Show:
States of Matter
Particles
Gas Laws
Phase Change
Randomness
100

What are the 3 common states of matter?

solid, liquid, gas

100

What state of matter has the most kinetic energy?

Gas

100

What happens to the volume of a balloon when you decrease the temperature at a constant pressure?

When the temperature is decreased, the volume decreases.

100

What phase change occurs when a liquid gains thermal energy?

Vaporization (liquid to gas)

100

Identify a liquid with a high viscosity.

Maple syrup molasses corn syrup honey

200

What state of matter has a definite volume, but no definite shape?

liquid

200

What is all matter made up of?

Atoms

200
When you increase the pressure, what happens to the volume at a constant temperature?
When you increase the pressure, the volume decreases.
200

What phase change occurs when a liquid loses thermal energy?

Freezing

200

What happened to the marshmallow when we decreased the pressure in the jar?

The marshmallow increased in size due to the air inside it expanding in volume.

300

A glass of soda has all 3 states of matter represented. Identify what would represent each state of matter.

solid=ice (or glass) liquid=soda gas=CO2 bubbles

300

What happens to the particles during condensation?

Gas particles lose thermal energy and slow down and compact together until they become a liquid.

300
Explain the relationship between temperature and volume when the pressure is constant.
As the temperature increases, the volume increases. As the temperature decreases, the volume decreases.
300

What is happening to the temperature of a substance during a phase change?

The temperature stays the same until all the substance has changed state. The thermal energy is being used to break the bonds between all the particles.

300

Why is the boiling point lower in Denver, CO than it is here?

Boiling point is dependent on a number of factors, including air pressure. Since Denver has a lower air pressure, it takes less energy for the particles to phase change from a liquid to a gas.

400

What state of matter has the fastest moving particles? the slowest moving particles?

fastest=gas slowest=solid

400

Which state of matter has the least kinetic energy?

solid

400
Use your knowledge of gas laws to explain why tractor trailer tires have blow outs.
As the tires heat up, the temperature increases, which causes the pressure inside the tire to increase. If the pressure increases by too much, the tire can burst.
400

If the melting point of a substance is -55oC and the boiling point is 365oC, what state of matter is it in at a temperature of 145oC?

Liquid

400

What two phase changes occur when you decrease thermal energy?

condensation and freezing

500

Draw a picture to show the arrangement of particles in a liquid (either on a piece of paper or just picture it in your mind)

(picture should show loosely packed particles, with small spaces in between some of them.)

500

What happens to the particles in a solid as you add heat to them?

The particles vibrate faster and faster until they break their bonds and become a liquid.

500
Use your knowledge of gas laws to explain what happens when a you take a balloon outside in the winter from inside the house.
As the balloon cools the the volume decreases and the balloon will shrink.
500

When you put a lid on a pot of boiling water, what 2 phase changes are you watching occur?

Vaporization in the pot; Condensation on the lid

500

What two phase changes occur when you increase thermal energy?

melting vaporization