Mechanical Weathering

Mechanical weathering refers to:

• The process of rocks changing shape due to heat

• The process of rocks breaking down into smaller pieces

• The process of rocks transforming into different minerals

• The process of rocks growing larger over time

Tags

NGSS.MS-ESS2-2

How does water contribute to mechanical weathering?

• By dissolving rocks

• By freezing and expanding in cracks

• By melting rocks with its high temperature

• ) By creating earthquakes that break rocks

Tags

NGSS.MS-ESS2-2

Which of the following is an example of mechanical weathering caused by wind?

• Rocks melting under the sun

• Rocks breaking apart due to volcanic activity

• Rocks slowly getting worn down by tiny sand particles hitting them again and again.

• Rocks changing color due to pollution

How do plants contribute to mechanical weathering?

• By releasing chemicals that dissolve rocks

• By digging tunnels through rocks

• By exerting pressure on rocks as they grow

• By reflecting sunlight onto rocks

How do animals contribute to mechanical weathering?

• By scratching rocks with their claws

• By secreting acids that dissolve rocks

• By burrowing and moving rocks

• By blowing winds that erode rocks

Tags

NGSS.MS-LS2-3

How does a wildfire impact rocks in a forest?

• It causes rocks to shrink and become smoother

• It creates cracks and stress in the rocks

• It changes the color of the rocks

• It triggers the growth of plants on the rocks

Tags

NGSS.MS-ESS2-2

How does gardening contribute to the weathering of rocks in a garden?

• By using chemicals to dissolve the rocks

• By burying the rocks underground

• By causing rocks to change shape

• By impacting and breaking the rocks with a shovel

Tags

NGSS.MS-ESS2-2

In the desert, a rocky cliff is slowly worn away by:

• Rainfall eroding the surface

• Tiny particles of sand hitting it during sandstorms

• Freezing temperatures causing cracks

• Animal burrowing activities

Tags

NGSS.MS-ESS2-2

What causes rocks to break apart at the coast?

• Strong winds blowing against them

• Plant roots pushing against them

• Waves crashing into them

• Human construction activities

Tags

NGSS.MS-ESS2-2

What contributes to the wearing down of rocks in rivers?

• Sandstorms hitting them repeatedly

• Freezing temperatures expanding the rocks

• Friction and rubbing action between rocks

• Human construction activities nearby

Tags

NGSS.MS-ESS2-2