| Matter | State changes | Heat / Energy |
|---|---|---|
|
Solid
What state of matter is a book?
|
Freezing
Placing water in an ice cube tray and leaving it in the freezer is an example of what state change?
|
Melting
When we add heat to a solid, what state change happens?
|
|
Gas
What state of matter is our breath?
|
Melting
An ice cream cone begins to drip on your hands in the hot sun. This is an example of what state change?
|
Evaporation
When we add heat to a liquid, what state change happens?
|
|
Liquid
What state of matter are the clouds?
|
Condensation
Water droplets on your car in the morning is an example of what state changes?
|
100 degrees
What temperature (Celsius) does water have to reach in order to evaporate?
|
|
Not an example of matter
What state of matter is our shadow?
|
Evaporation
If we boil water on the stove and forget about it, eventually all the water in the pot will disappear. What state change is this?
|
0 degrees
What temperature (Celsius) does water have to reach in order to freeze?
|
|
Trick question! We have all three states of matter in our bodies!
What state of matter is a human body?
|
Water condenses in the air as clouds; when enough water has condensed it falls down as rain. Rain pools together and begins to evaporate if the temperature is warm enough. The evaporated water condenses as clouds.
The water cycle is an example of continuous state changes. Describe it.
|
Adding energy causes the particles to move more, spreading them out. Removing energy causes them to move closer together.
Why does adding and removing energy cause matter to change state?
|
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