States of Matter Review

States of Matter Review

Thermal Energy

Thermal energy (heat) makes particles of matter vibrate. The more thermal energy a substance has, the faster its particles move!

Kinetic Energy

• Kinetic energy is the energy of movement.

• The more an object moves, the more kinetic energy something has.

• Movement creates heat, so if matter has kinetic energy, it has thermal energy.
  

Kinetic/Thermal Energy

• More kinetic energy = More movement

• More movement = More Heat

  Think: If you were to run a mile, would your body heat up or cool down?

  
  

Multiple Choice

This diagram shows different states of matter. The first box has the least amount of thermal energy. Thermal energy increases with each box. which box has the most thermal energy and particle movement?

• 1st box

  (solid)

• 2nd box

  (liquid)

• 3rd box

  (gas)

• they all have the same amount of energy

Multiple Choice

Which answer choice correctly shows thermal energy increasing with each box?

• A

• B

• C

Multiple Choice

Which phase change is occurring in this image?

• Solid to gas

• Liquid to solid

• Solid to liquid

• Gas to solid

Multiple Choice

Did thermal energy increase, decrease or stay the same?

• increase

• decrease

• stayed the same

Multiple Choice

Which phase change occurred?

• liquid to gas

• solid to gas

• gas to liquid

• liquid to solid

• Plasma is the state with the most kinetic energy (movement).

• It particles move so fast because it has the most thermal energy.

• Plasma particles are charged. They have a positive or negative charge.

​

Don't forget plasma!

Multiple Choice

If the thermal energy in plasma decreases, it will first become a...

• Solid

• liquid

• gas

Multiple Choice

It is snowing outside so you decide to build a snowman. You love it so much that you take it inside to join the family. Your house thermostat is set to a toasty 80 degrees. What is likely to happen to your snowman?

• Your snowman will gain thermal energy and freeze solid.

• Your snowman will gain thermal energy and melt into a liquid.

• Your snowman will lose thermal energy and freeze solid.

• Your snowman will lose thermal energy and melt into a liquid.

• Elements are the most simple form of matter.

• Made up of one type of atom

• Can be a single atom or several of the same atoms (molecules).

​

Elements

• Compounds are more than one element combined chemically.

• They can only be separated through chemical reactions.

​

Compounds

• Mixtures are can include single elements and compounds together.

• Mixtures are a physical combination.

• As such, they can be separated by physical means.

• Ex. Iron shavings removed from sand with a magnet.
  

​

Mixtures

Multiple Choice

Mixture, Compound or Element?

• Mixture

• Compound

• Element

Multiple Choice

Mixture, Compound or Element?

• Mixture

• Compound

• Element

Multiple Choice

Mixture, Compound, or Element?

• Mixture

• Compound

• Element

Multiple Choice

Mixture, Compound, Element?

• Mixture

• Compound

• Element

Multiple Choice

Water molecules are in a set ratio of two hydrogen atoms and one oxygen atom. Is water an element, compound or mixture?

• Element

• Compound

• Mixture

Multiple Choice

Identify the compound.

• A

• B

• C

• All are compounds

Multiple Choice

Identify the element.

• A

• B

• C

Multiple Choice

Identify the mixture.

• A

• B

• C

• B and C

Multiple Choice

Identify the compound

• A

• B

• C

• A and C

Multiple Choice

Identify the mixture

• A

• B

• C

• A and C