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WorksheetsUnit 3 - Lessons 4-7
Total questions: 33
Worksheet time: 17mins
All changes in matter are easily seen.
True
False
Scratching a piece of class is an example of matter changing.
True
False
Which is an example of matter changing into new substances.
changing matter from a liquid to a solid
mixing baking soda and vinegar to form a gas
scratching a piece of glass until it turns cloudy
all of these
The particles in a ______ are close together and locked in position.
solid
liquid
gas
all of these
_______ is the state change from solid to liquid.
melting
boiling
condensing
freezing
_______ is the state change from liquid to solid.
melting
boiling
condensing
freezing
_______ is the state change from liquid to gas.
melting
boiling
condensing
freezing
_______ is the state change from gas to liquid.
melting
boiling
condensing
freezing
As you heat a substance, the particles of the substance move _________.
faster
slower
the same
When a gas is cooled, the particles of the substance go faster and faster.
True
False
The particles in a ______ are close together and flow over each other.
solid
liquid
gas
all of these
The particles in the _________ are far apart and move quickly in all directions.
solid
liquid
gas
all of these
When one or more substances are changed into new substances.
state change
reaction
operation
all of these
Which of the following might suggest a chemical reaction has occured?
formation of a new solid/liquid/gas
color change
energy change
all of these
If evidence of a reaction is seen (ie. bubbles), then a reaction has definitely occurred.
True
False
Baking muffins would be an example of a chemical reaction.
True
False
Boiling spaghetti noodles would be an example of a chemical reaction.
True
False
The properties of matter can change, but only a few different things can cause these changes.
True
False
Which of these can cause matter to undergo change?
adding energy
removing energy
combining matter
all of these
Heating, cooling, and mixing substances will always lead to a reaction.
True
False
Most things ________ when heated.
expand
contract
Most things ________ when cooled.
expand
contract
The particles in most substances get ____________ when heat is added.
closer together
farther apart
The particles in most substances get ____________ when heat is removed.
closer together
farther apart
When a solid is completely dissolved in a liquid it is no longer considered a solid.
True
False
You mix substances and cause a reaction whenever you activate a glow stick.
True
False
Keeping food in a refrigerator or a freezer can slow the reactions that make food go bad.
True
False
During all changes of matter, matter is __________.
destroyed
replaced
conserved
compromised
Matter is not gained or lost during changes in state.
True
False
Which of these changes will change the weight of a substance.
heating the substance
cooling the substance
adding another substance
all of these
Using a glow stick will decrease its mass.
True
False
In engineering, a _________ keeps you from doing certain things.
constraint
criteria
In engineering, _________ are the properties that you want a material or a solution to have.
constraint
criteria
