Gr2 topic4 revision for 2nd term final exam

   People change land by -----------------.

• building dam on river to stop flood

• cutting down trees to build houses

  --------------- grow in the cracks of rocks, they can break the rocks into pieces.

• Roots

• Leaves

  ----------------- can be made of trees, bushes, or fences.

• Levee

• Windbreak

Volcano changes the land ---------------.

• quickly

• slowly

  People build ----------------- on rivers to stop floods.

• delta

• dam

  --------------- is a place where rivers flow into the ocean.

• Canyon

• Delta

What happened in the picture?

• Volcano

• Landslide

  ---------------- forms when layers of rock deep under the surface of Earth push together.

• Mountain

• Valley

---------------- happens when wind and water drop rock and soil in a new place.

• Weathering

• Deposition

----------------- happens when heavy rain falls for a long time.

• Flood

• Earthquake