Science SA Reviewer 4.1

The process by which rocks and other surfaces are broken down.

• Weathering

• Erosion

The process by which rocks, soil, and other weathered earth materials are moved from one place to another.

• Weathering

• Erosion

This can cause mechanical weathering of rocks.

• Landslide

• Decayed material

• Acid rain

• Rust

True or False. Igneous rocks are formed by cooling of lava.

• True

• False

Decaying plants in rocks causes deformation

• Mechanical weathering

• Chemical weathering

Science that deals with the history and physical structure of earth is called __________.

• Astronomy

• Cosmology

• Geology

• Chemistry

These are fragments of rocks resulting from erosion or weathering.

• sedimentary

• igneous

• metamorphic

• sediment

True or False. By strong earthquakes, molten rock finds its way through earth’s surface.

• True

• False

Answer explanation

Molten rock or magma finds its way through the earth's surface by volcanic eruptions, not earthquakes.

Running water moves rocks and smaller fragments that bump each other and scratch bigger boulder.

• Mechanical weathering

• Chemical weathering

Molten rocks, also called as_________ are found inside earth.

• lava

• magma

• mudflows

• lahar