WorksheetsProperties of Matter Menu Review
Total questions: 26
Worksheet time: 14mins
Name
Class
Date
1.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
2.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
3.
What is Viscosity?
a)
A liquid's resistance to flow.
b)
A liquid's ability to flow.
c)
A liquid's flowing speed.
d)
The measurement of time it takes a solid to change to a liquid.
4.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
5.
___________________ are the elements or compounds that are formed or produced in a chemical reaction.
a)
Polymers
b)
Bonds
c)
Reactants
d)
Products
6.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
7.
Is melting an object technically known as a chemical reaction?
a)
I don't know
b)
Yes
c)
No
8.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
9.
_________________ are the elements and compounds that react, or start, in a chemical reaction.
a)
Polymers
b)
Bonds
c)
Reactants
d)
Products
10.
Which of the following could indicate a chemical change?
a)
All of the answers could indicate Chemical Change
b)
a color change has occurred
c)
bubbles appear
d)
identifying one or more new chemical products
11.
Which is NOT an example of chemical change?
a)
production of gas.
b)
change in color.
c)
change in size.
d)
transfer of energy.
12.
Chemical reactions that release energy are known as ________________________.
a)
Endothermic
b)
Exothermic
c)
Boring
d)
Reactions
13.
Chemical reactions that absorb energy are known as ________________________.
a)
Endothermic
b)
Exothermic
c)
Boring
d)
Reactions
14.
A copper penny turning greenish after a few years is an example of...
a)
Chemical Change
b)
Physical Change
15.
Which of the following is a PHYSICAL change?
a)
Getting a haircut
b)
Rusty metal
c)
sour milk
d)
A compound
16.
Which of the following IS a chemical change
a)
using chalk
b)
water freezing
c)
slicing cheese
d)
digestion
17.
What is the law of conservation of mass?
a)
The part of the universe being studied
b)
The rest of the universe that interacts with the system
c)
Within a closed system, mass does not change
d)
A system that freely exchanges matter and energy
18.
Can matter be created or destroyed?
a)
Yes, it can be created.
b)
Yes, it can be destroyed.
c)
No, matter is always conserved
d)
None of these
19.
The mass after a physical change, such as ice melting into water, stays the same
a)
True
b)
False
20.
The total amount of matter (atoms) before and after a chemical reaction (change), remains the same.
a)
True
b)
False
21.
What is the law of conservation of mass?
a)
Matter changes when reacted or changed.
b)
The mass of all reactants are changed during a physical or chemical change
c)
The mass of the reactants is the same as the mass of the products
d)
The mass of the products is different than the mass of the reactants.
22.
What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?
a)
They both will weigh the same
b)
The product always weighs more than the reactant
c)
The reactant will weigh more than the product
d)
They both will loose mass after the reaction
23.
Suppose a reaction were to happen in an open container in a lab. During the reaction, the scientist observes the chemicals bubble, and produce a gas. During the analysis the scientist notices that the reactants weighed 20 g when he started, and the product weighed 18 g. Explain what happened.
a)
His chemical reaction defied the law of conservation of mass
b)
The product destroyed mass during the reaction
c)
The reactants created matter during the reaction
d)
The gas that was produced was not able to be weighed since the container was open.
24.
Evidence of a chemical reaction include:
a)
Phase change
b)
No new substance
c)
Bubbles forming
d)
Shape change
25.
How is a physical change different from a chemical change?
a)
There is absolutely no difference
b)
Chemical changes produce a new substance, physical changes stay the same substance
c)
Chemical changes create and destroy matter, physical changes don't
d)
Physical changes create and destroy matter, chemical changes dont
26.
All chemical equations create or destroy matter, which is why scientists weigh their reactants so they can see how much was created or destroyed
a)
True
b)
False
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