Electricity
Energy
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?2
?3
100
Why do electrical cords have a rubber coating around them?
The rubber is an insulater and keeps us safe.
100
Does sound travel fastest through a solid, liquid, or gas? Why?
SOLID, because the molecules are so close together that the sound waves hit the molecules easily
100
How would you test to find out which brand of battery lasts longest in a remote control car?
Compare how long different brands keep the car running.
100
Plants grow well in soil that holds lots of which two things?
air and water
100
Which soil is between topsoil and bedrock and receives nutrients from the runoff of topsoil. Water does not easily runoff in this level.
Subsoil
200
Electricity creates this.
magnetisism
200
What would be a good conductor of heat?
Metal (We cook with metal pans)
200
You observe a plant that is bent over with wilted leaves. What does the plant need to perk up?
The plant is LACKING water. Give the plant water.
200
How do light rays travel?
In straight lines
300
How can a student create a complete circuit with a battery, a wire, and a light bulb?
by connecting everything to turn on the light bulb
300
How can we change water from a liquid to a gas?
Add heat/thermal energy
300
What type of energy is riding a skateboard?
Mechanical Energy
300
What color is nutrient rich soil?
darker in color (Dark brown)
300
What does the word PREVENT mean?
To stop from happening
400
A doctor wants to use the x-ray machine but would not be able to if... A. All of the wires are disconnected B. All of the wires are connected
A. All of the wires are disconnected
400
How does sound travel?
In waves
400
Which type of soil is way down deep and is solid rock?
Bedrock
400
The more coils (copper wires) you have on a magnet, the stronger the magnet. Is this true or false?
This is TRUE
500
Name a good conductor. Name a good insulator.
Conductor=Copper, Insulator+Rubber
500
What type of energy would you use to pedal a bicycle?
Mechanical
500
To have sound, what three things must you have?
1. vibrations 2. medium 3. receptor
500
Which soil is on top and has the most nutrients and humus?
Topsoil
500
What does the word retain mean? What does the word absorb mean?
hold/soak up
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