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WorksheetsStudy Guide for 8th Grade Science ICSP
Total questions: 28
Worksheet time: 18mins
Name
Class
Date
1.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
2.
Where is the proton located?
a)
In the very dense nucleus
b)
Floating around in the negative electron cloud
c)
the loose nucleus
d)
the positive electron cloud
3.
The following element key shows how many protons?
a)
16
b)
15.999
c)
Oxygen
d)
8
4.
Which subatomic particle causes the nucleus to have a positive charge?
a)
Neutron
b)
Electrons
c)
Protons
d)
Valence electrons
5.
A neutron has what charge?
a)
Positive
b)
Negative
c)
It has no charge (it is neutral)
6.
An electron has what charge?
a)
Positive
b)
Negative
c)
It has no charge (it is neutral)
7.
A proton has what charge?
a)
Positive
b)
Negative
c)
It has no charge (it is neutral)
8.
How many protons does krypton have?
a)
84
b)
36
c)
48
d)
8
9.
How many electrons does oxygen have?
a)
8
b)
16
c)
2
d)
15
10.
How many neutrons does lithium have?
a)
3
b)
4
c)
6
d)
7
11.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
12.
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
13.
Freezing
a)
Solid to gas
b)
Liquid to solid
c)
Gas to solid
d)
Liquid to gas
14.
Which state of matter has tightly packed molecules?
a)
solid
b)
liquid
c)
gas
15.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
16.
Particles (molecules) in a ______________________ have more energy than the other states of matter.
a)
gas
b)
solid
c)
liquid
17.
What term describes a solid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
18.
What is condensation?
a)
gas to solid
b)
gas to liquid
c)
liquid to solid
d)
solid to liquid
19.
The speed of the molecules determines the _____.
a)
volume
b)
density
c)
pressure
d)
temperature
20.
The molecules in the picture are tightly held together with little movement. They have shape and energy. Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
21.
Molecules move quickest in which state of matter
a)
solid
b)
liquid
c)
gas
d)
solid, liquid and gas
22.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
23.
Water can be a solid, liquid, and a gas.
a)
True
b)
False
liquid
liquid
24.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.
25.
Under Charles's Law, _____________ temperature will cause the gas to move more rapidly.
a)
decreasing
b)
increasing
c)
leveling
d)
surface tension
26.
What kind of solid is represented here?
a)
amorphus
b)
crystalline
c)
liquid
d)
gas
27.
The plant is capturing the sun's energy. This is an example of a(n) ______________ reaction.
a)
endothermic
b)
exothermic
c)
boiling point
d)
freezing point
28.
According to the chart, what has a lower viscosity than water?
a)
honey
b)
ketchup
c)
motor oil
d)
acetone
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