Controlling Heat
This type of material allows heat to move through it more slowly.
What is an insulator.
This is the direction heat energy moves.
What is from hot to cold (high energy to low energy)
These changes of state can occur when water reaches 100 degrees Celsius.
What is boiling or condensation.
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.
These are the two types of transfers required to heat a pot of soup.
What is conduction and convection.
This causes ice to melt.
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.
Water will undergo fusion at this temperature.
What is zero degrees Celsius.
These are the steps of a experiment write up.
What is problem question, hypothesis, materials, procedure, results, conclusion
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.
A device that can detect invisible heat radiation from a warm object
What is an infrared thermogram
The only form of energy transfer can happen without molecules.
What is radiation.
Two ways to reinflate an old balloon that is mostly deflated (without untying it).
Leave it out in the sun/heat it up.
These are ways to increase the speed of a change of state.
What is break it up, add other chemicals, add more energy.