Is the plant where we live on

• earth

• mars

• Saturn

Earth’s surface is the _________ of the Earth.

• inside

• outside

Is a process that breaks rock into smaller pieces

• Weathering

• Erosion

• Deposition

Changes on earth's surface happen _____

• slowly

• quickly

• slowly and quickly

Wind-blown sand can make rocks ----------. 

                                  

• Stronger

• bigger

• weaker

When the water freezes in the rocks cracks. Ice takes up ________ than water  

• more space

• less space

• same space

the picture shows __________

• Weathering by wind

• Weathering by water

• Erosion by wind

What does the picture shows?

• Weathering by wind

• Weathering by plants roots

• Weathering by water and ice

Weathering  is a process that _______ rocks.

• break

• move

• carry

In winter the water in the cracks turns to_____________.

• ice

• sand

• rocks

• cracks