Electricity
Magnetism
Force and Motion
Properties of Matter
Miscellaneous
100
Which statement about electricity is true: a. All metals are conductors of electricity. b. No metals are conductors of electricity. c. Some metals are conductors of electricity. d. Only silver and copper are conductors of electricity.
c. Some metals are conductors of electricity
100
The N-S on a magnet stands for what?
North-South
100
When you warm your hands by rubbing them together, you are using: a. friction b. gravity c. magnetism d. sound
a. friction
100
What is a solid?
A definite shape and a definite volume are properties of this state of matter.
100
The Sun is a(n): a. organism b. decomposes c. star d. planet
c. star
200
What is the purpose of a copper wire in an electrical circuit?
To conduct electricity
200
Which factor will cause a decrease in the force of attraction between two magnets? a. increasing the size of the two magnets b. increasing the distance of the two magnets c. changing the color of the two magnets d. changing the texture of the two magnets
b. increasing the distance of the two magnets
200
What form of energy is being used when a person pushes a wooden box across the floor? a. mechanical b. magnetic c. sound d. electrical
a. mechanical
200
Which metric unit should be used to describe the mass of an object.
Grams.
200
About how long does it take for the Earth to make one revolution around the Sun? a. one week b. one day c. one month d. one year
d. one year
300
Which of the following objects conducts electricity? a. toothpick b. paper clip c. nickel d. glass
b. paper clip
300
True or False: Like poles attract one another.
False, opposite poles attract one another
300
Which force causes rocks to roll downhill? a. gravity b. friction c. erosion d. magnetism
a. gravity
300
When a cup of water at room temperature is put in a freezer, the water's state of matter will change from ____ to _____?
Liquid to solid
300
What is photosynthesis?
Photosynthesis is the process in which plants take energy from the sun to make food.
400
Which property of an object describes how easily electricity travels through it? a. color b. temperature c. reflectivity d. conductivity
d. conductivity
400
True or False: Not all magnets are man-made, they occur naturally on Earth.
True
400
Riding a bicycle on a smooth road moves faster than on a rough road. This happens because the smooth road has: a. less gravity b. more gravity c. less friction d. more friction
c. less friction
400
True or false: When a piece of solid chocolate is melted into a liquid, its mass decreases.
False. The mass of the chocolate stays the same.
400
Why do cactus plants have sharp thorns?
To defend itself from animals and living things that deplete their water sources.
500
True or false: Batteries convert chemical to electrical energy.
True
500
What is a magnetic field?
The area around a magnet where it can attract or repel things.
500
A pulley and lever are both examples of: a. circuits b. magnets c. measurement tools d. simple machines
d. simple machines
500
What is the smallest unit or building blocks of matter?
Atom
500
What is a decomposer?
An organism that breaks down dead plants and animals for food.
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