Snowflakes

Snowflakes are clusters of:

• Ice crystals
• Raindrops
• Water vapor
• Dust and ice

If you wanted to watch snow crystals forming, where would you look?

• Inside clouds
• between clouds and the ground
• on the ground
• inside the ocean

If you wanted to watch snow crystals forming, where would you look?

• Inside clouds
• between clouds and the ground
• on the ground
• inside the ocean

How do the molecules of liquid water interact?

• They expand to fill whatever container they are in
• They are locked into a crystal lattice
• They move around freely
• They do not interact at all

What conditions form the most complex snowflakes?

• When the air is warm and the humidity is high
• When the air is warm and the humidity is low
• When the air is cold and the humidity is high
• When the air is cold and the humidity is low

Which of the following words is the best synonym for "lattice"?

• Collection
• Iciness
• Assortment
• Grid

What happens inside clouds when the temperature drops to -40 degrees Celsius?

• Water vapor condenses into liquid water
• Ice turns into water vapor
• Liquid water freezes into ice
• Water vapor turns directly into ice

As a snowflake falls to Earth, it undergoes a metamorphosis.  What type of metamorphosis (change) does it undergo?

• It changes color
• It grows and changes size and shape
• It loses its crystal lattice structure
• It melts into water

Which elements make up a water molecule?

• Hydrogen and oxygen
• Hydrogen and magnesium
• Oxygen and silver
• Hydrogen and carbon

If a snowflake forms around a dust particle, what can you conclude about the temperature at which it formed?

• Between 0 C and -40 C
• Lower than -40 C
• Higher than 0 C
• Between 0 and 40 C