Crystals

Which of the following is true of all crystals?

• They all have at least some properties of solids

• They can be made into jewelry

• They are all found in caves

• They are all made from carbon

Which of the following household products is a crystal?

• Water

• Dish Soap

• Pepper

• Sugar

What is a crystal lattice?

• A type of rock formation in which crystals can be found

• An ordered, repeating pattern of molecules

• A collection of different types of crystals

• A grouping of molecules with a shifting structure

If you wanted to find liquid crystals, where would you look?

• In caves

• In electronic devices

• In a medicine cabinet

• In a kitchen

What can you conclude about a quartz crystal that is purple in color?

• It contains a lot of limestone

• It contains a lot of carbon

• It contains a lot of iron

• It contains a lot of lead

How do crystals grow? Choose the best answer.

• New bonds form between the crystal's atoms

• Water in the environment "inflates" the crystal

• The cells of the crystal divide

• New atoms join the crystal lattice

Which term describes the physical structure of all crystals?

• Geometric

• Random

• Liquid

• Carbon-based

What is the process by which crystals tend to break along certain planes?

• Fracture

• Cleavage

• Faulting

• Derision

How do scientists use x-rays to study crystals?

• To get detailed images of a crystal

• To break open rocks that may contain crystals

• To detect crystals within rocks

• To change the structure of a crystal

How are crystals grouped?

• According to their sizes

• According to the elements that make them up

• According to their colors

• According to the shapes of their crystal lattice