Melting Moments
Frozen Facts
Evaporation Explanation
Cool Condensation
Matter Mix-up
100
What is it called when ice turns into water?
Melting
100
When water turns into ice, what process is happening?
Freezing
100
What is the process called when a liquid becomes a gas?
Evaporation
100
What is condensation?
Gas turning into a liquid
100
What are the three main states of matter?
Solid, Liquid, and Gas
200
What happens to the speed of molecules when a solid melts?
They move faster
200
Freezing happens when heat is...
added or taken away?
Taken away
200
What provides the energy for a puddle to evaporate?
The sun (heat energy)
200
What forms on the outside of a cold soda can on a hot summer day?
Condensed water droplets.
200
What state of matter has a definite shape and volume?
Solid
300
True or False:
Melting removes heat from an object
False
Heat is added.
In order to melt something you must add heat
300
True or false: Water freezes faster in warm air
False
300
True or False: Evaporation happens only when water boils.
False-
It can happen at any temperature
300
Name a place you might see condensation in nature.
Examples:
Fog on a car window on a chilly morning
Foggy bathroom mirror after a hot shower
Dew on the grass in the morning
300
How does heat affect the movement of molecules?
They move faster as heat increases
400
Name one example of melting you might see at home.
400
What state of matter does water become after freezing?
Solid
400
Why does wet clothing dry faster on a hot, windy day?
The combination of heat and wind speeds up evaporation.
Because both factors are present, the rate of evaporation is significantly higher than on a still or cold day.
400
Condensation happens when air (gains or loses heat)?
Loses heat
400
Which two processes require heat to be added?
Melting and evaporation
500
Describe what happens to the molecules in a solid as it melts.
They will move faster and spread apart.
500
Explain what happens to the motion of water molecules as they freeze.
They slow down and move closer together.
Because they go from a liquid state to a solid state.
500
Describe how evaporation helps form clouds.
Converting liquid water into water vapor, which then rises into the atmosphere, which then creates the clouds in our sky.
500
Explain how condensation is the opposite of evaporation.
Condensation removes heat and turns gas into liquid, while evaporation adds heat and turns liquid into gas.
500
Explain how adding or removing heat can cause matter to change between all THREE states
Adding heat causes a solid to melt into a liquid, and more heat makes the liquid evaporate into a gas. Removing heat makes a gas condense into a liquid and further cooling freezes it into a solid.