Circuits
True or False: Turning on the light switch closes the circuit that is attached to the light.
What is true?
A teacher has a bin full of paper clips made of different materials. Some are made of plastic and others of steel. What property of the paper clips is different in this mixture?
Physical state, solubility or magnetism
What is magnetism?
A pencil falls off the desk. What moves the desk towards the floor?
What is gravity?
An example of electrical energy turning to thermal and mechanical is which of the following:
-a car driving down the road
-vegetables frying on the stove
-a hair dryer blows hot air
What is a hair dryer?
a substance formed from dead organisms that can be used for energy
What is a fossil fuel?
True or false: All circuits must have a switch to work.
What is false?
A glass beaker contains 50 ml of water into which 8 grams of salt was stirred. Which item should be used to separate the solution?
hot plate, magnet or paper filter
What is a hot plate?
A force that slows or stops motion when objects rub together?
What is friction?
A light bulb turns electrical energy into what two types?
What is thermal and light?
the process by which pressure from rocks and soil reduces the size or volume of sediments
What is compaction?
Which of the following is the best conductors of electricity?
Copper
Wood
Plastic
What is copper?
A tool you use to separate a mixture of iron fillings and sand.
What is a magnet?
A group of science students designs an experiment to test the height of the ramp will change the distance a marble travels. They use a variety of marbles with different masses to travel down ramps of different heights and measured the distance traveled. The teacher said they would need to restart because it was invalid. Why was it invalid?
They would need to use same marbles or same ramps, or different size forces
What is same marbles?
The energy transformation when a person hits a drum with a drumstick?
What is mechanical to sound?
The piling of sediment in a new location
What is deposition?
In a series circuit, if one bulb goes out, all the others will
What is go out?
Kelsey stirs 10 grams of sugar into a cup. She then heats the water to evaporate it. How much sugar will remain?
What is 10 grams?
A science teacher asks students to make an educated prediction about what they will investigate.
This is called....
What is a hypothesis?
The color that absorbs the most light.
What is black?
Name three agents that break down landforms.
What are wind, water, ice?
Describe the difference between series and parallel circuits.
What is series circuits has one path and parallel circuits have multiple?
Which of the following is an example of a mixture that would keep its physical properties?
Kool Aid
Salt Water
Raisin Bran
What is Raisin Bran?
Chase is playing tug of war with his dog. The dog is pulling with more force than Chase. How will the rope respond to unbalanced force pulling in opposite directions?
What is it will move towards the dog?
A fish appears to be split or bent in the water. Describe what is happening.
What is refraction?
The explanation for why a valley is formed in a u shape is
What is erosion by a glacier?