River Revolution! - Ruby

What is the source of a river?

• Where the river starts its journey, usually in high places

• Where the river ends its journey by joining an ocean, sea or large lake

• Where the river looks red, like tomato sauce

• Where the river starts its journey from the sea and travels upwards

What is the mouth of a river?

• Where the river starts its journey, usually in high places

• Where the river ends its journey by joining an ocean, sea or large lake

• The widest part of a river

• Where the river 'eats' the surrounding land

The Colorado river is on the continent of ​ ​ ​ (a)  

• North America
• Europe
• Africa
• South America
• Antarctica
• Australasia
• Asia

Where is the source of the Amazon River?

• Mediterranean Sea

• Caspian Sea

• Himalayas Mountains

• Andes Mountains

Where is the mouth of the Nile River?

• Mediterranean Sea

• Caspian Sea

• Himalayas Mountains

• Andes Mountains

Match the following erosion processes:

• hydraulic action

• rocks dissolve over time

• solution

• rocks collide and break up

• abrasion

• rocks are eroded by "water power"

• attrition

• rocks wear away each other and the riverbed and the banks

Match the following transportation processes:

• suspension

• pebbles bounce along the river bed like jumping beans

• solution

• the smallest sediment is dissolved into the water

• traction

• small sediment is carried along in the flow of the river

• saltation

• large rocks are rolled along the river bed

When a river is travelling fast it has ​ (a)   energy

• more
• less
• double
• water

Where does erosion happen?

• on the inside of the river bend where water travels faster

• on the inside of the river bend where water travels slower

• on the outside of the river bend where water travels faster

• on the outside of the river bend where water travels slower

What effect does vertical erosion have on a valley?

• It makes it deeper

• It makes it wider