Vocabulary 1
Vocabulary 2
Molecules
Changing States
All About Water
100
Atoms
The smallest particle of matter
100
The process of gas becoming a liquid
Condensation
100
What does it mean if a molecule is polar?
The molecule is charged, with one end that is positive and one end that is negative.
100
At what temperature does solid water (ice) melt to liquid water?
0oC (32oF)
100
What is unique about water's three states of matter (solid, liquid, and gas)?
Liquid water is the most dense (packed together), not solid. This is the opposite of other substances, which are the most packed together in the solid state.
All states can be found at the same time here on Earth.
200
Molecules
A group of atoms bonded together
200
The process of liquid becoming a gas
Evaporation
200
What type of molecule has two hydrogen atoms and one oxygen atom?
A water molecule
200
What happens to water when it is heated to 100oC?
The water evaporates and becomes water vapor.
200
What states of water can be found on Earth?
All states of water can be found on Earth - solid, liquid, and gas.
DOUBLE JEOPARDY!
Name an example for each state of water on Earth.
300
Matter
Anything that has mass and takes up space
300
What state of matter has a fixed shape and volume?
Solid
300
How does being a polar molecule affect water?
The water molecules stick together like magnets.
300
What happens when liquid water is cooled to 0oC?
The liquid water freezes to a solid (ice).
300
What two things can you do to this state of water to change it?
1. Heat it up to melt it.
2. Increase pressure
400
Volume
The amount of space matter occupies
400
What state of matter has a no fixed volume or shape, and expands to fill the space it is in?
Gas
400
What is H2O?
Water. Two hydrogen atoms (H2) and one oxygen atom (O).
400
How does the movement of the water molecules change when they are heated to 100oC (212oF)?
The molecules start moving faster and they are more spaced out.
400
What two things can you do to this state of water to change it?
1. Cool it down
2. Increase pressure
500
Mass
How much matter is in something
500
What state of matter has a constant volume, and flows freely, taking the shape of the container it is in?
Liquid
500
What are atoms that are bonded together called?
Molecules
500
What do these images show, in order?
Water molecules in the solid, liquid, and gas state.
DOUBLE JEOPARDY!
Explain what is happening in images.
500
What two things can you do to this state of water to change it?
1. Heat it up to turn it into water vapor
2. Cool it down to turn it into solid ice