Heat Transfer
The movement of heat from a warmer object to a cooler one is called what?
Heat transfer
How many states of matter are there?
3
What do we call a material that allows heat to pass through easily?
Conductor
What type of energy is heat?
Thermal energy
The sun’s energy reaches Earth mainly through which type of heat transfer?
What type of heat transfer happens through direct contact?
Conduction
When a solid turns into a liquid, what is that process called?
Melting
Name a material that does NOT allow heat to pass through easily.
Insulator
What device do we use to measure temperature?
Thermometer
What type of heat transfer causes ocean currents and wind patterns?
Convection
What type of heat transfer happens through liquids and gases as they move?
Convection
What happens to particles when a substance is heated?
They move faster
Give one example of a conductor and one of an insulator.
Conductor - metal
Insulator - cooler
What is the unit we use to measure temperature?
Degrees Fahrenheit or Celsius
True or False: Heat always moves from cold to hot.
False - It moves from hot to cold
What type of heat transfer happens through empty space?
Radiation
What happens when a gas cools and turns into a liquid?
Why are oven mitts made from cloth instead of metal?
To prevent heat from travelling
Why does a black car get hotter than a white car in the sun?
Dark colors absorb more heat
What happens to most materials when they are heated?
Give one real-life example of one type of heat transfer.
Conduction - pan on a stove
Convection - boiling water
Radiation - sun
Combustion - candle
Explain how heat affects the state of matter.
It changes states - solid to liquid, liquid to gas, gas to liquid
A metal spoon and a wooden spoon are in a hot pot of soup. Which one gets hot faster, and why?
When you rub your hands together and feel warmth, what type of energy transfer is that?
Friction or conduction
Explain how the water cycle uses heat energy.
Water evaporates and then becomes a cloud