WEATHERING AND EROSION

CHEMICAL WEATHERING

• Chemical weathering occurs when rock is broken
• Down into a new substance by water or elements in the air
• An example would be sand

PHYSICAL WEATHERING

• Physical weathering is when a rock's shape or size is changed
• But it is still the same substance
• An example would be boulders turning into pebbles

WATER EROSION

• Water erosion occurs when a stream of water picks up sediment
• And moves it down stream. The amount and distance that the sediment is
• Moved depends on the force of the stream
• Examples of water erosion would be murky rivers or deltas

WIND EROSION

• Wind erosion is what happens when wind picks sediment off rock,
• Mountains, the ground, etc., and transports it somewhere else, similarly as water does.
• An example would be sand dunes

GLACIAL EROSION

• Glacial erosion occurs when a glacier very slowly changes the
• Environment around it by moving
• An example would be a valley in cold climate regions