Rocks and minerals

How do sedimentary rock form?

• by pressure of layers of sediment

• by heat from volcanos

• by heat and pressure deep underground

• deep below earth's surface

What type of rock is formed from melted materials that cook and then harden?

• Sedimentary rocks

• Metamorphic rocks

• Igneous Rocks

• Classic rock

What mineral can be identified by bubbles when tested in vinegar?

• feldspar
• calcite
• talc
• quartz

What type of rock is pictured?

• Igneous

• Metamorphic

• Sedimentary

• Punk

What are the three types of rocks?

• lava, metamorphic, and sedimentary

• igneous, sedimentary, and barley

• metamorphic, secondary, and igneous

• igneous, sedimentary, and metamorphic

What mineral has the lowest hardness?

• quartz (7)

• mica (2)

• feldspar (6)

• talc (1)

What was the purpose of the scratch test?

• to find if the rock contained calcite

• to find the hardness of the mineral

• to find the color

• to help an itch

What properties are most helpful for identifying minerals?

• luster and streak

• color and size

• shape and hardness

• color and shape

A rock is...

• usually made of 2 or more minerals

• something found in nature

• solid

• all answers

A mineral is...

• solid material made from many different kinds of rocks

• a solid, naturally occurring and found in inorganic

• made from layers of sediment

• formed from heat of magma