Real Chalk Quiz

Which of the following is a description of real chalk?

• Hard, black, igneous rock composed of basalt.

• Rough, brown, sedimentary rock composed of feldspar.

• Smooth, yellow, metamorphic rock composed of quartz.

• Soft, white, porous limestone composed of calcite.

What were the uses of real chalk once upon a time?

• Writing or drawing on whiteboards

• Creating sidewalk art

• Writing or drawing on chalkboards or blackboards

• Decorating cakes

What is the chemical composition of real chalk?

• Calcium carbonate (CaCO₃)

• Sodium bicarbonate (NaHCO₃)

• Magnesium carbonate (MgCO₃)

• Calcium sulfate (CaSO₄)

Real chalk is not only used for writing but also has other industrial applications. Which of the following is NOT a common use of real chalk?

• Agriculture

• Construction

• Cosmetics

• Space Exploration

Which of the following is a property of real chalk?

• Water-soluble

• Transparent

• Flammable

• Magnetic

True or False: Real chalk is primarily composed of calcium carbonate.

• True

• False, real chalk is made of calcium sulfate

• False, real chalk is made of antioxidants

• False, real chalk is made of plastic

What is the common name for calcium sulfate chalk often used for creating sidewalk art?

• Plaster of Paris

• Gypsum

• Chalkboard Chalk

• Sidewalk Chalk

The White Cliffs of Dover, famous for their chalk formations, are located in which country?

• France

• England

• Italy

• Australia

Real chalk "forms under deep-marine conditions from the gradual accumulation of minute calcite shells shed from micro-algae known as..."

• Diatoms

• Foraminifera

• Radiolarians

• Coccolithophores

What geologist named the Cretaceous Period after the Latin word creta, meaning chalk?

• Thomas Henry Huxley

• Dael Wolfe

• Jean-Baptiste-Julien D'Omalius D'Halloy

• Hubert Blaine Wolfeschlegelsteinhausenbergerdoff Sr.