The Grand Canyon and Erosion

What is a canyon?

• A tall mountain

• A flowing river

• A deep gorge or gully

• A wide beach

Tags

CCSS.RI.4.5

CCSS.RI.5.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

How long is the Grand Canyon?

• 600 kilometers

• 450 kilometers

• 100 kilometers

• 200 kilometers

What river carved the Grand Canyon?

• Mississippi River

• Amazon River

• Nile River

• Colorado River

What is the process called when dirt and rock are moved from one place to another?

• Erosion

• Earthquake

• Volcano

• Tsunami

What can speed up the erosion process?

• A sunny day

• A flood

• A snowstorm

• A drought

What makes the Grand Canyon wider?

• Snow

• Sunlight

• Rainwater

• Wind

How wide is the Grand Canyon at its widest point?

• 10 kilometers

• 20 kilometers

• 30 kilometers

• 40 kilometers

How long ago did the Grand Canyon start forming?

• 5 to 6 million years ago

• 3 to 4 million years ago

• 1 to 2 million years ago

• 7 to 8 million years ago

What happens when you see a river full of muddy water?

• It's a sign of erosion

• It's a sign of pollution

• It's a sign of drought

• It's a sign of a storm

Tags

CCSS.RI.4.1

CCSS.RI.5.1

CCSS.RL.4.1

CCSS.RL.5.1

CCSS.RL.6.1

Is the Grand Canyon still growing?

• Yes, because of earthquakes

• No, it stopped growing

• Yes, because of ongoing erosion

• No, it is shrinking