Understanding Erosion with Bill Nye

What are the primary agents of erosion mentioned?

• Water, fire, and sand

• Fire, ice, and wind

• Ice, chemicals, and sand

• Water, ice, and chemicals

What happens when water flows over mineral salt?

• It turns into ice

• It has no effect

• It freezes immediately

• It carries some of the solid away

How does ice contribute to erosion?

• By expanding and splitting rocks

• By melting into water

• By providing habitat for lichens

• By cooling the environment

How does wind contribute to erosion?

• By watering plants

• By freezing the rocks

• By causing chemical reactions

• By carrying away particles of mountains

What is the effect of sand carried by wind on mountains?

• It erodes them over time

• It causes them to grow taller

• It polishes their surface

• It has no effect

What is an example of wind erosion?

• The creation of mushroom rocks

• The growth of trees

• The formation of sea stacks

• The rusting of metal

How does the presence of iron oxide indicate erosion?

• It shows the presence of water

• It indicates chemical erosion

• It signifies the absence of erosion

• It means the rock is expanding

How does chemical erosion affect metals?

• It has no effect

• It can cause rust and change their color

• It polishes them

• It causes them to expand

What is the effect of chemical erosion on the Statue of Liberty?

• It strengthens the structure

• It has no effect

• It turns the copper green

• It causes the statue to expand

How does water erosion shape landscapes?

• By carving canyons and valleys

• By drying out the soil

• By depositing new layers of rock

• By causing plants to grow