Making Snowflakes Quiz

What conditions are necessary for snowflakes to form?

• Hot air and high humidity

• Cold air and low humidity

• Warm air and high humidity

• Cold air and high humidity

What is needed for water droplets to freeze and form a snowflake?

• A warm temperature

• A high concentration of water vapor

• A solid object to attach to

• A hexagonal structure

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the shape of most ice crystals?

• Circle

• Square

• Triangle

• Hexagon

Why do snowflakes have six sides?

• Because of the shape of snowflakes

• Because of the shape of clouds

• Because of the shape of ice crystals

• Because of the shape of water molecules

What happens to the density of water when it freezes into ice?

• It depends on the temperature

• It stays the same

• It increases

• It decreases

Tags

NGSS.MS-PS1-4

What did Wilson Alwyn Bentley do in 1885?

• Invented a microscope

• Built a snowflake camera

• Discovered the structure of snowflakes

• Photographed snowflakes

What is rime ice?

• Ice that forms on subfreezing surfaces

• Ice that forms on liquid surfaces

• Ice that forms on warm surfaces

• Ice that forms on cold surfaces

What is the main factor that determines the shape of a snowflake?

• The temperature of the air

• The size of the cloud

• The speed of crystallization

• The type of nucleus

What is supersaturation?

• When there is too much water in the air

• When the air temperature is extremely hot

• When the air temperature is extremely cold

• When there is too little water in the air

Tags

NGSS.MS-ESS2-4

What is the purpose of a nucleus in the formation of a snowflake?

• To increase the density of the snowflake

• To provide a solid object for water droplets to freeze onto

• To prevent the snowflake from melting

• To create a hexagonal structure

Tags

NGSS.MS-PS3-4