HEAT HEAT a third grade PowerPoint introduction ©Mike Hyman(CoachHyman), 2014

HEAT Words to Know heat temperature degree conductor insulator ©Mike Hyman(CoachHyman), 2014 It is hot outside. It is even hotter on the road. When I go to the beach, the sand is really 
hot - much hotter than the air and the water. Why is that? ©Mike Hyman(CoachHyman), 2014

Things Are Heating Up Sawing wood, rubbing your hands together, or even moving machine parts are sources of heat due to friction. Heat is energy that warms matter. Other sources of heat are the Sun (the Earth's main source) and fire. Many other items produce heat as well. Heat can travel through solids, liquids, and gases. It can even travel though space. This obviously happens because of how far the Sun is from Earth. metal ©Mike Hyman(CoachHyman), 2014 The metal coils on this space heater get very hot 
when it is turned on. The heat then will heat the air 
in the room. Over a ten minute period, how does 
the water 
temperature rise 
and the heat travel 
up the metal rod? 10 minutes 
later ©Mike Hyman(CoachHyman), 2014

Temperature Pictured to the left is a thermometer. A thermometer is a tool that is used to measure temperature (how hot or cold something is). Temperature is measured with a few different units of measure. The unit of measure is the degree. It is usually in degrees Fahrenheit or degrees Celsius. The symbol is a raised circle next to the number. degree symbol Not everything changes temperature at the same 
 rate. When you go to the 
 beach and the air 
 temperature is 95 degrees, the water is still much 
cooler than the air and the 
sand is usually very hot. 
This happens because the 
sand does not need as 
much energy to get hotter 
like the water does. sand - 85 o water - 70 air - 95 o 65 ©Mike Hyman(CoachHyman), 2014 ©Mike Hyman(CoachHyman), 2014

Can Heat Cause Changes In Matter? Everyone can tell when it is hot outside even though you cannot see the heat. You can, however, see how heat changes matter. Heat can cause the shape of matter to change. Why does this happen? Heat causes the particles that make matter up to move faster and separate. When matter cools, the particles slow down and get closer. hotter ©Mike Hyman(CoachHyman), 2014 When an ice cube sits in a temperature above 32 degrees, the particles that make it up will move faster and farther apart. The 
ice cube will melt. You can see the temperature of this railroad track got so hot that the metal expanded (got bigger/longer) and changed the track 
shape. This could cause train accidents. Thermometers contain a liquid that expands as the temperature gets hotter. This causes the liquid to spread to higher points. When it is colder, the liquid particles move slower and the liquid contracts (gets smaller) so less of the thermometer seems to be filled. colder ©Mike Hyman(CoachHyman), 2014

Neoprene Can Insulator Controlling Heat When food is cooked, why are the pans made of aluminum, iron, or other metals? The reason is that metals are good conductors of 
heat. A conductor is a material that 
heat moves 
through easily. Electrical wires are usually made of copper because they allow electricity to pass through them easily. The usually have an insulator (substance that doesn't transfer heat easily) covering them because they get very hot. ©Mike Hyman(CoachHyman), 2014 Neoprene 
Can 
Insulator Many people use insulators on their cans to keep them cold. Wearing coats, gloves, and hats help insulate people by keeping in heat. Houses have insulation put into them so the temperature can 
remain the same no matter how hot 
or cold it is outside. ©Mike Hyman(CoachHyman), 2014

Animals Keeping Warm Many animals live in climates that are very cold. They need ways of keeping warm. Lots of animals have built in insulators to help them stay warm in cold weather. If this tree frog were to be put in a cold environment, it would not survive. Its thin skin does not provide for good storage of heat. ©Mike Hyman(CoachHyman), 2014 Animals such as this whale have a large amount of fat tissue known as blubber to insulate them (keep heat inside), to give them energy, and allow them to float easier. The fur on this polar bear help it to 
stay warm by keeping heat in. ©Mike Hyman(CoachHyman), 2014

Changing Energy Heat forms in many ways. If you were in the woods and needed to start a fire without matches, it could be done. Friction created between certain types of wood or rocks can create heat. When wood is burning, heat is released. Even when you eat food, heat is released as your body turns food into energy. That's why your body stays at a certain temperature. Heat is neat. Heat forms when the wood is moved back and forth very quickly and friction occurs. Your body creates heat when food is converted into energy for your body. While wood burns, heat is released. ©Mike Hyman(CoachHyman), 2014 ©Mike Hyman(CoachHyman), 2014

Cold air balloon rides $1 Explain the cartoon below ©Mike Hyman(CoachHyman), 2014 Cold air 
balloon rides 
$1 Hot air 
balloon rides 
$5 ©Mike Hyman(CoachHyman), 2014

HEAT What is the temperature in Fahrenheit? a. 26 b. 30 c. 70 d. 80 a. 5 b. 10 c. 40 d. 50 What is the temperature in Celsius? a. 20 c. 85 d. 90 a. 0 b. 5 c. 32 d. 40 Insulator or Conductor Which is the Correct Answer Conductor or Copper Wire Insulator Coat Bottle Holder Frying Pan Circle the Correct Answer Fur Insulation How can an increase in heat cause changes that could be dangerous on roads or train tracks? ©Mike Hyman(CoachHyman), 2014 ©Mike Hyman(CoachHyman), 2014

Cold air balloon rides $1 Explain the cartoon below ____________________________________________________________________________________________________________ ____________________________________ Cold air 
balloon rides 
$1 Hot air 
balloon rides 
$5 ©Mike Hyman(CoachHyman), 2014

HEAT Circle the Correct Answer Insulator or Conductor Copper Wire Coat Conductor Conductor Insulator Insulator Bottle Holder Frying Pan What is the 
temperature in 
Fahrenheit? a. 26 b. 30 c. 70 d. 80 What is the 
temperature in 
Celsius? a. 20 b. 30 c. 85 d. 90 What is the 
temperature in 
Celsius? a. 0 b. 5 c. 32 d. 40 What is the 
temperature in 
Fahrenheit? a. 5 b. 10 c. 40 d. 50 Conductor Conductor Insulator Insulator Fur Insulation Circle the Correct Answer Conductor Conductor Insulator Insulator How can an increase in heat cause changes that could be dangerous on roads or train tracks?___________________________________________________________ ______________________________________________________________________________________________________________________________________ ©Mike Hyman(CoachHyman), 2014