Exploring Chemical and Biological Sedimentary Rocks

What are the two main types of sedimentary rocks?

• Igneous and Metamorphic

• Organic and Inorganic

• Clastic and Chemical/Biological

• Volcanic and Plutonic

Which mineral is the primary constituent of limestone?

• Calcium Carbonate

• Feldspar

• Quartz

• Magnesium

Tags

NGSS.MS-PS1-1

What is the main difference between limestone and dolomite?

• Limestone is softer and contains no magnesium

• Dolomite is softer and contains no magnesium

• Limestone is harder and contains magnesium

• Dolomite is harder and contains magnesium

What forms stalactites and stalagmites in caves?

• Deposition of sand

• Erosion by wind

• Chemical precipitation of minerals

• Evaporation of water

Tags

NGSS.MS-PS1-2

What happens when carbonate minerals react with acids?

• They change color

• They dissolve

• They form new minerals

• They become harder

Tags

NGSS.MS-PS1-2

What type of sedimentary rock is formed from evaporite minerals?

• Dolomite

• Coal

• Limestone

• Rock Salt

Which of the following is a biological sedimentary rock?

• Gypsum

• Rock Salt

• Coal

• Quartz

What is CH in the context of sedimentary rocks?

• Carbonate

• Silica or Quartz

• Calcium Hydroxide

• Magnesium

Why is silica gel used in food packaging?

• To add flavor

• As a preservative and anti-caking agent

• To enhance color

• To increase shelf life

What did Native Americans use CH nodules for?

• Making flint or arrowheads

• Cooking utensils

• Jewelry

• Building materials