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8th Grade Physical Science Review FL

Total questions: 52

Worksheet time: 39mins

Name
Class
Date
1.

What makes mass and weight different?

a)

Mass is the amount of matter meanwhile weight is expressed in kg, lbs. and g.

b)

Mass and weight are expressed in g, kg and lbs.

c)

Mass is the amount of matter meanwhile weight is the force of gravity on an object's mass.

d)

none of the choices

2.

Which of the following is being used to identify if a certain object is a matter or NOT?

a)

Weight

b)

Density

c)

Volume

d)

Mass

3.

Vaporization/ evaporation is the change of physical state from _______ to _______.

a)

gas to liquid

b)

liquid to gas

c)

solid to gas

d)

gas to solid

4.

Dry ice on the kitchen counter has disappeared without a trace. Dry ice skips the liquid phase. It never "melts" instead turns directly into a gas. This is an example of what change of physical state?

a)

Sublimation

b)

Melting

c)

Condensation

d)

Deposition

5.

Which of the following is an example of chemical property?

a)

Electrolysis

b)

Corrosive

c)

Combustibility

d)

all of the choices

6.
You can measure ______ with grams.
a)
mass
b)
volume
c)
conductivity
d)
melting point
7.
__________ are the building blocks of life.
a)
solids
b)
gases
c)
atoms
d)
nutrients
8.
It occurs when a substance combine with another to form a new substance
a)
Physical Change
b)
Chemical Change 
c)
Physical Property
d)
Chemical Property
9.
It can be observed or measured without changing the composition of matter.
a)
Physical Change
b)
Chemical Change
c)
Physical Property
d)
Chemical Property
10.
Which of the following is not an example of Physical Change?
a)
Melting of an ice cream
b)
Water vapor formed as water boils
c)
Frying an egg
d)
Cutting the paper into pieces
11.
Which of the following is an example of physical change?
a)
an ice cream melts due to heat
b)
food digestion in stomach
c)
rusting of iron due to water exposure
d)
dynamite ignition
12.
Texture, color, states of matter, flexibility, freezing & melting points
a)
Chemical Properties
b)
Physical Properties
c)
States of Mass
d)
Scientific matterology
13.
Which of the following is an example of a chemical property?
a)
melting
b)
bending a paper clip
c)
rusting
d)
boiling water
14.
Which of the following is a pure substance? 
a)
Water
b)
Salad
c)
Chocolate milk
d)
All of them 
15.
Max is hungry and he prepares cereal with milk. This is an example of a: 
a)
Homogeneous mixture
b)
Heterogeneous mixture
16.
a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous MIxture

17.

What is it?

a)

Pure Substance

b)

Mixture

18.

What is it?

a)

Pure Substance

b)

Mixture

19.

When there is one type of atom

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

20.

When there is 2 or more atoms combined together

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

21.

The measure of the amount of matter in a given space

a)

mass

b)

weight

c)

volume

d)

density

22.

These units are used to measure the volume of an object

a)

cm³ or mL

b)

g/cm³ or g/mL

c)

grams (g)

d)

centimeters (cm)

23.

These units are used to measure the density of an object

a)

cm³ or mL

b)

g/cm³ or g/mL

c)

grams (g)

d)

centimeters (cm)

24.

These units are used to measure the mass of an object

a)

cm³ or mL

b)

g/cm³ or g/mL

c)

grams (g)

d)

centimeters (cm)

25.

The method(s) for finding volume include

a)

Mass/Volume

b)

Length x Width x Height

c)

Displacement

d)

Measuring with a ruler

26.

When finding the volume of an irregular object, what step comes next after filling the cylinder with water?

a)

Put object in cylinder

b)

Measure new water height

c)

Subtract the heights of the water

d)

Measure the original height of the water

27.
Which 2 kinds of particles make up the nucleus of an atom?
a)
electrons and neutrons
b)
electrons and nuclei
c)
protons and neutrons
d)
protons and kryptons
28.
Which particle is equal to the Atomic Number
a)
# of electrons
b)
# of neutrons
c)
# of protons
29.
Which particle carries a negative charge?
a)
protons
b)
neutrons
c)
electrons
30.

Which particle carries a positive charge?

a)

Electron

b)

Neutron

c)

Proton

31.

Which particle is neutral charged?

a)

Neutron

b)

Proton

c)

Electron

32.

Which describes a property of all elements?

a)

All elements are metals.

b)

All elements have six electrons.

c)

All elements exist in the solid phase.

d)

All elements are pure substances.

33.

A student put 200 milliliters (mL) of water into a pot, sets the pot on a burner, and heats the water to boil. When the pot is taken off the burner, it contains only 180 milliliters (mL) of water. What happened to the rest of the water?

a)

It condensed.

b)

It turned into water vapor.

c)

It was absorbed by the heat.

d)

It was used up.

34.

The ice cubes in a freezer are melting. Which change most likely is causing the ice cubes to melt?

a)

a decrease in the mass of the ice cubes

b)

an increase in the mass of the ice cubes

c)

an increase in the temperature inside the freezer

d)

a decrease in the temperature inside the freezer

35.

Define Atom

a)

a unit of matter, the smallest unit of an element that has all the characteristics of that element

b)

describes forces acting on an object that cancel each other

c)

smallest, basic unit of structure and function in a living thing; building block of life.

d)

process in which particles of a liquid change to gas, travel to the surface of the liquid and then into the air.

36.

What is a molecule?

a)

pure chemical substance

b)

The ability to dissolve in a solvent

c)

a unit of matter, the smallest unit of an element

d)

two or more atoms that are held together by a chemical bond

37.
Atoms with similar properties are most likely located...
a)
in the same period.
b)
in the same group.
c)
in different periods.
d)
to the right and left of each other.
38.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
39.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
40.
What is the atomic mass of Neon?
a)
10
b)
30
c)
10.18
d)
20.18
41.
What is the formula to solve for the neutron?
a)
Mass + Atomic Number= Neutrons
b)
Mass x Atomic Number = Neutrons
c)
Mass - Atomic Number = Neutrons
d)
Mass + Number of Protons = Neutron
42.

what is the biggest group on the table

a)

metals

b)

nonmetals

c)

metaloids

d)

halogens

43.

where are the metaloids found

a)

far left, vertical

b)

stair step/diagonal

c)

far right horizontal

d)

at the bottom

44.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
45.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
46.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
47.

A student mixes 125 grams of sugar, 250 grams of water and 5 grams of flavoring. The solution weighs...

a)

250 grams

b)

380 grams

c)

375 grams

d)

400 grams

48.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
49.
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
50.

Which of the following is NOT true about water?

a)

Water is considered a compound

b)

Water is a pure substance

c)

Water is an element

d)

Water is not an element

51.

A student observed bubbling and fizzing occurring during an experiment. What can the student conclude?

a)

A physical change occurred

b)

A chemical reaction produced a gas

c)

A chemical reaction produced a solid

d)

Nothing changed

52.

To show a chemical change, I hold a spoon full of sugar over a small flame. What would be the best evidence that a chemical reaction has occurred?

a)

The sugar gets hotter

b)

The sugar gets colder

c)

The sugar melts into a liquid

d)

The sugar turn a black color

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