Weathering

Physical breaking down of rocks into smaller particles without changing the chemical composition of the rock.

• Weathering

• Physical Weathering

• Chemical Weathering

• Biological Weathering

The top layers of the rock is peeled like an onion.

• Oxidation

• Freeze-thaw

• Hydrolysis

• Exfoliation

Process whereby minerals or soluble chemicals in the rock dissolve directly in water.

• Solution Weathering

• Hydrolysis

• Oxidation

• Hydration

Process where rock minerals react with dissolved oxygen to produce red or yellow oxides or hydroxides. 

• Oxication

• Oxidyde

• Oxidenide

• Oxidation.

Which part of the river is this?

• Upper course

• Middle course

• Lower course

In what stage of the river is this picture?

• Upper course.

• Middle course

• Lower course

What is the starting point of a river called?

What type of rock is magma that cooled down?

What is the feature below the waterfall called?

• Rapids

• Plunge pool

• Pooling

• Swimming hole

When a river flows over ____ ____, it cannot cut through the rock.