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Science Semester 1 Review Quiz

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

Which of the following is representative of an element?

a)

H20

b)

CH4

c)

CO2

d)

Na

2.

Which of the following is a compound?

a)

Co

b)

CO2

c)

Na

d)

H

3.

How many different elements are in the compound?

a)

12

b)

3

c)

24

d)

6

4.

What is the difference between Co and CO?

a)

CO is an element but Co is a compound

b)

Nothing is different. They are the same thing.

c)

CO is two elements and Co is only one element

d)

Co is not a pure substance

5.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements and Compounds
d)
Mixture of Elements
6.
Classify the picture with the correct label.
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
7.
What element is found in all four areas of the earth that we studied?
a)
Sodium (Na)
b)
Oxygen (O)
c)
Carbon (C)
d)
Nitrogen (N)
8.

The Earth, living matter, oceans, and atmosphere are composed of-

a)

so many different elements that they cannot all be listed.

b)

all of the elements on the Periodic Table equally.

c)

a limited number of known elements.

d)

no elements at all.

9.

What graph is represented?

a)

Living Things

b)

Ocean

c)

Crust

d)

Atmosphere

10.

Which elements are to the LEFT of the zigzag?

a)

metals

b)

nonmetals

c)

metalloids

11.
When two or more elements chemically combine
a)
element
b)
compound
c)
mixture
d)
solution
12.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
13.
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
14.
What units can be used to express density?
a)
g/mL
b)
grams
c)
millimeters
d)
milliliters
15.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
16.
What is the volume of the rock?
a)
30cm3
b)
10cm3
c)
40cm3
d)
20cm3
17.

Density is mass divided by volume.

a)

True

b)

False

18.
The water is ______ dense than the boat
a)
more
b)
less
19.
If you poured 3 liquids that do not mix how could you tell which one is the most dense?
a)
The liquid on top
b)
The liquid in the middle
c)
The liquid at the bottom
20.

Why does the egg not sink or float?

a)

it is more dense than the water

b)

it is less dense than the water

c)

it has the same density as the water

d)

it is light

21.
Which element is a metalloid?
a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
22.
Which element is least likely to conduct heat and electricity? 
a)
O
b)
Si
c)
Po
d)
Ca
23.
Malleability is ___________
a)
the way light is reflected off a surface.
b)
how well a piece of matter conducts electricity
c)
A.  the capability of being drawn out into thin wires or threads.
d)
the capability of being hammered out thin.
24.
Density is 
a)
weight/volume
b)
mass/volume
c)
weight/mass
d)
volume/mass
25.
How would this element be classified?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Metamorphic
26.
Is mold growing on cheese a physical or chemical change?
a)
Physical 
b)
Chemical
27.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical 
b)
Chemical
28.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
29.

Vibrations produce _______ energy.

a)

chemical

b)

sound

c)

potential

d)

light

30.
The diagram to the right shows a solid iron bar that is being heated in a flame. The primary method of heat transfer in the solid iron bar is—
a)
convection
b)
conduction
c)
absorption
d)
radiation
31.
Which of the following are kinds of heat transfer.
a)
Conduction
b)
Convection
c)
Radiation
d)
All of the above
32.
Convection is heat transfer by-
a)
Touch an object
b)
The heating and cooling of a fluid
c)
Electromagnetic Waves
33.
When the 2nd story of a house is warmer than the 1st floor of a house is heat transfer through 
a)
conduction
b)
convection
c)
radiation
d)
thermal equilibrium
34.

Uneven heating and cooling of the Earth's surface forces the air to circulate in an attempt to find equilibrium or balance. This type of heat transfer is an example of ______.

a)

Convection

b)

Conduction

c)

Radiation

d)

Solar energy

35.

This Styrofoam cup is a good example of a _________.

a)

Conductor

b)

Insulator

c)

Drinking device

d)

Solid

36.

Copper wire is a good example of a _____________.

a)

Conductor

b)

Insulator

c)

Metal

d)

Thermometer

37.

Molecules move at the same speed no matter what the temperature.

a)

true

b)

false

38.

Thermal energy comes from ________________.

a)

how hot something is

b)

the movement of molecules

c)

the flow of electrons

39.

electromagnetic waves

a)

conduction

b)

convection

c)

radiation

40.

Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?

a)

The molecules are moving faster in Diagram A

b)

The molecules are moving slower in Diagram A

c)

The molecules are moving at the same rate in both diagrams

41.

The atomic number identifies the number of __________.

a)

electrons

b)

atoms

c)

protons

d)

neutrons

42.

The number 16 for the atomic element sulfur is the

a)

ionic number

b)

isotope

c)

atomic mass

d)

atomic number

43.

How many protons does sulfur have?

a)

32

b)

16

c)

48

d)

12

44.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
45.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

46.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
47.
Which is the name of the kind of solid substance formed in this figure?  
a)
aqueous 
b)
precipitate
c)
acid
d)
synthesis 
48.
The number of atoms of oxygen in 
Cu(NO3)2 is ...
a)
2
b)
5
c)
6
d)
zero 
49.
What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
50.
What is the right part of a chemical equation called...
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
51.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released 
52.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
53.

The vertical (up and down) columns in the Periodic Table are called

a)

groups

b)

towers

c)

periods

d)

atomic numbers

54.
The horizontal row on the periodic table is called a
a)
group
b)
family
c)
period
d)
atomic number
55.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
56.

How many valence electrons does Helium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

57.

How many valence electrons does Potassium Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

58.
a)
2
b)
8
c)
3
d)
13
59.
How many valence electrons are found in atoms of group 14?
a)
4
b)
3
c)
14
d)
16
60.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

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