convection & conduction

MS-PS3-3: Apply scientific principles to design, construct, and test a device that either minimizes or maximizes thermal energy transfer.

Vocabulary: energy transfer, conductor, convection, conduction, electric current, heat radiation

1. Conduction: Give an example of energy transfer using conduction.

Watch the movie and answer the following questions.

a. Which rod burned the hand fist? Why?

b. Why are solids so good at conducting?

c. Why are liquids and gases harder to conduct?

d. Why is metal such an amazing conductor?

e. What are the key points to remember?

2. Play the Matchit Definitions game and give the definitions to the following words.

a. Transfer

b. Insulator

c. Degree

d. Radiate

e. Thermometer

f. Radiation

3. Convection: Give an example of energy transfer using convection.

Watch the movie and answer the following questions.

a. When does convection occur?

b. What happened when fire was added to the room?

c. What happens t the cooler fluid?

d. What is a convection current?

e. What are the key points to remember?

4. Radiation: Give an example of energy transfer using radiation.

Watch the movie and answer the following questions.

a. Space is a __________.

b. How does heat from the sun get to Earth?

c. Which color emits the most heat radiation?

d. Which color is best at absorbing heat radiation?

e. Why is this color best at absorbing heat radiation and emitting heat radiation?

f. What are the key points to remember?

5. Watch the movie and answer the following questions.

a. What are Earth's physical systems?

b. what happens to energy as it is transferred in and out of the Earth's systems?

c. What are the internal and external sources of Energy on Earth?

d. What is the major source of energy for organisms?

e. Some energy is stored as chemicals, but what happens to the rest?

f. What are fossil fuels?

g. How does a solar cell operate?