In what forms can calcium carbonate be found?

• Only as a liquid

• Only as a gas

• Various forms, colors, and textures

• Only as a powder

Which of the following is NOT a form of calcium carbonate?

• Calcite

• Limestone

• Plastic

• Marble

Calcium carbonate is commonly found in which type of rock?

• Granite

• Limestone

• Sandstone

• Basalt

What is a common use of marble, a form of calcium carbonate?

• Building material

• Fuel

• Food ingredient

• Textile

Which of the following is a marine organism that uses calcium carbonate?

• Fish

• Coral

• Jellyfish

• Seaweed

Which of these is a form of calcium carbonate used in art?

• Chalk

• Ink

• Paint

• Clay

Which of these is a property of calcium carbonate?

• Magnetic

• Non-magnetic

• Radioactive

• Transparent

What does the reactivity series of metals show?

• The order of metals based on their color

• The order of metals based on their weight

• The order of metals based on their reactivity with oxygen

• The order of metals based on their melting point

Which metal is more reactive with oxygen, Calcium (Ca) or Magnesium (Mg)?

• Calcium (Ca)

• Magnesium (Mg)

• Both are equally reactive

• Neither is reactive

Which metal is more reactive with oxygen, Iron (Fe) or Tin (Sn)?

• Iron (Fe)

• Tin (Sn)

• Both are equally reactive

• Neither is reactive