Definitions
Fill-in-the-blanks
Multiple Choice
Examples
100
Bouyancy means:
- to float
100
An object sinks in water if it's ___________ dense than water.
more
100
Matter: a) has mass b) takes up space c) can be described by properties d) all of the above
All of the above
100
What is an example of a physical change?
ex) a rubber band stretching ex) folding paper
200
What is a mechanical mixture?
When two things are mixed together and the properties don't change (you can see the 2 different things that were mixed together).
200
A physical change can be _____________ or non-____________________.
reversible non-reversible
200
In solutions: a) no particles can be seen b) it's the same colour throughout c) two things are mixed together d) all of the above
d) All of the above
200
Mixing flour, sugar, eggs, and other ingredients to make cookies is an example of what type of change?
chemical
300
What is evaporation?
A liquid changing to a gas.
300
In an experiment, you make a prediction during the _____________________.
hypothesis
300
If you put baking soda and water into a pop bottle and put a balloon on top, this is an example of how you can produce what?
carbon dioxide or a gas
400
A characteristic of a rock could be?
- it's grey - it has a mass of 50g - it is smooth
400
Molecules move fastest in a ________.
gas
400
Condensation is: a) a gas changing to a solid b) a solid changing to a liquid c) a liquid changing to a gas d) a gas changing to a liquid
c) a gas changing to a liquid
400
An example of a property could be?
ex) boiling point
500
Molecules move the slowest in _____________.
a solid
500
What has a definite shape and has particles packed tightly together? a) solid b) liquid c) gas d) both a and b
a) solid
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