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Physical Science Cumulative (8th)

Total questions: 50

Worksheet time: 3570secs

Name
Class
Date
1.

Urban growth and uncontrolled waste disposal by humans most likely results in

a)

conservation of fossil fuels

b)

environmental degradation

c)

improved soil composition

d)

a balanced ecosystem

2.

The sign below was posted near a lake.

Which environmental problem is most likely indicated by the sign?

a)

toxic waste

b)

global warming

c)

ozone depletion

d)

species extinction

3.

Which human activity would help reduce the amount of carbon dioxide in the atmosphere?

a)

decrease the burning of fossil fuels

b)

decrease the number of recycling programs

c)

increase the human population

d)

increase the number of cars being driven

4.

What is the main source of energy for the water cycle?

a)

the Moon

b)

the Sun

c)

winds

d)

oceans

5.

Which terms best describe the properties of a gas?

a)

defi nite volume and a defi nite shape

b)

defi nite volume and no defi nite shape

c)

no definite volume and a definite shape

d)

no definite volume and no definite shape

6.

Which event is an example of a physical change?

a)

iron rusting

b)

fi reworks exploding

c)

eggs cooking

d)

ice melting

7.

The diagram below represents a portion of the Periodic Table of the Elements.

Based on its position in the Periodic Table, at room temperature, cadmium is most likely a

a)

noble gas

b)

nonmetal

c)

metal

8.

The model below represents a molecule of ammonia gas.

Ammonia gas would be classified as

a)

a compound

b)

a mixture

c)

an element

d)

an atom

9.

When calcium carbonate (CaCO3 ) is heated, it decomposes to form calcium oxide (CaO) and carbon dioxide (CO2 ). The equation below shows this reaction.

In this reaction, the mass of CaCO3

a)

is less than the mass of CaO plus the mass of CO2

b)

is greater than the mass of CaO plus the mass of CO2

c)

equals the mass of CaO plus the mass of CO2

d)

equals the mass of CaO minus the mass of CO2

10.
What tells you on the periodic table how many energy orbitals or shells an atom has?
a)
Period
b)
Group
c)
Family
d)
Atomic Number
11.
What on the periodic table tells you what elements have the same physical characteristics?
a)
Period
b)
Group/Family
c)
Atomic Number
d)
Atomic Mass
12.
What on the periodic table tells you the number of valence electrons?
a)
Period
b)
Group/Family
c)
Atomic Number
d)
Atomic Mass
13.
Which represents a chemical change?
a)
A campfire
b)
boiling water
c)
a phase change
d)
ripping paper
14.
Which instrument will help you get the volume of a substance?
a)
A graduated cylinder
b)
A triple beam balance
c)
A spring scale
d)
A ruler
15.
Which type of energy is produced by the splitting of an atom, a larger atom is split into two new elements (Fission)?
a)
Solar
b)
Chemical
c)
Nuclear
d)
Electrical
16.
The space an object takes up and is measured by taking the length times width times height or the displacement of water is called the -
a)
weight
b)
mass
c)
volume
d)
leng
17.
What is made up of more than one different elements?
a)
element
b)
mixture
c)
compound
d)
solution
18.
What cannot be broken down to any simpler piece of matter and still be the same type of matter?
a)
element
b)
mixture
c)
compound
d)
soluti
19.
Kool-Aid is put into water, the universal solvent.  The Kool-Aid is the 
a)
solute
b)
solvent
c)
solution
d)
mixture
20.

Ryan has 2 boxes. One weighs 5 pounds. The other weighs 50 pounds. If he pushes on the boxes with the same amount of force, what will happen?

a)

The 5lb box will move more easily.

b)

The 50lb box will move more easily.

c)

The boxes will move at the same speed.

21.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
22.

The smallest particle of an element that still retains the properties of that element is a(n)

a)

atom.

b)

compound.

c)

mixture.

d)

eelctron.

23.

The number of protons in an atom's nucleus is the

a)

mass number.

b)

atomic number.

c)

atomic mass.

d)

average mass.

24.

A machine that is a combination of two or more simple machines is a

a)

lever.

b)

wedge.

c)

wheel & axle.

d)

compound machine.

25.

The change of one substance into a new substance is a(n)

a)

chemical change.

b)

physical change.

c)

sublimation.

d)

evaporation.

26.

What is a substance that has atoms that are all alike?

a)

element

b)

compound

c)

water

d)

carbon dioxide

27.

A mixture in which different materials are unevenly distributed and are easily identified is

a)

homogeneous.

b)

heterogeneous.

c)

hemophilia.

d)

homosapien.

28.

An element that is typically a hard, shiny solid, is malleable, ductile, and a good conductor of heat and electricity is a

a)

metal.

b)

nonmetal.

c)

metalloid.

d)

synthetic.

29.

An element that shares some of the properties with metals and some with nonmetals is a

a)

metal.

b)

nonmetal.

c)

metalloid.

d)

synthetic.

30.

Any characteristic of matter that you can observe without changing the identity of the material is a

a)

physical property.

b)

chemical property.

c)

characteristic.

d)

identifier.

31.

The scientific method is

a)

a set of investigation procedures.

b)

used by scientists to solve problems.

c)

used in our daily lives to solve problems.

d)

all of the above.

32.

Which of the following is NOT an element?

a)

water

b)

oxygen

c)

carbon

d)

nitrogen

33.

How would you classify the color of a rose?

a)

chemical change

b)

chemical property

c)

physical change

d)

physical property

34.

WHich of the following warnings refers to a chemical property of a substance?

a)

fragile

b)

handle with care

c)

flammable

d)

shake well

35.

The atomic number of Re is 75. The mass of one of its isotopes is 186. How many neutrons are in an atom of this isotope?

a)

75

b)

186

c)

111

d)

261

36.

In which state of matter are most of the elements to the left of the stair-step line in the periodic table?

a)

gas

b)

plasma

c)

liquid

d)

solid

37.

Because electrons move freely in metals, which property describes metals?

a)

brittle

b)

dull

c)

soft

d)

conductors

38.

Which set of elements makes up the most reactive group of all metals?

a)

iron triad

b)

alkali metals

c)

coinage metals

d)

alkaline earth metals

39.

Which elements are least reactive?

a)

metals

b)

noble gases

c)

halogens

d)

alkali metals

40.

In the chemical reaction HCl + NaOH --> H2O + NaCl, the reactants are

a)

HCl & H2O

b)

NaOH & NaCl

c)

HCl & NaOH

d)

H2O & NaCl

41.

The chemical formula for water is

a)

HCl

b)

NaOH

c)

H2O

d)

NaCl

42.

In the following chemical equation, what coefficient should be placed in the blank to balance the chemical equation?

3C + ___H2 --> C3H8

a)

4

b)

3

c)

8

d)

1

43.

Which system uses a nonrenewable energy source to generate electricity?

a)

wind turbines

b)

solar panels

c)

geothermal power plant

d)

nuclear power plant

44.
__________ is an energy resource that WILL NOT run out in the next several hundred years.
a)
Renewable Energy Resource
b)
Nonrenewable Energy Resource
45.
What kind of environment would have had to existed in the past for an area to have coal today?
a)
Any environment where a large number of plants and animals died.
b)
A swamp with many generation of plants that died and couldn't decompose naturally.
c)
A sea where many plants and animals died and couldn't decompose.
d)
A desert environment where no living things ever existed. 
46.
A disadvantage of solar energy is
a)
that the clouds can block the sunlight
b)
it is not available at night
c)
that the clouds can block the sunlight and it is not available at night
d)
the sun is too hot to be absorbed in solar panels
47.
An example of a biofuel is
a)
gasoline
b)
oil
c)
animal waste
d)
minerals
48.
Conservation is
a)
the practice of increasing the use of natural resources in order to use them
b)
the practice of increasing the use of natural resources in order to save them
c)
the practice of decreasing the use of natural resources in order to use them
d)
the practice of decreasing the use of natural resources in order to save them
49.

Fuels such as coal, oil, and natural gas that were formed over millions of years from decayed plants and animals. This process requires time, pressure, and heat.

a)

Fossil Fuels

b)

Renewable Resources

c)

Replenish

d)

Geothermal

50.

Which is NOT true about renewable resources

a)

There is an never-ending supply of renewable resources.

b)

All renewable resources can be used to keep the earth cleaner.

c)

Using renewable resources can keep the environment more healthy.

d)

All renewable resources are bad for the environment.

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