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Science MS Review

Total questions: 131

Worksheet time: 2hrs 38mins

Name
Class
Date
1.
Everything is made up of little tiny things called _____
a)
compounds
b)
molecules
c)
atoms
d)
solids
2.
From the diagram, which particles are indicated with the arrow?
a)
electrons and protons
b)
protons and neutrons
c)
electrons and neutrons
d)
photons and nucleons
3.
These particles orbit around the nucleus of an atom.  What are they called?
a)
electrons
b)
protons
c)
neutrons
d)
photons
4.
In the center of the atom is something called _____
a)
the kernel
b)
the cell
c)
the nucleus
d)
the focal point
5.
The protons and neutrons are inside of the nucleus, and contain almost all of _____
a)
the charge of the atom
b)
the volume of the atom
c)
the mass of the atom
d)
the kinetic energy of the atom
6.
In terms of matter, the atom is almost entirely filled with _____
a)
orbiting electrons
b)
charged protons
c)
heavy neutrons
d)
empty space
7.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
8.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
9.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
10.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
11.
electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
12.
What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons?
a)
22
b)
11
c)
34
d)
23
13.
The atomic number of an elements is the total number of which particles in the nucleus?
a)
neutrons
b)
protons
c)
electrons
d)
protons and electrons
14.
An element has an atomic number of 76.  The number of protons and electrons in a neutral atom of the element are
a)
152 p+, 76 e-
b)
76 p+, 0 e-
c)
38 p+, 38 e-
d)
76 p+, 76 e-
15.
An atom has 5 protons, 7 neutrons and 5 electrons. What is the mass number of the atom?
a)
5
b)
7
c)
2
d)
12
16.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
17.
How many of these substances are elements?
a)
2
b)
3
c)
4
d)
5
18.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
19.
Subatomic particle that determines the identity of the atom
a)
proton
b)
nucleus
c)
electron
d)
neutron
20.
Hydrogen has 1 proton. It's atomic number is:
a)
0
b)
1
c)
2
d)
cannot be determined
21.
An atom has 10 protons and a mass of 18. It has __ neutrons
a)
10
b)
18
c)
28
d)
8
22.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
23.

What is it called when one or more electrons are transferred from one atom to another?

a)

Covalent Bond

b)

Ionic bond

c)

Ion

d)

Anion

24.

What is it called when two atoms share an electron?

a)

Ionic Bonding

b)

Covalent bonding

c)

Oxidation Number

d)

Valence Electron

25.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
26.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
27.

What is the charge of a sodium ion?

a)

+2

b)

+1

c)

-1

d)

-2

28.
Group 17 always has ions with a charge of 
a)
+1
b)
+2
c)
-1
d)
-2
29.
What charge will an Oxygen ion have? 
a)
+1
b)
-1
c)
+2
d)
-2
30.
If an element has 3 valence electrons, what charge will likely form on its ion ?
a)
+3
b)
+5
c)
-3
d)
-5
31.

How is an atom and ion different?

a)

An atom has a charge and an ion has no charge.

b)

An atom has no charge and an ion has a charge.

32.

All negative ion

a)

are non-metals

b)

gain electrons

c)

have a negative charge

d)

all of the above

33.

What charge will result if an ion loses electrons?

a)

positive

b)

negative

c)

neutral

34.

What charge will result if an ion gains 3 electrons?

a)

+3

b)

+1

c)

-3

d)

-2

35.

What charge will atoms in group 1 have?

a)

+2

b)

+1

c)

-1

d)

-2

36.

All atoms can become stable by...

a)

losing or gaining electrons to obtain a full valence (outer) shell

b)

losing or gaining protons to obtain a full valence (outer) shell

c)

losing or gaining neutrons to obtain a full valence (outer) shell

37.

What group does this atom belong to?

a)

Group 2

b)

Group 9

c)

Group 17

d)

Group 7

38.

Will this atom gain or lose electrons to become stable?

a)

gain

b)

lose

c)

it will stay as is. Electrons are not gained or lost.

39.

What will the ionic charge be for Iodine?

a)

+1

b)

-1

c)

+2

d)

-2

40.

Metals can be found...

a)

to the left of the metalloid staircase

b)

to the right of the metalloid staircase

c)

in the middle of the periodic table

d)

in group 16 to 18 only

41.

What two particles determine the mass number?

a)

Protons and electrons

b)

Electrons and neutrons

c)

Protons and neutrons

42.

What is the representation of an isotope?

a)

N-3

b)

Al+3

c)

Si

d)

P-33

43.
Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...
a)
ion
b)
mixture
c)
isotope
d)
neutral atom
44.
The atomic number is equal to _.
a)
the number of protons and electrons
b)
the number of neutrons only
c)
the total number of protons and neutrons
d)
the number of protons neutrons and electrons
45.
What is the charge on a lithium atom that looses 1 electron?
a)
+1
b)
0
c)
-1
d)
-2
46.
Helium (He atomic number 2) has 2 protons, 2 neutrons, and 2 electrons) is the He element shown above an atom, an element, or an isotope?
a)
atom
b)
cation  (+ ion)
c)
isotope
d)
anion (-)
47.
How many protons does this isotope of titanium have? Hint titanium has an atomic number of 22.
a)
48
b)
22
c)
26
d)
70
48.
Which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
49.
Carbon has an atomic number of 6 and an atomic mass of 12. Which elements are considered isotopes of carbon?
a)
Carbon-12
b)
Carbon-13
c)
Carbon-14
d)
Both Carbon-13 and Carbon-14
50.
The image shows that Hydrogen can become an isotope by adding a(n)..
a)
electron
b)
proton
c)
nuetron
d)
any of the above answers
51.

Fe is the ___________________ for iron

a)

atomic number

b)

chemical symbol

c)

atomic mass

d)

protons

52.

The horizontal rows on the periodic table are called

a)

groups

b)

families

c)

periods

d)

atomic numbers

53.

Each vertical column on the periodic table is called a...

a)

group

b)

tower

c)

period

d)

crew

54.

In each square of the periodic table, the number at the bottom is the:

a)

atomic number

b)

atomic mass

c)

chemical symbol

d)

element name

55.
The number at the top of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
Chemical Symbol
d)
Element Name
56.

On the periodic table, elements on the right side of the "stair-step" line are classified as:

a)

nonmetals

b)

metals

c)

gases

d)

Halogens

57.

These elements located on the "stair-step" line are sometimes called "semiconductors."

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Groups

58.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
59.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
60.

How many Valance electrons does Iodine Have?

a)

6

b)

16

c)

7

d)

17

61.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
62.
An element's identity is determined by the number of
a)
electrons.
b)
protons.
c)
neutrons.
d)
valence.
63.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
64.

Elements in the same group or family have the same number of

a)

neutrons

b)

valence electrons

c)

electrons

d)

energy levels

65.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
66.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
67.
Which element is not a metal?
a)
H
b)
Re
c)
Al
d)
B
68.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
69.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
70.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
71.
Sodium (Na) is found in period 
a)
3
b)
2
c)
4
d)
1
72.

found in group one of the periodic table; highly reactive

a)

Non-metals

b)

Transition Metals (Groups 3-12)

c)

alkali metals (group 1)

d)

metalloids (semimetals)

73.

not able to conduct heat or electricity, little to no metallic luster

a)

Non-metals

b)

noble gases

c)

atomic mass

d)

Neutron

74.

Halogens (Group 17)

a)

gas at room temperature, low boiling point.

b)

most reactive nonmetals

c)

The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds

d)

Number of protons and neutrons

75.

good thermal conductors, shiny, electric conductors, higher density and melting points than group

a)

alkali metals (group 1)

b)

Transition Metals (Groups 3-12)

c)

Non-metals

d)

metalloids (semimetals)

76.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
77.
a substance that is formed as the result of a chemical reaction
a)
Product 
b)
Reactant
c)
Starters
d)
Enders
78.
bond in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other
a)
Covalent Bond
b)
Ionic Bond
c)
Reaction Bond
d)
Null Bond
79.

in the chemical equation, tells us the number of atoms of each element in a compound

a)

Coeffecient

b)

Exponent

c)

Chemical Formula

d)

Calculator

80.
the symbolic representation of a chemical reaction
a)
Long Hand
b)
Short Hand
c)
Electron Configuration
d)
Chemical Equation
81.
a process or reaction in which the system absorbs energy from its surroundings; usually, but not always, in the form of heat
a)
Endothermic Reaction
b)
Exothermic Reaction
c)
Diffusion
d)
Fission
82.
a chemical reaction that releases energy by light or heat
a)
Endothermic Reaction
b)
Exothermic Reaction
c)
Diffusion
d)
Fission
83.
type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
84.
type of reaction in which two or more elements combine to form a more complex compound
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
85.
type of reaction in which a compound is broken down into its simple elements
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
86.
When a scientist mixed two chemicals, an exothermic reaction takes place. Which of the following would be proof that the reaction was exothermic?
a)
a change of color
b)
a change of state
c)
a temperature decrease
d)
a temperature increase
87.
Which of the following is a chemical change?
a)
water freezes to form ice
b)
sugar dissolves in water
c)
gasoline burns in a car engine
d)
a piece of metal expands when it is heated
88.
In the reaction methane + oxygen turns into carbon dioxide + water, the methane and oxygen are called _______________.
a)
reactants
b)
products
c)
neutrals
d)
energizers
89.
A change in the shape of an object is an example of _________________.
a)
a chemical change
b)
energy
c)
an endothermic change
d)
a physical change
90.
What type of change occurs when a new substance is formed that has different properties from the original substances?
a)
chemical change
b)
nuclear change
c)
physical change
d)
mutation
91.
Increasing the concentration of a reactant in a chemical reaction will _____________.
a)
decrease the rate of the reaction
b)
stop the reaction from happening
c)
increase the rate of the reaction
d)
have no effect on the rate of the reacion
92.
Which of the following is an example of a physical change?
a)
souring milk
b)
mixing baking soda and vinegar
c)
rusting metal
d)
mixing oil and vinegar
93.
In any chemical reaction, the mass of the products is always:
a)
slightly less than the mass of the reactants
b)
much less than the mass of the reactants
c)
the same as the mass of the reactants
d)
greater than the mass of the reactants
94.
Raising the temperature of a chemical reaction would make the reaction __________________.
a)
happen slower
b)
happen faster
c)
stop completely
d)
proceed as normal
95.
Your mother used pancake mix, eggs, and milk to make pancakes.  Which of these is the product?
a)
the pancake mix
b)
the eggs
c)
the milk
d)
the pancakes
96.

How do chemical reactions turn substances into new substances?

a)

with burning acid

b)

the molecules mix together and create new substances

c)

the atoms bonds break apart and combine back together in new ways

d)

the ionic compounds mix in water to form solutions

97.

How many Carbons are present on the reactant side?

a)

1

b)

2

c)

3

d)

4

98.

Why are chemical equations always balanced? Select ALL that apply.

a)

Matter cannot be created.

b)

Matter cannot be destroyed.

c)

Matter can only be rearranged/conserved.

d)

Matter doesn't matter.

99.

Some chemical reactions require a substance called a catalyst. The purpose of a catalyst is

a)

to warm up the reaction

b)

to speed up the reaction

c)

to create more reactants

d)

to stop the reaction

100.

Is this chemical equation balanced? Why or why not? Choose the BEST answer.

a)

Yes, the amount of atoms for each element are equal on both the reactant and product side.

b)

No, the carbons are not the same number on both the reactant and product side.

c)

No, neither the carbons or hydrogens are the same amount on both the reactant and product side.

d)

No, none of the elements (carbon, hydrogen, or oxygen) are the same amount on both the reactant and product side.

101.

A(an) ______ is the number that appears before a formula in a chemical equation.

a)

subscript

b)

coefficient

c)

ratio

d)

denominator

102.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
103.
How many states of matter have we learned about?
a)
4
b)
1
c)
3
d)
2
104.
What are the states of matter?
a)
solid, liquid, and juice
b)
solid and liquid
c)
solid and gas
d)
solid, liquid, and gas
105.

Which form of matter has a definite shape and takes up space (has definite volume)?

a)

liquid

b)

solid

c)

gas

d)

clay

106.
Which form of matter take the shape of a container like this juice?
a)
liquid
b)
solid
c)
glass
d)
gas
107.
Which form of matter fills the space like it has in the balloon?
a)
liquid
b)
string
c)
solid
d)
gas
108.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
109.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
110.
My glass of ice water is sitting in the sun and has droplets of water on the outside of the glass. What is happening?
a)
condensation
b)
evaporation
c)
melting
d)
freezing
111.
What are the two types of mixtures? 
a)
element and sub-atomic
b)
atoms and compounds
c)
homogeneous and heterogeneous
d)
element
112.
Halo-halo can be classified as what type of Mixtures?
a)
element
b)
solution
c)
homogeneous
d)
heterogeneous
113.
A glass of Kool Aid/ Tang juice can be classified as
a)
element
b)
homogeneous
c)
heterogeneous
d)
suspension
114.
It is a liquid mixture in which the minor component (the solute) is uniformly distributed with the major component (the solvent).
a)
solution
b)
element
c)
sub-atomic
d)
dissolution
115.
A solution consists of two parts. One part is the substance that is dissolved. What is the name of this part of a solution?
a)
solute
b)
solvent
c)
dissolution
d)
mixture
116.
The other component of a solution is the part that does the dissolving. What is the name of this component?
a)
solvent
b)
dissolution
c)
element
d)
mixture
117.

A mixture of two or more uniformly dispersed substances is a ________________.

a)

colloid

b)

solution

c)

suspension

118.
Milk is a 
a)
solution
b)
suspension
c)
colloid
119.
Italian dressing is a
a)
solution
b)
suspension
c)
colloid
120.
What type of mixture separates upon standing?
a)
Solution
b)
Alloy
c)
Colloid
d)
Suspension
121.
Which are different types of mixtures
a)
suspension
b)
solution
c)
colloid
d)
all the above
122.
A colloid is a mixture that contains undissolved particles. 
a)
True
b)
False
123.
type of mixture that doesn't separate on its own but still contains undissolved particles
a)
solution
b)
colloid
c)
suspension
124.
In this mixture, which of the following will be the solute?
a)
The water in the glass
b)
The glass that holds the final mixture
c)
The solution containing both powder and water
d)
The powder on the spoon
125.
Sugar water let's light pass through, and is a homogeneous mixture
a)
solution
b)
suspension
c)
colloid
126.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
127.

Milk is a heterogeneous mixture, and scatters light.

a)

solution

b)

suspension

c)

colloid

128.
A mixture whose particles are larger than the size of a molecule but smaller than particles that can be seen with the naked eye is known as a __.
a)
solution
b)
suspension
c)
colloid
d)
solvent
129.
The most commonly used solvent in food is ___
a)
sodium chloride
b)
vinegar
c)
water 
d)
citric acid
130.

Which of the following has the largest particles?

a)

Solution

b)

Suspension

c)

Colloid

131.

Which of the following appear to be clear (are not cloudy)?

a)

Solution

b)

Suspension

c)

Colloid

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