Thursday’s Warm Up December 5

A delta, the landform found at the mouth of a river, forms when- A plants on the river bank cause erosion B the river deposits sediments as it slows C rushing water makes stones in the river smooth D water flowing down the mountain makes it taller

Which of the following landforms is the result of a river carving out land by erosion? A Canyon B Sand dune C Delta D Mountain

Students used a fan to blow piles of sand Students used a fan to blow piles of sand. This best models which of the following natural processes that create changes to the land? A Weathering of rocks to make soil B Deposition of sediments to form deltas C Formation and movement of dunes D Carving out plains creating canyons

Several layers of sedimentary rock are illustrated Several layers of sedimentary rock are illustrated. They are in the same order as when they first formed. Which layer formed first? A Rock Layer W B Rock Layer X C Rock Layer Y D Rock Layer Z

Sedimentary rocks form when broken bits of other rock are deposited and then – A buried and squeezed and cemented together B melted by the heat of the earth’s core C completely dissolved in salt water in the ocean D used by humans as a natural resource