Rocks

Rocks are made of

• Minerals and other organic materials
• Glass and paper
• Plastic and metal
• Water and air

Tags

NGSS.MS-ESS3-1

Tiny rocks are called

• boulders
• gravel
• pebbles
• sand

The three types of rocks are

• volcanic, limestone, and marble
• granite, shale, and sandstone
• quartz, basalt, and slate
• igneous, sedimentary, and metamorphic

Sedimentary rocks are formed by

• tiny materials such as salt and pebbles

• freezing of magma
• evaporation of water
• volcanic eruptions

Sandstone is a type of

• metamorphic rock
• sedimentary rock
• igneous rock
• volcanic rock

What is the hot liquid deep inside the Earth?

• lava
• steam
• molten rock
• magma

Metamorphic rocks are formed by

• heat and pressure

• sedimentation
• weathering
• volcanic eruptions