These 2 materials/substances are good conductors of electrical energy
What is metal and water
Emily has a stack of 30 blocks that weigh 100g. She took her blocks to the moon. How much will the mass of the blocks change?
Zero. The mass will not change.
The following solid materials are on a table. Which material could a bar magnet separate from from the rest? (a) cookie crumbs (b) aluminum (c) sand (d) iron filings
What is iron fillings?
The type of force that causes a surface resistance
Friction
Electric current flows in this kind of circuit.
What is a "closed" circuit?
Opening a switch on a circuit causes this
What is a gap
When you see a puddle on the sidewalk on your way to school but then it's gone on your way home, what happened?
This part of a circuit is able to start and stop the flow of electrical current.
What is a switch?
Mrs. Romero poured oil into a beaker. She then poured water, syrup, and milk in the beaker. What is she testing?
Density
Grant was working on a wooden birdhouse. He changed the texture of the wood by sanding it with sandpaper. What type of change was this?
What is a change of physical property
When water is heated, what happens?
The water turns from liguid to gas.
It is cold outside so I put on my thick wool socks so my feet will not get cold. My wool socks are an example of a what?
What is insulator
Which is an example of a solution?
Salt water, sugar and water, etc.
Miss Crowder measures the mass of her chocolate milk before she places it in the freezer. Will the mass of the milk increase, decrease, or stay the same?
What is "stay the same"?
How can you separate the particles of sand, salt, and water?
Using a filter, filter the sand from the salt and water. Then let the water evaporate (add heat)
While working with magnets, Caleb held the south pole of his magnet to the south pole of another magnet. What word describes how the magnets will respond to each other?
What is repel?
Aubrey wants to look a little closer at the wings on a moth. Which tool should she use? (a) telescope (b) glasses (c) a magnifying glass (d) microscope
What is a magnifying glass
This is the part of the experiment that does not change.
What is control
The switch in an electrical circuit has to be (a) from Wal-mart (b) a conductor (c) an insulator (d) both conductor and insulator
What is (b)? conductor
When a liquid freezes this causes a change of what...?
State of matter
Salad, box of crayons, density tower, tool box. All of these are examples of a...?
What is mixture
When the solar panels on your house create energy that will turn your stove on, what is the source of energy? What is the energy produced?
What is solar energy and thermal energy
Why is glass a special material?
Glass is an insulator for electrical energy and a conductor of thermal energy