Earth's Crust and Rocks Quiz

What is Earth's crust primarily made of?

• Soil and organic matter

• Water and ice

• Rocks

• Metal and minerals

Where can you find rocks according to the text?

• Only under the ground

• Only in museums

• All around and under you

• Exclusively in mountainous regions

What are pebbles in a streambed described as?

• Sharp, jagged rocks

• Smooth, rounded rocks

• Polished stones

• Chunky bits of broken rock

What are some uses of rocks mentioned in the text?

• Making furniture and appliances

• Building spacecraft and vehicles

• Creating sidewalks and streets

• Crafting electronic devices

What do artists use rocks for, as mentioned in the text?

• To build tools

• To carve into sculptures

• To make musical instruments

• To construct buildings

What is a common use for polished stones?

• To enhance the taste of food

• To be worn as jewelry

• To be used as currency

• To serve as paperweights

What are rocks made of?

• Organic materials

• Minerals

• Water

• Gases

How many basic classes of rocks do geologists organize rocks into?

• Two

• Three

• Four

• Five

What gives rocks a smooth, even texture?

• Large mineral grains

• Tiny mineral grains

• The color of the rocks

• The weight of the rocks

Which of the following is NOT one of the three basic types of rocks?

• Igneous

• Sedimentary

• Metamorphic

• Elastic