Rocks and Minerals

How do sedimentary rock form?

• by pressure of layers of sediment
• by heat from volcanos
• by heat and pressure deep underground

The property of luster means..

• the hardness of a mineral
• the color of the mineral
• the streak the mineral leaves
• how the mineral reflects light

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

• Sedimentary rocks
• Metamorphic rocks
• Igneous Rocks

Hardness, color, and luster are examples of a mineral's ___________.

• price
• weight
• property
• name

What are the three types of rocks?

• lava, metamorphic, and sedimentary
• igneous, sedimentary, and mineral
• metamorphic, lava, and igneous
• igneous, sedimentary, and metamorphic

A geologist is a scientist who studies_______.

• plants and animals
• fossils
• rocks and minerals
• ocean animals

What mineral is the softest?

• 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

What properties are most helpful for identifying minerals?

• luster and streak
• color and size
• shape and hardness
• color and hardness

A rock is...

• made of 2 or more minerals
• something found in nature
• something that can be broken with a hammer or chisel
• all answers