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Worksheets8th-Grade Science Review
Total questions: 31
Worksheet time: 15mins
What is the formula for density?
d=m/v
m=d/v
v=d/m
d=v/m
If an object you touch feels cold...
it is giving you thermal energy.
it has no thermal energy.
it is creating thermal energy.
it is stealing your thermal energy.
Who kidnapped Patches???
Ron Grady
Taylor Shift
Kim Dardashian
Jake Shelton
Which of the following could be a unit of density?
g
cm3
g/m
g/cm3
Which of the following could be a unit of mass?
g
cm3
g/m
g/cm3
Which of the following could be a unit of volume?
g
cm3
g/m
g/cm3
If an object with a density of 1 g/mL is dropped into a bucket of pure water it will...
sink
float
suspend
bounce off the surface
If an object with a density of .1 g/mL is dropped into a bucket of pure water it will...
sink
float
suspend
bounce off the surface
The transfer of energy through collisions of particles is called _____.
conduction
convection
radiation
Which of the following is probably the best conductor?
a solid piece of cheese
gaseous sulfur
liquid nitrogen
An object with a higher temperature always has more thermal energy.
true
false
In a physical change, if the substance heats up it is called _____.
endothermic
exothermic
not this again!!!
In a physical change, if the substance cools down it is called _____.
endothermic
exothermic
not this again!!!
In a chemical change, if the substance cools down it is called _____.
endothermic
exothermic
not this again!!!
The transfer of energy through waves is called _____.
conduction
convection
radiation
Lava lamps are examples of ______.
conduction
convection
radiation
Name that state of matter!
solid
liquid
gas
non-newtonian fluid
If you turn up the dial on your stove while water is boiling...
the temperature of the boiling water increases.
the temperature of the boiling water stays the same.
the temperature of the boiling water decreases.
Distillation separates a mixture by using the substance's different _____.
boiling points
melting points
freezing points
condensation points
Using a filter can separate salt from sand by using the substances' different _____.
boiling points
solubility
magnetic properties
color
Which of the following is NOT a characteristic property?
density
boiling point
shape
freezing point
What is the 6th element on the Periodic Table?
carbon
boron
helium
nitrogen
Which of the following is a sign of a chemical change?
bubbles when you add heat
bubbles when you don't add heat
You briskly walk for 4 seconds at 5 meters per second. How far do you walk?
20 m
20 mi
20
20 ms
What is the net force acting on this object?
17 N right
17 N left
35 N
0 N (the forces are balanced)
Which of these equations shows Newton's second law of motion?
F = m x a
m = F x a
a = m/F
m = a/F
Newton's first law is often called the law of _____.
inertia
momentum
movement
the land
According to Newton's third law, if you hit a wall with a force of 20 N, what force does the wall exert on you?
20 N
0 N
a little less than 20 N
a little more than 20 N
When on a roller coaster do you have the most potential energy?
the top of the tallest hill
the bottom of the tallest hill
halfway up the tallest hill
halfway down the tallest hill
When does a rubber band have the most potential energy?
when it's stretched the farthest possible
when it gets launched through the air
when it's lying at rest on the table
When you clap your hands, what energy transformation occurs?
kinetic --> sound
sound --> kinetic
chemical --> sound
light --> heat
