States of Matter
Mixtures/Solutions
Conductors/Insulators
Relative Density
Changes in Matter
100
What are 3 of the states of matter?
Solid, liquid, gas
100
What is a mixture?
a combination of two or more substances
100
What do we call materials that allow electricity to flow through easily?
Conductors
100
Matter that has less density than water will _______?
Float
100
What is the boiling point of water?
100 degrees Celsius
200
What state of matter has their particles closed packed together?
Solid
200
What do we call the substance that dissolves another substance?
Solvent
200
What materials stop the flow of electricity and heat?
Insulators
200
Matter that is more dense than water will ________?
sink
200
What happens at 0 degrees Celsius?
A substance can melt or freeze.
300
What state of matter does not have a definite volume or shape?
Gas
300
What do we call the substance that is dissolved in another substance?
solute
300
What are copper and water considered?
Conductors
300
Oil has a density that is ______ than water.
Less
300
What happens when a liquid changes to a solid?
The temperature has to decrease.
400
What state of matter's particles are not packed closely together and flow past one another?
Liquid
400
What do you call a salad?
a mixture
400
Which material(s) from the list are considered insulators? glass, aluminum, gold, plastic, rubber
glass, plastic, rubber
400
Pennies have a density that is ______ than water.
more
400
What has to happen for a liquid to become a gas?
The temperature has to increase.
500
What substance, that we have studied, can be found in all 3 states?
water
500
What do you call lemon juice, sugar and water?
a solution
500
What is the purpose of the rubber and plastic surrounding an electrical cord?
to insulate the flow of electricity
500
What is the relative density of water?
1 gram
500
What phase change takes place when condensation happens?
Gas is changing to a liquid
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