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Worksheets1st Semester Review: Science
Total questions: 30
Worksheet time: 20mins
Name
Class
Date
1.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
2.
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
3.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
4.
What is one bad reason why we should NOT conserve coal?
a)
It creates pollution
b)
It brings fresh air
c)
It creates bad storms
d)
It created diseases
5.
Which of the following tables correctly lists the physical properties of metals and nonmetals?
a)
A
b)
B
c)
C
d)
D
6.
How many different elements are in this chemical formula: C2H2ClK3
a)
6
b)
8
c)
2
d)
4
7.
What is energy conservation?
a)
Adding up all your energy use
b)
Reducing energy use
8.
Using wind energy will reduce our dependence on fossil fuels.
a)
true
b)
false
9.
What is the main reason why we all don't use solar energy?
a)
They don't work at night
b)
On cloudy days we would need backup or storage systems which is expensive and some areas do not receive sun
c)
They can't be transported to many places
d)
They are exclusive to only certain countries
10.
What is an advantage of nuclear energy?
a)
radioactive waste
b)
no air pollution
c)
we will never run out
d)
it is the safest way to make energy
11.
The ability for heat or electricity to flow through an object is...
a)
conductivity
b)
magnetism
c)
electricity
d)
gravity
12.
__________ is the way a mineral shines, or reflects light.
a)
Streak
b)
Hardness
c)
Luster
d)
Cleavage
13.
All of the following would classify an element as a metal except?
a)
Dull
b)
Luster
c)
Malleable
d)
Hard
14.
Metalloids are weak conductors of heat and electricity.
a)
TRUE
b)
FALSE
15.
Element or Compound?
Au
Au
a)
Element
b)
Compound
16.
What is the volume of Spongebob Squarepants based on the displacement of the water in the graduated cylinder.
a)
50mL
b)
52mL
c)
102mL
d)
2mL
17.
Rust on an iron fence
a)
Chemical Change
b)
Physical Change
18.
Density
a)
Physical Property
b)
Chemical Property
19.
Flammability or Combustibility
a)
Physical Property
b)
Chemical Property
20.
Is salt (NaCI) a compound or an element
a)
Compound
b)
element
21.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
22.
What is the density of water?
a)
1.84
b)
1
c)
2.268
d)
.92
23.
In the circuit shown, where is the energy transferred?
a)
In the battery
b)
In the wires
c)
In the lightbulb
d)
In the on off switch
24.
What kind of energy does a wind turbine contain and produce?
a)
Mechanical and Electrical
b)
Potential
c)
Nuclear
d)
Chemical and Mechanical
25.
What kind of energy does a battery contain, and produce?
a)
Chemical
b)
Potential and Kinetic
c)
Mechanical
d)
Chemical and Electric
26.
Where is potential energy the highest?
a)
W
b)
X
c)
Y
d)
Z
27.
Where is kinetic energy the highest?
a)
W
b)
X
c)
Y
d)
Z
28.
Which of the following is an example of convection?
a)
A hair dryer is drying up your hair.
b)
When the AC or heater changes the temperature.
c)
When a car engine turns hot after being turned on.
d)
When you are making soup and the water is rising and lowering.
29.
What heat transfer happens when you burn your hand by touching a fire?
a)
Radiation
b)
Conduction
c)
Convectio
d)
I don't know!!!!!!!!!!!
30.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
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