Energy Conversions Answer Key - Gizmos Student Exploration ADDED POSSIBLE QUESTIONS 100% CORRECT, SATISFACTIONS GUARANTEED 

Vocabulary: chemical energy, electrical current, energy, fossil fuel, global warming, gravitationalpotential

energy, hydroelectricity, kinetic energy, light, nonrenewable resource, nuclear energy, renewable resource,

sound, thermal energy

Prior Knowledge Questions (Do these BEFORE using the Gizmo.)

1. What are sources of electricity? List as many as you can. Wind, a generator, heat, water.

2. Where do people and other animals get energy to move around? We eat plants and animals.

3. Where do plants get energy to live and grow? They get energy from the sun.

Gizmo Warm-up

In the Energy Conversions Gizmo, be sure Information mode is

selected. Click on each of the different items in thescene and read

about each one.

1. Which object converts sunlight into sugars?

The corn

2. Which object converts wind power to electricity?

The wind turbines

3. Which object converts light to electricity? The solar panels

4. Which object converts electricity to light? The lightbulb

Activity A:

Energy Paths

Get the Gizmo ready:

• Select the Path mode.

Question: Where do we get energy to run, climb, play, and do all the other things we do?

1. Form hypothesis: Where do you think we humans get energy? From food

2. Create a path: You will now form an energy path to see where our energy comes from.

A. Click on the person and read. Where do people get energy? The chicken

B. Now click on the chicken. Where does the chicken get energy? The corn

C. Click on the corn. Where does the corn get energy? The sun

D. Click on the Sun. How does the Sun get energy? Hydrogen is changed into helium by a

nuclear reaction.

E. Fill in the energy path below starting with the Sun.

_Sun → water → dam →

toaster

3. Apply: Click Reset and then click on the toaster. Using the Gizmo, create four energy pathsto

explain how the toaster could get its energy. (One path will only have three objects.)

A. toaster → wind turbine → air →

 sun

B. _toaster → _solar panels → sun

→

C. toaster → ethanoal plant →

corn → sun

D. toaster → _sun → wind turbine

→ air

4. Analyze: Where does each path begin?

Sun

5. Draw conclusions: What w