Show:
Controlling Heat
Energy Transfers
Volume Changes
Changing States
Miscellaneous
100

This type of material allows heat to move through it more slowly. 

What is an insulator.

100

This is the direction heat energy moves.

What is from hot to cold (high energy to low energy)

100
This usually happens when heat is added.
What is expansion.
100

These changes of state can occur when water reaches 100 degrees Celsius.

What is boiling or condensation.

100

This is the reason the pop can crushes when immersed in ice water.

The water vapour inside the can quickly condenses into a liquid, which creates a change in pressure. This pressure is lower that the pressure on the outside of the pop can, causing it to crush. 

200
This is a common way to heat a home.
What is a forced air furnace.
200

These are the two types of transfers required to heat a pot of soup. 

What is conduction and convection.

200
This change in volume occurs when heat is removed from a substance.
What is contraction.
200

This causes ice to melt.

The addition of heat energy. 
200
This is why a lake freezes on the top instead of the bottom.
What is water expands when frozen.
300
This material between two panes of glass makes windows more efficient.
What is still air.
300
This type of energy means "the energy of movement".
What is Kinetic Energy
300

Bridges have metal plates with gaps between them for this reason.

The materials expand in the heat, and contract in the cold. The plates ensure that the bridge does not crack when this change in volume occurs. 

300

Water will undergo fusion at this temperature.

What is zero degrees Celsius.

300

These are the steps of a experiment write up.

What is problem question, hypothesis, materials, procedure, results, conclusion

400
This is a way you could increase the efficiency of a home.
What is add more insulation.
400
Why does conduction happen only in solids?
What is because the particles in a substance need to be touching.
400

This explanation describes why a metal toy left in the sun would have cracks in the paint.

The two substances expand and contract at different rates. 

400
This is the number of states a substance can have.
What is three; solid, liquid and gas
400

A device that can detect invisible heat radiation from a warm object

What is an infrared thermogram

500
This form of technology was created to replace boiling water in a bucket over a fire.
What is the electric kettle.
500

The only form of energy transfer can happen without molecules.

What is radiation.

500

Two ways to reinflate an old balloon that is mostly deflated (without untying it).

Leave it out in the sun/heat it up. 

500

These are ways to increase the speed of a change of state.

What is break it up, add other chemicals, add more energy.

500
This is the amount of heat energy required to increase the temperature of a substance by one degree.
What is the specific heat capacity.