Show:
Forms of Energy
How is Matter Heated?
Light Travel
Electricity
The Eye
100
Anything that can do work has __________________.
What is energy?
100
During burning, one kind of matter turns into ____________________________________________.
What is a different kind of matter and heat energy?
100
Rays of light travel in _______________________.
What are straight lines?
100
Electricity is a form of _______________.
What is energy?
100
The cornea or outer part of the eye is the ____________________________.
What is the clear covering?
200
Food, fuel, and batteries go through ________________.
What are chemical changes?
200
When most things get warmer, they also become _______________.
What is larger?
200
From its source light travels in ____________________.
What is all directions?
200
Tiny amounts of electricity are called electric __________.
What are charges?
200
Behind the clear covering is a small opening called the _________________.
What is the pupil?
300
___________________ has energy of motion.
What are moving things?
300
Temperature is measured by a tool called a _______________.
What is a thermometer?
300
Reflects is another word for _________________.
What is bounces?
300
The flow of electricity from place to place is an electric __________________.
What is current?
300
Behind the pupil and iris is the _____________.
What are the lens?
400
The starting point for most energy we use is __________.
What is the sun?
400
Electric energy produces heat in a a) bonfire b) hairdryer c) coal furnace or d) gas stove.
What is a hair dryer?
400
When light rays pass through lens, they ______________.
What is bend?
400
The electric circuit in a flashlight is controlled by a _____________________.
What is a switch?
400
The _______________________ passes through the lens and an image of what you see forms on the back of your eye.
What is the light source?
500
When fuel burns, energy is _______________________.
What is given off?
500
The item that is NOT a good conductor is a) a metal spoon b) an aluminum skillet c) an iron pan or d) a wooden box.
What is a wooden spoon?
500
The colored part of the eye is the ______________.
What is iris?
500
When you touch electric switches and appliances, your hands should be ______________.
What is dry?
500
After the light passes to the back of your eye, a message travels from the _____________ to the ______________.
What is the nerve to the brain?