Earth Materials Unit Review

Igneous rocks are formed when ________.

• pressure from the ocean creates them.

• pieces break off of glaciers.

• hot magma cools and turns into crystals.

• people dig them up in their gardens.

Look at the chart.  If you walk into your house with clumps of wet dirt stuck to the bottom of your shoe, which kind of soil have you probably been walking through?

• clay
• sand
• silt
• loose pebbles

Looking at this chart, which of the minerals is the softest?

• Calcite
• Feldspar
• Mica
• Talc

Which group of rocks is correctly labeled?

• 
• 
• 
• 

Susie finds a rock that contains pieces of animal shells, leaves, and even a shark's tooth.  Which type of rock did Susie find?

• igneous
• sedimentary
• metamorphic
• crystal

Which mineral is the hardest mineral?

• quartz
• diamond
• gypsum
• calcite

Looking at this chart, which of the minerals is the softest?

• Calcite
• Feldspar
• Mica
• Talc

What is a lake?

• A body of water with land all around it.
• A body of water that surrounds a continent.
• A body of water that flows into rivers.
• A body of water that flows into the sea or ocean.

What is DIFFERENT about the water found in a glacier and the water found in a river?

• A river has saltwater.
• The water in the glacier is frozen.
• The glacier starts with melting snow.
• Glaciers usually flow into the ocean.

Looking at this picture, what type of landform is Landform B?

• valley

• cavern

• mountain

• island