Limestone

What is the chemical formula of...limestone?

• limestone

• CaCO3

• MgCO3

• NAHCO3

What type of rock is limestone?

• lime

• non-porous

• sedimentary

• physical

What evidence is there that limestone is this type of rock?

• made of soil

• made of fossils/sediments

• made of salt

• made of carbon dioxide

Which two of these statements is correct?

• limestone is Crystalline

• limestone is porous

• limestone is living

• limestone is fragmental

Where can limestone be formed?

• cold,deep and dim water

• hot,very deep and clear water

• warm,shallow and clear water

• normal shallow water

Which of these is a form of limestone

• chalk

• slate

• granite

• soil

How is chalk formed?

• hard bits of sea creatures get compressed

• soft bits of sea creatures get compressed

• smooth bits of sea creatures get compressed

• rough bits of sea creatures get compressed

How is reef limestone formed?

• shell

• coral

• algal

• fecal debris

• all of above