What is Matter?
Changes in Substances
Definitions
Separation Techniques
Random
100
Matter can exist in 3 forms – what are they?
Solid, Liquid, Gas
100
True or False: Changes in matter can be caused by heat.
True
100
What is the definition of condensation?
The process of a gas changing into a liquid.
100
True or false: Not all substances used to improve or preserve food are healthy for you.
True. Bonus 50 points if you can say the most common food enhancer
100
Explain what sifting is used for.
To separate larger solids from smaller ones
200
A ____________ has a fixed volume, but no fixed shape.
Liquid
200
There are 2 processes that change substance from a liquid to a gas. What are they?
Evaporation & Boiling
200
What is the definition of a chemical reaction?
The process in which the chemicals in a substance are changed and the starting and ending products are not the same.
200
What logo indicates that products have passed inspection?
TIS logo / TISI Logo
200
How old is T. Emily?
22
300
I am a state of matter. The distance between my particles is very small and they are arranged in a fixed position. What am I?
Solid
300
Burning is an example of a ___________ change?
Chemical
300
What is the definition of a physical reaction?
The process in which a substance changes physically, but remains the same chemically. It can change state, color, size, etc.
300
Filtration is used to separate what types of solids from liquids?
Insoluble or Solids that cannot dissolve
300
Is a solution a physical or a chemical change?
Physical
400
I am a solid at 0 degrees C, a liquid at 30 degrees C, and a gas at 100 degrees C. What substance am I?
Water
400
What is the name of the process where a substance dissolves in water.
Dissolution
400
What is a mixture?
A combination of 2 or more substances in which all substances remain the same physically.
400
What for and how is separation through evaporation used?
Evaporation is used to separate dissolved solids from a solution by boiling or letting the liquid evaporate naturally.
400
In which physical state do the particles vibrate?
Solid
500
I am a state of matter. My particles move very quickly and randomly. The arrangement of my particles is random. What am I?
Gas
500
Cooking popcorn is an example of a _________ change? Why?
Physical. The water inside the kernels heats up and expands the kernel, releasing the corn. The corn and kernel do not change chemically.
500
What is the definition of sublimation?
The process of a substance changing from a solid to a gas or a gas to a solid without passing through the liquid state.
500
Explain separation by precipitation.
A substance that dissolves in a liquid is turned into a solid by adding other substances. Then the solid is removed from the liquid by filtration.
500
What state is T. Emily from?
New Jersey
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