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WorksheetsStructure and Properties of Matter Test Review
Total questions: 54
Worksheet time: 32mins
You know you a chemical reaction has occurred if
there is a precipitate (new solid)
there is a color change.
there is a temperature change.
All of these answers are evidence.
there are bubbles forming.
heat or light is produced
The air around us is a mixture of gases.
True
False
A solution is a mixture of one or more substances that _________ evenly into another substance.
dissolved
evaporated
carried
split
Can sand dissolve in water?
YES
NO
Which one of these is NOT a descriptive property of this object?
Soft
White and Grey
Large
60 x 48 inches
A solution where as much solid material as possible has dissolved into a liquid, and any EXTRA solid material sits or collects on the bottom.
soluble solution
chemical reaction
saturated solution
Imagine you have a 500 g bar of chocolate that you melt into a liquid. After melting it, you put the liquid on a scale. The scale measures
Less than 500 g
More than 500g
500 g
It is impossible to know
In which of these do particles move fastest?
matter
gas
liquid
solid
Does air have matter?
Yes
No
There is a cup of salt and water. Some salt has fallen to the bottom. Is it a chemical reaction or just a mixture/solution?
It is a chemical reaction because salt is at the bottom.
It is just a mixture/solution because you can evaporate the water out.
It is just a mixture/solution because it is a saturated solution. That's why there is salt at the bottom.
It is a chemical reaction because salt and water makes a chemical reaction.
You find a material's ______________ by saturating a solution, filtering out the excess, and finding out how much material has actually dissolved into the solution.
solubility
flexibility
color
malleability
flammability
There is a pitcher full of water, chemical A and chemical B. There is a lot of bubbling. Is this a chemical reaction or just a mixture/solution?
Carbon dioxide is being released so it is a chemical reaction.
Oxygen is being released so it is a chemical reaction.
There is a cup with Chemical A and B. When I add water, there is no fizzing, but some powder fell to the bottom. I tested the powder and found it was Chemical B. What happened?
A precipitate formed so it is a chemical reaction.
The solution was saturated so it could not dissolve anymore Chemicals.
You can filter a solution to separate the solute and the solvent.
True
False
You can filter salt out of saltwater.
True
False
There is a cup with Chemical A and B. When I add water, there is no fizzing, no material at the bottom, but it got really cold. What happened?
It was not a chemical reaction because only one of the signs was present.
It was a chemical reaction because it was cold.
It was not a chemical reaction because there needs to be a precipitate.
There is a cup with Chemical A and B. When I add water, some crystals fell to the bottom. I tested the crystals and they were not Chemical A or B. What happened?
It was a chemical reaction because a precipitate was formed.
It is not a chemical reaction because it was just a saturated solution.
These are all words that can be confused when used as properties EXCEPT...
long
tall
tiny
hard
pretty
These are all words that can be confused when used as properties EXCEPT...
short
transparent
colorful
fat
huge
Transparent means
see through
kind of see through
not see through
Opaque means
see through
kind of see through
not see through
These are all words that cannot be confused when used to describe something...
opaque
giant
metallic
solid
flexible
If I mix 5 g of sugar and 50 g of water, the sugar dissolves into the water and looks like it disappeared. I can prove it is still there by...
Weighing it
Filtering it
Observing it
Smelling it
The weight of an object DOES change if...
you freeze it
you melt it
you reshape it
you cut it into pieces
you add more to it
