Solid, Liquid or Gas
Mixing Materials
Separating Materials
Chemical Reactions
Definitions
100
This state of matter has a definite (fixed) shape and volume.
What is a solid
100
Water mixes with everything. True or False?
What is false
100
The best way to separate a mixture of sand and iron filings would be to use:
What is a magnet
100
A change in a substance that does not change its identity.
What is a physical change.
100
Mixtures that is unevenly mixed with one another.
What is heterogeneous
200
This state of matter has a definite volume but takes the shape of its container.
What is a liquid
200
Cornstarch does not dissolve in water.. what is this mixture called?
What is a suspension
200
What would be the best method to separate salt that has been dissolved in water?
What is evaporation
200
A change in which one of more substances break apart to form a new substance.
What is a chemical change.
200
when a substance is evenly dispersed in another mixture
What is homogeneous mixture.
300
This state of matter takes the shape of its container and is of low density.
What is a gas?
300
Baking powder does not dissolve in water, true or false.
What is true. Is created a suspension.
300
What would be the best method for separating popcorn kernels from sand?
What is a sieve
300
The substances that undergo change in a chemical reaction.
What is a reactant.
300
When we did our salt and water experiment, which substance was the solute and which was the solvent?
salt --- solute water --- solvent
400
Example: snow
What is a solid
400
coarse salt dissolved in water, therefore that is called a....
What is solution.
400
The best way to separate CO2 from a can of soda.
What is pop the top (open it).
400
The total energy in making and breaking of bonds in a chemical reaction results in a net absorption of energy (it's cold).
What is endothermic
400
A substance that contains only one type of atom
What is an element.
500
Clouds
What is gas
500
Epson salt dissolves in water, true or false.
What is true.
500
The process of pouring off the top layer without disturbing the layers or sediment below.
What is decanting
500
The law that states that during a chemical reaction, matter is neither created nor destroyed.
What is conservation of matter
500
what is a substance that cannot be separated by physical means
What is a pure substance.
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