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Physical Science Unit 5 Review

Total questions: 36

Worksheet time: 26mins

Name
Class
Date
1.
Blue Color: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
2.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
3.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
4.

Joe was working on a Density Gizmo and was asking to put the red oval on the scale.  What was Joe measuring?

a)

Weight

b)

Mass

c)

Volume

d)

Length

5.
A substance that contains only one type of atom is a(n)
a)
compound
b)
element
c)
heterogeneous mixture
d)
homogeneous mixture
6.
Which of these is a pure substance?
a)
bread
b)
table salt
c)
garden soil
d)
sea water
7.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
8.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
9.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
10.

Which substance is a compound?

a)

copper

b)

magnesium

c)

saltwater

d)

water

11.

A combination of substances that are not chemically combined is called a

a)

mixture

b)

compound

c)

element

12.

Physical properties....

a)

change the matter when studied

b)

can be observed and measured without changing the matter being studied

c)

include the ability to burn and rust

d)

are useless unless studied in a lab

13.

______________________ can only be recognized when substances react or do not react chemically with one another.

a)

Physical properties

b)

Chemical properties

c)

Flammable properties

d)

Colorful properties

14.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
15.
Which is an example of a physical property?
a)
ability to react with acid
b)
 state of matter
c)
flammability
d)
ability to react with oxygen
16.

All of the following are examples of physical properties EXCEPT

a)

Density

b)

Heat conductivity

c)

pH (acidic or basic)

d)

Boiling point

17.
Ice melting is an example of a
a)
physical change
b)
chemical change
c)
physical property
d)
chemical property
18.
Which is an example of a chemical change?
a)
melting ice to make water
b)
baking cake batter to make a cake
c)
putting cheese on bread to make a cheese sandwich
d)
cutting an orange into slices for a snack
19.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
20.
Which of the following indicates a chemical change?
a)
Change in state of matter
b)
Temperature change
c)
Change in size 
d)
Change in shape
21.
Which Law states that Matter cannot be created or destroyed during a Chemical Change/Reaction?
a)
Conservation of Energy
b)
Conservation of Matter (Mass)
c)
Conservation of Momentum
d)
Conservation of Thermodynamics
22.
Which of the following is an example of a physical change?
a)
sugar and oxygen reacting to produce water and carbon dioxide
b)
honey dissolving in tea
c)
a raw egg being cooked
d)
metal rusting after being left out in the rain
23.

O2(g) + 2 H2 (g) → 2 H2O (g) + EnergyO_2\left(g\right)\ +\ 2\ H_2\ \left(g\right)\ \rightarrow\ 2\ H_2O\ \left(g\right)\ +\ Energy  

a)

endothermic

b)

exothermic

24.

6 CO2+ 6 H2O + Energy → C6H12O6 + 6 O26\ CO_2+\ 6\ H_2O\ +\ Energy\ \rightarrow\ C_6H_{12}O_6\ +\ 6\ O_2

a)

endothermic reaction

b)

exothermic reaction

25.

_____ reactions usually feel hot!

a)

endothermic

b)

exothermic

26.

____ reactions usually feel cold.

a)

endothermic

b)

exothermic

27.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
28.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
29.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
30.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
31.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
32.

What happens to the temperature of an object if the kinetic energy is increased?

a)

temperature will increase

b)

temperature will decrease

c)

temperature will not change

d)

temperature could increase or decrease depending on the situation

33.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
34.

What is the density of the sphere, if its mass is 50 g?

a)

40 grmL\frac{40\ gr}{mL}  

b)

65mLg\frac{65mL}{g}  

c)

2 gcm3\frac{2\ g}{cm^3}  

d)

25gmL\frac{25g}{mL}  

35.
Which liquid is the least dense?
a)

oil

b)

water

c)

syrup 

36.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

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