Crystals

What is a crystal?

• A pure material that can’t be changed.

• Material with a regular,repeating arrangement of atoms.

• A foggy like material.

Which is NOT an example of a crystal found in nature

• rock salt

• diamonds

• snowflakes

• cataracts

• leaves

Which of the following is a way that crystals can form in nature?

• When liquids cool and start to harden.

• When magma cools.

• When water evaporates from a mixture.

• All of the above.

Tags

NGSS.MS-PS1-4

What state or phase of material are crystals?

• Gas

• Plasma

• Liquid

• Solid

Which of the following best describes a crystal?

• Molecules fit together in a random pattern.

• Molecules fit together in a repeating pattern.

What is crystallization?

• When crystals dissolve in a solution.

• When crystals melt into liquid.

• The formation of crystals

What type of crystals are formed in clouds when water freezes?

• Snowflakes

• Raindrops

• Rubies

• Emeralds

A valuable, rare mineral

• ore
• gem
• rock
• bling

Tags

NGSS.MS-ESS3-1

A naturally occurring, inorganic solid

• mineral
• rock
• coal
• magma

Tags

NGSS.MS-ESS3-1

How light is reflected off a mineral

• streak
• color
• luster
• fracture

Tags

NGSS.MS-PS4-2