Science Unit 4 Review

​Items can begin as electrical energy...

And then continue to a different type of energy....

Multiple Choice

Which of the following converts electrical energy to thermal?

• A light bulb in an oven

• A dishwasher washing dishes with cold water

• A mixer spinning

• An oven heating up to bake a cake

How does a wind-up toy work?

Multiple Choice

What kind of energy does a windup toy use?

• Mechanical

• Electrical

• Light

• Sound

Multiple Choice

What color is the hottest in a sunny day?

• White

• Black

• Green

• Blue

Rub your hands together super fast

Multiple Choice

What kind of energy conversion happens when you do rub your had?

• Mechanical to Thermal

• Thermal to Electrical

• Electrical to Thermal

• Mechanical to Light

​Generator

​Boiler and steam

​Turbine

Multiple Select

What 2 things can you use to see during a campfire?

• campfire

• lantern

• lamp

• oven

Multiple Choice

What happens when there is THUNDER?

• you can HEAR it

• you can SEE it

• you can SMELL it

• you can TOUCH it

Multiple Choice

Lightening is electrical energy. What does it change (transform) into?

• mechanical

• thermal

• sound

• light

Mechanical energy =

movement, running, turning, swinging, hitting, kicking, pedaling

Multiple Choice

What happens when you add energy (heat) to water?

• It begins to boil and evaporate

• It boils and then freezes

• It freezes

• The molecules dance

Fill in the Blanks

What does the word reliable mean in science?

Scientists can prove their experiments over and over again.

Wind--> Mechanical Energy

Turbine--> Electrical energy

Multiple Select

What do we use turbines for?

• to look nice when they turn

• to power houses and buildings

• to get sound energy

• to get electrical energy

​Sun Panels use the sun to gather energy for the home.

Multiple Choice

How do solar panels work best?

• Plugging into the wall

• Facing the sun

• Using mechanical energy

• Using light energy