Rocks and Minerals

This rock is formed when magma underneath Earth's surface or lava above the surface cools and becomes hard.

• Sedimentary Rock

• Fire Rock

• Igneous Rock

• Metamorphic Rock

Geologists use this tool to test the hardness of different types of minerals.

• Hammer & Chisel

• Mohs Hardness Scale

• The rock cycle

• Gravity

When identifying a mineral geologists determine if it is shiny or dull.

• Ooooh, pretty

• Moh's Hardness Scale

• Luster

• Weathering and Erosion

Sediment from erosion and weathering settles in lakes, river and oceans. Over time it compresses and compacts to form a rock.

• Sedimentary Rock

• Igneous Rock

• Talc

• The Rock Cycle

This is the softest mineral

• Igneous Rock

• Metamorphic Rock

• Talc

• Sedimentary Rock

Rocks continue to change over millions of years into different types of rocks.

• The Rock Cycle

• Luster

• Metamorphic Rock

• Rock N

  Roll

Existing rocks change through heat and pressure into a new type of rock.

• The Rock Cycle

• Weathering & erosion

• Igneous Rock

• Metamorphic Rock

Wind and water often change rocks and other parts of Earth's surface

• Weathering & Erosion

• Metamorphic Rock

• Sedimentary Rock

• The Rock Cycle

Rocks are made up of minerals

• False

• True

Scientists who study rocks are called geographers

• True

• False