Worksheets8th grade science EOY
Total questions: 30
Worksheet time: 57mins
Name
Class
Date
1.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
2.
How many electrons do atoms need to be stable?
a)
1
b)
2
c)
6
d)
8
3.
How many elements are in H2O?
a)
1
b)
2
c)
3
d)
4
4.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
5.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
6.
An object following a straight-line path at a constant speed
a)
has zero acceleration
b)
has no forces acting on it
c)
has a net force acting in the direction of motion
d)
none of these
7.
What would the d-t graph look like for an object travelling at a constant velocity?
a)
Horizontal line
b)
Straight line
c)
Curved line
8.
At what time the object made a U-turn?
a)
5th second
b)
10th second
c)
25th second
d)
5th and 25th second
9.
when did the object stayed still?
a)
first 10 seconds
b)
first 20 seconds
c)
20th ~30th seconds
d)
30th~40th seconds
10.
What drives tectonic plate movement?
a)
gravity
b)
coriolis effect
c)
convection currents
d)
the earth's magnetic core
11.
The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of
a)
subduction
b)
plate tectonics
c)
evolution
d)
seafloor spreading
12.
A rift valley forms at a
a)
convergent plate boundary
b)
divergent plate boundary
c)
transform boundary
d)
deep ocean trench
13.
The Alps are increasing in eleveation due to...
a)
seafloor spreading
b)
the action of earthquakes
c)
colliding tectonic plates
d)
transform faulting of a tectonic plate
14.
A break or crack in the Earth's crust is called a...
a)
plate
b)
fault
c)
fold
d)
crack
15.
What forms when an oceanic and continental plate converge?
a)
island arcs
b)
folded mountains
c)
volcanic mountains
d)
rift valleys
16.
Determine the contour interval
a)
10 m
b)
20 m
c)
50 m
d)
100 m
17.
What do close contour lines represent on a map?
a)
waterfall
b)
steep area
c)
gradual area
d)
river
18.
What do the v-shaped contour lines represent?
a)
mountains
b)
steep areas
c)
gradual areas
d)
rivers
19.
Match 1
a)
A
b)
B
c)
C
d)
D
20.
Match 2
a)
B
b)
C
c)
D
d)
E
21.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
22.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
23.
Which one is not a consumer?
a)
anemone
b)
bear
c)
shark
d)
vulture
24.
How many carnivores are shown in this food web?
a)
6
b)
4
c)
5
d)
3
25.
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
Grass > Grasshopper > Bird > Snake
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
26.
if an eagle/hawk population goes down what happens?
a)
predators are booming
b)
nuke
c)
Mouse population explodes
d)
nothing
27.
if there is a population increase on eagles what would happen?
a)
mouse population decreases
b)
nothing
c)
omit
d)
mouse population explodes
28.
what does impact mean?
a)
to become or make differint
b)
a living thing
c)
direct effect or change on
d)
omit
29.
A property that describes how matter reacts with other matter is a/an
a)
compound
b)
element
c)
mixture
d)
chemical property
30.
What is probably true if two elements are close to each other in the periodic table?
a)
One is a gas and on is a solid.
b)
They have similar properties.
c)
They have different properties.
d)
Neither one is a solid.
100 %
