1. Olga M. Salgado
3rd Grade
Heat
&
Energy

2. Electricity is a form of energy that people produce from the active energy
of wind and moving water and the
stored energy in oil and coal.

3. Evaporation is the changing of a liquid into gas.
Boiling water
evaporates.

4. Conduction is when there is movement of thermal energy from one thing to another.
Example:
Spoon placed
in hot water-
*toast placed in
a toaster

5. Convection occurs when thermal energy is moved from one place to another in moving liquids and gases.
Example:
A heating fan can
warm up the cold air
in a room.

6. Radiation occurs when thermal energy moves without touching anything.
Example:
Sun warms you even though you are not touching it.

7. Expands: When something expands it gets bigger when it gets hotter.
Bridge-pavement

8. Contracts: When something contracts it gets smaller from being cold.

9. Celsius: Named after Professor Celsius, temperature measured in a kind of number scale.
Fahrenheit: Named after Professor Fahrenheit, also a kind of number scale used to measure temperature.

10. that make up everything around us.
Molecules:
Tiny particles
that make up everything around us.

11. Something that keeps electricity, heat, or sound from escaping:
Insulation:
Something that keeps electricity, heat, or sound from escaping:
Examples: Birds/feathers
People/clothes
Lunchboxes

12. Some Sources of Heat
sun
fireplace
fan
oven
heaters

13. Heat is transferred
through:
Conduction
Convection
Radiation