Subsoil

• Bedrock

• C horizon

• Topsoil

Which farming practice involves plowing fields along the curves of a slope?

• Crop rotation

• Contour plowing

• Conservation plowing

• Traditional plowing

Tags

NGSS.MS-ETS1-1

During a hiking trip, Arjun noticed that the soil on the hillside was being washed away after a heavy rain. What is the main force responsible for this water erosion?

• Wind

• Gravity

• Temperature

• Pressure

Tags

NGSS.MS-ESS2-2

What forms when a river's meander is cut off from the main channel?

• Delta

• Tributary

• Oxbow lake

• Flood plain

Tags

NGSS.MS-ESS2-2