Weathering and Erosion

Erosion is:

• the break down of rocks
• the movement of soil and rocks
• the shaping of rocks
• throwing rocks into water

What is physical weathering?

• When you throw something at something else
• When something is broken down into something smaller without changing its chemical composition.
• When something is broken down into something smaller by changing its chemical composition.
  
• When you push something into water

Weathering is: 

• the movement of soil and rocks
• when you stick rocks and sticks together to build a house
• when you eat dirt to not be hungry
• the action of the weather conditions in altering the color, texture, composition, or form of exposed objects

What is chemical weathering?

• When something is pushed into the water
• When something is broken down into something smaller by changing its chemical composition.
  
• When you throw something at something else
• When something is broken down into something smaller without changing its chemical composition.

An example of chemical weathering is when saliva breaks down your food.

• True
• False

An example of chemical weathering is when your teeth chew up your food.

• True
• False

An example of physical weathering is which of the following?

• Chewing a cookie
• Your saliva breaking food down
• Rust on an old bike

An example of physical weathering is when the acid in your stomach breaks down the food.

• True
• False

Is this an example of physical or chemical weathering?

• Physical
• Chemical

Is this an example of physical or chemical weathering?

• Physical 
• Chemical