Grand Canyon

How many gallons of water flows down the Colorado River every hour

• 1 millon

• 800 million

• 10 million

• 8 million

What Causes the red color in the rocks?

• Dirt

• Rain and water

• Rust from Iron

• Animals

How many years ago did the Colorado River arrive in the Grand Canyon?

• 5.5 million

• 10 million

• 10 Thousand

• 500 Thousand

Where do green lake clays form?

• Shallow water

• Deep water

• No water

• Salt water

How wide is the widest part of the Grand Canyon

• 1 mile

• 100 miles

• 10 miles

• 18 miles

What caused the black rock?

• Mud

• Lava Flow

• Rain

• Animals