Show:
State Changes
Water
Tools
Real Life
Just for Fun
100
A liquid to a solid
Freezing
100
If water drops below 0 degrees Celsius, what does it turn into?
Ice
100
What tool is used to measure temperature?
Thermometer
100
If there are puddles of water on the ground, and the temperature drops below 0 degrees Celsius, what will happen to the puddles?
They will freeze
100
Why can't you trust matter?
It makes up everything!
200
A solid to a liquid
Melting
200
If water is heated more than 100 degrees Celsius, what happens to it?
It boils or evaporates
200
What tool is used to measure mass?
Balance or scale
200
Why do people cover their plants when the temperature drops below 0?
The water inside the plants will freeze
200
What did the glass of water say to the ice cube?
"I was water before it was cool."
300
A liquid to a gas
Evaporation
300
Once water evaporates and turns into a gas, can it ever be water again?
Yes, it could condense back into water
300
What are two ways to measure volume?
Ruler and water displacement
300
In a chemical change, can the matter ever turn back into what it was originally?
No
300
Why is the letter t like an island?
Because it's in the middle of water!
400
A gas to a liquid
Condensation
400

If something is dissolved in water, is that a physical or a chemical change?

Physical (unless it reacts chemically)

400
Density means how far apart the ____________ are in an object.
molecules
400
Why is cooking a pizza a chemical change?
It cannot be turned back into its original parts
400
The Mississippi River flows in which state?
Liquid state!
500
Clouds are formed during which change in matter?
Condensation
500
Is evaporation of water a chemical or a physical change?
Physical
500
What is the formula to measure density?
d=m/v
500
If you can walk through water, how does it hold you up when you are swimming or floating?
Water is dense enough to support you if you're spread out
500
What always runs but never walks?
Water!