Science Week 4 Lesson

Science Week 4

Studies Weekly 4 Lesson on Heat

1.Fossil Fuels

• oil, coal, and natural gas buried inside Earth millions of years ago

• Humans use them for fuel

• Comes from decomposing plants and animals under pressure and heat

• not renewable

Multiple Select

Select three fossil fuels

• natural gas

• electricity

• oil

• coal

Multiple Choice

True or False:

Fossil fuels are renewable

• True

• False

2.Temperature and Heat

• Temperature = measures heat energy (how fast molecules are moving)

• Heat = the amount of heat energy are in an object

Multiple Choice

What is temperature?

• the measure of heat

• the amount of heat energy in an object

• when something goes from hot to cold

Multiple Choice

What is heat?

• when something goes from hot to cold

• the amount of heat energy in an object

• the measure of heat

2.Temperature and Heat

• Heat moves from hot to cold

• When you feel cold, heat is leaving your body and into the environment

Multiple Choice

Heat moves from ___ to ___.

• cold to hot

• hot to cold

• object to energy

• low to high

3.Conduction, Convection, and Radiation

• Conduction= when heat energy "rubs off" on another object.

• Conductors (metal) can hold and transfer heat very well

3.Conduction, Convection, and Radiation

• Convection = when heat moves in air

• hot air rises, cool air sinks

• Radiation = when something gives off heat

Example of Convection: Heater radiates heat. Heat rises in the room, cools off, and falls back down.

Multiple Choice

The metal pan heating up from the fire is an example of...

• radiation

• convection

• conduction

Multiple Choice

The sun giving off heat is an example of...

• radiation

• convection

• conduction

Multiple Choice

The hot air moving around a room is an example of...

• radiation

• convection

• conduction

4.Expansion and Contraction

• hot molecules move faster will expand to take up more room

• cool molecules move slower will contract and get smaller

• *water is one exception

Multiple Choice

When molecules heat up, they...

• contract

• expand

Multiple Choice

When molecules cool down, they...

• contract

• expand

4.Expansion and Contraction

• buildings and bridges have expansion gaps

• prevent breaking

Multiple Choice

What do buildings have so that they can expand in the heat and not break?

• expansion gaps

• concrete slots

• contraction gaps

• expansion slots

5.The Temperature Team

• Daniel Fahrenheit invented thermometers

• Anders Celsius an astronomer who invented the temperature scale (0 is freezing and 100 is boiling)

• Lord Kelvin invented absolute zero

Multiple Choice

Who invented the temperature scale?

• Daniel Fahrenheit

• Anders Celsius

• Lord Kelvin

Multiple Choice

Who invented absolute zero?

• Daniel Fahrenheit

• Anders Celsius

• Lord Kelvin

6.Measuring Energy

• Heat energy is measured in Btu

• Energy is measured in joules

• Joules = amount of energy it takes to life a one-pound object 9 inches.

• 1000 J = 1 Btu

Multiple Choice

Which takes more joules of energy to lift?

• Large stone

• Basketball