rocks and minerals

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

• Sedimentary rocks
• Metamorphic rocks
• Igneous Rocks

How do sedimentary rock form?

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

• Talc
• Gypsum
• Talc and Gypsum
• Fluorite

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

• feldspar
• calcite
• talc
• quartz

Using the Mohs Hardness Scale (click the text to see the Scale), name two minerals harder than Fluorite.

• Talc and Calcite
• Gypsum and Quartz
• Quartz and Feldspar
• Diamond and Talc

• luster
• streak
• scratch
• hardness

Which of the these is made from rocks and minerals?

• slippers

• eraser

• wooden box

• stone vase

• Gold
• Hematite
• Pyrite
• Galena

• Gold
• Hematite
• Pyrite
• Galena

What two properties are most helpful for identifying minerals?

• luster and streak

• color and size

• shape and hardness

• color and hardness