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2024 Physical Science Midterm Exam Review

Total questions: 61

Worksheet time: 1hrs 21mins

Name
Class
Date
1.
A testable answer to a scientific question
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
2.
This is the group that we will compare our experimental group to. This group stays "normal."
a)
Control Group
b)
Experimental Group
c)
 Normal Group
d)
Weird Group
3.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
4.
This variable in an experiment is the one being changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
5.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
6.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
7.
An experiment is conducted to test how different cleats change an athletes running speed.  Six different types of cleats are tested and the 100m run time is recorded.  What is the independent variable?
a)
The type of cleat
b)
The run time
c)
The 100 meters
d)
The athlete
8.
Squidward found new reeds to tryout for his clarinet.  He used an APPLAUSOMETER to measure applause after playing  Under the Sea with each reed.  The results were put in the table.
What was the independent variable?
a)
The Song
b)
The Reed
c)
The Applause
9.
"The insect in Container B has six appendages" is an example of what type of scientific observation?
a)
quanitative
b)
qualitative
c)
inference
d)
hypothesis
10.
There are two types of data. Which type of data involves descriptions that cannot be counted or measured?
a)
qualitative
b)
quantitative
11.

What is a factor of an experiment that is measured or observed?

a)

dependent variable

b)

independent variable

c)

control group

d)

experimental group

12.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
sublimation
b)
condensation
c)
evaporation
13.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
14.
The reverse of condensation is
a)
sublimation
b)
evaporation
c)
boiling
15.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
16.
How is a solid defined?
a)
Indefinite shape and indefinite volume
b)
Definite shape and definite volume
c)
Found in the stars
d)
Definite volume, indefinite shape
17.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
18.
What is vaporization?
a)
a gas becoming a liquid
b)
a liquid becoming a solid
c)
a gas becoming a solid
d)
a liquid becoming a gas
19.
a)
It changes.
b)
It doesn't change.
c)
It decreases
d)
It increases
20.

contains 2 or more elements that are chemically combined

a)

element

b)

compound

c)

mixture

21.

contains 2 or more substances that are physically combined

a)

element

b)

compound

c)

mixture

22.

carbon dioxide, CO2, is an example of a(n)

a)

element

b)

compound

c)

mixture

23.

gold, Au, is an example of a(n)

a)

element

b)

compound

c)

mixture

24.

Kool-aid is a example of a(n)

a)

element

b)

compound

c)

mixture

25.

diagram "a" is an example of a(n)

a)

element

b)

compound

c)

mixture

26.

diagram "b" is an example of a(n)

a)

element

b)

compound

c)

mixture

27.

diagram "c" is an example of a(n)

a)

element

b)

compound

c)

mixture

28.

diagram "d" is an example of a(n)

a)

element

b)

compound

c)

mixture

29.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
30.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of elements
31.

The smallest unit of an element that maintains the properties of that element is a(n)

a)

molecule

b)

atom

c)

substance

d)

compound

32.

How many atoms are in a single molecule of Fe2O3?

a)

2

b)

3

c)

5

d)

6

33.

Which of the following is an element?

a)

salt

b)

iron

c)

nylon

d)

sand

34.

A chemical change occurs whenever

a)

substances are mixed

b)

objects change shape

c)

hot objects melt

d)

new substances are formed

35.

Which of the following is a physical change?

a)

dissolving

b)

evaporating

c)

bending

d)

all of these

36.

The chemical formula for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid?

a)

3

b)

5

c)

6

d)

7

37.

Which of the following is not an example of a physical property?

a)

freezing point

b)

reactivity

c)

boiling point

d)

density

38.
What is the name of the group that never reacts--ever ever they are stable with a full outermost ring!!!
a)
noble gases
b)
transition
c)
halogens
d)
borons
39.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
40.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
41.
An atom in the ground state has two electrons in its first shell and six electrons in its second shell. What is the total number of protons in the nucleus of this element?
a)
5
b)
2
c)
7
d)
8
42.
Which of these is NOT a halogen?
a)
fluorine
b)
bromine
c)
carbon
d)
 astatine
43.
If an element GAINS 2 electrons, what will its ion charge be?
a)
plus 1
b)
plus 2
c)
minus 1
d)
minus 2
44.
Which term refers to atoms that have LOST electrons?
a)
anions
b)
cations
45.
which term refers to atoms that have GAINED electrons?
a)
cations
b)
anions
46.
Gold, Copper, and Silver belong to the _________ metals.
a)
alkali
b)
alkaline earth
c)
transition
d)
non-
47.
Elements are arranged by _____ on the periodic table.
a)
number of protons
b)
number of neutrons
c)
atomic mass
d)
color
48.
Elements on the right side of the of the zigzag line are normally?
a)
non metals
b)
metals
c)
metalloids
d)
rare earth metals
49.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
50.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
51.
Which of the following is an ionic compound:
a)
CH4
b)
I2
c)
LiBr2
d)
CO
52.
Which of these combinations is an ionic compound made of?
a)
Metal and Metal
b)
Nonmetal and Nonmetal
c)
Metal and Nonmetal
d)
Cation and Cation
53.
Name this compound: 
KF
a)
Potassium fluoride
b)
Potassium fluorite
c)
Fluorine potasside 
d)
Potassium fluorate
54.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
55.
What formula results when Ca+2  and  Br- ions bond?
a)
Ca2Br2
b)
CaBr
c)
Ca(br)2
d)
CaBr2
56.

NaCl

a)

Sodium monochlorine

b)

Sodium chloride

c)

Sodium monochloride

d)

Sodium chlorine

57.

MgI2

a)

Magnesium Iodine

b)

Monomagnesium di-iodide

c)

Magnesium iodide

d)

Magnesium tetraiodide

58.

N2O

a)

Nitrogen Oxide

b)

Dinotrogen dioxide

c)

Nitrous dioxide

d)

Nitrogen Oxygen

59.

AlCl3

a)

Aluminum dichlorine

b)

Aluminum trichlorine

c)

Monoaluminum chloride

d)

Aluminum chloride

60.

What is the process called when a solid changes directly into a gas?

a)

sublimation

b)

melting

c)

condensation

d)

evaporation

61.

Which element is in period 3 and group 16 of the periodic table?

a)

Chlorine

b)

Oxygen

c)

Sulfur

d)

Selenium

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