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Physical or Chemical?
Changes of State
Density
How to Identify Unknown
Separation Techniques
100
Can be observed without changing the identity of the substance.
What is a physical property of a substance?
100
The process of a solid changing into a liquid.
What is melting?
100
length x width x height
What is the volume of a regular object?
100
The measure of how much of a substance dissolves in a given volume of liquid.
What is solubility?
100
Used to separate solid objects of different sizes.
What is sieve?
200
When atoms in the original substance are rearranged to make new substances.
What is a chemical change?
200
The process of a solid changing directly to a gas.
What is sublimation?
200
The difference between the volume of water in a graduated cylinder and the volume of water plus the object in a graduated cylinder?
What is measuring volume by displacement?
200
A copper wire used to carry electricity.
What is an example of a good conductor of electricity?
200
Used to separate a dissolvable solid from a solution.
What is evaporation?
300
A loaf of bread baked in the oven.
What is an example of a chemical change?
300
Heated water forms bubbles of water vapor inside it.
What is an example of boiling?
300
mass _____ volume
What is density?
300
An aluminum pan used to cook food.
What is an example of a good conductor of heat?
300
Used to separate a liquid from a solution
What is condensation?
400
A ball of clay rolled out flat
What is an example of a physical change?
400
The process of turning from a gas to a solid.
What is deposition?
400
grams ______ mL
What are the units of density?
400
Iron, nickel, and steel
What are substances that are magnetic?
400
Used to separate a liquid from a solid.
What is filtration?
500
A bowl of ice cream melted into a liquid.
What is an example of a physical change.
500
The temperature at which a liquid becomes a gas.
What is the boiling point?
500
A cork floating on water.
What is less dense than water?
500
Aluminum and plastic
What are substances that are not magnetic?
500
Used to separate solids or liquids of different densities.
What is decanting?