NEW
Font size
S
M
L
XL
WorksheetsSOL REVIEW 8th Grade
Total questions: 80
Worksheet time: 3600secs
Name
Class
Date
1.
According to the data in the table, which sample of matter is most likely a metal?
a)
1
b)
2
c)
3
d)
4
2.
When plants undergo photosythesis they produce--
a)
carbon dioxide
b)
oxygen
c)
hydrogen
d)
nitrogen
3.
A burning candle is the process of transforming--
a)
heat energy into chemical energy
b)
chemical energy into light and heat
c)
chemical energy into mechanical energy
d)
chemical energgy into nuclear energy
4.
Mendel proposed that traits observed in pea plants resulted from a combination of "factors" inherited from each parent. His description of these "factors" can be considered the first scientific definition of the role of -
a)
ribosomes
b)
meiosis
c)
genes
d)
cell nuclei
5.
Which of the organisms in a forest ecosystem is an example of a producer?
a)
Squirrels
b)
Oak trees
c)
Black bears
d)
Bacteria
6.
Botanists often use leaves to identify plants. Which trait of the leaves shown would be most useful in identifying the plants they came from?
a)
color of the leaf
b)
function of the leaf
c)
arrangement of the leaves on a stem
d)
presence or absence of veins
7.
A tapeworm lives in human intestines, absorbing the nutrients that would normally be absorbed by the person. This eventually causes the person health problems. The relationship between the tapeworm and the human is -
a)
parasite/host
b)
predator/prey
c)
herbivore/omnivore/omnivore
d)
consumer/producer
8.
Of the states of matter, gas is the ONLY state that--
a)
is fluid
b)
has mass
c)
is highly compressible
d)
has a definite shape
9.
All of these can be inherited by people EXCEPT-
a)
height
b)
eye color
c)
blood type
d)
language
10.
During which phase does the Moon receive sunlight only on the side facing away from the Earth?
a)
full moon
b)
new moon
c)
waning gibbous
d)
waxing gibbous
11.
The line graph shows five years of data about a dog. What information does the graph show?
a)
How the mass of the dog changed
b)
how much food the dog consumed
c)
What kinds of food the dog consumed
d)
when the dog was measured each month
12.
During which phase does the Moon receive sunlight only on the side facing away from the Earth?
a)
full moon
b)
new moon
c)
waning gibbous
d)
waxing gibbous
13.
Which of the following is an example of static electricity?
a)
A dry cell battery connected to wires lights up a light bulb
b)
A balloon sticks to a wall after it is rubbed with a piece of wool
c)
A magnet sticks to a refridgerator door made of metal
d)
a light switch that is turned on runs a ceiling fan
14.
A lab group measured how far two rubber bands stretched when attached to a 100 gram masses. Five measurements were made for each rubber band. what is the range of the data collected for rubber band B?
a)
0.3 cm
b)
0.5 cm
c)
2.7 cm
d)
2.8 cm
15.
A coal-burning facility is constructed in an area containing several pond ecosystems. How will this human activity most likely affect the pond ecosystems?
a)
More nutrients will be available.
b)
Organism diversity will increase.
c)
Disease will become less common.
d)
Water quality will be reduced.
16.
Which characteristic is used to classify frogs into a different phylum from squid, snails, and jellyfish?
a)
Frogs are predators.
b)
Frogs breathe oxygen.
c)
Frogs have backbones.
d)
Frogs live on land
17.
The illustrations shows a wave. The wavelength is the distance between points--
a)
1 and 2
b)
1 and 4
c)
2 and 3
d)
2 and 4
18.
Which is an SI metric unit measurement that is used to record the head transfer of a solution in a classroom investigation?
a)
Liter
b)
Newton
c)
Volt
d)
Degree Celsius
19.
Black bears roam over large territories. What effect would building shopping centers in these territories have on these bears?
a)
Promote an increase in black bear reproduction
b)
Stabilize the black bear population
c)
reduce the black bears' habitat
d)
introduce a new bear population to the area
20.
According to the data in the table, which sample of matter is most likely a metal?
a)
1
b)
2
c)
3
d)
4
21.
When plants undergo photosythesis they produce--
a)
carbon dioxide
b)
oxygen
c)
hydrogen
d)
nitrogen
22.
Expansion joints such as these are put on bridges because the concrete expands and contracts. This happens when -
a)
chemicals get on the concrete
b)
the temperature changes
c)
the amount of light changes
d)
the concrete gets wet
23.
How far offshore is the deepest point of the ocean on this graph?
a)
0
b)
5000 m
c)
160 km
d)
240 km
24.
In a food chain, the numbers of each type of population are usually in a relatively stable combination. A diagram of a food chain is shown above. If humans interfered by spraying an insecticide to kill the insects, what would be the next thing that would happen?
a)
The number of hawks would increase
b)
The number of songbirds would decrease
c)
the number of snakes would increase
d)
the number of grass plants would decrease
25.
Which of the following causes the Sun to appear to set?
a)
The revolution of the Sun
b)
The rotation of the Earth
c)
The revolution of the Earth
d)
The rotation of the Sun
26.
An electric light bulb is hot to touch because--
a)
current passing through it produces heat
b)
its magnetic field produces a large amount of heat
c)
evaporation causes an object to heat up
d)
its chemical reachtions produce heat
27.
Organisms that absorb nutrients from dead plants and animals are called
a)
Carnivores
b)
Decomposers
c)
Herbivores
d)
Producers
28.
Which instrument would most accurately and precisely determine the mass of a toy car?
a)
An electronic light meter
b)
A spring scale
c)
A triple-beam balance
d)
A graduated cylinder
29.
The diagram below shows a block from the periodic table. The number six represents the ---
a)
atomic mass of the element Carbon
b)
atomic number of the element Carbon
c)
number of newtrons in the element of Carbon
d)
number of valence electrons in the element Carbon
30.
Each student in a science class of 25 conducts the same experiment. One student gathers all the data from her classmates and summarizes the results of the experiment for the class. She compares the data she personally recorded with the class data. Which of these might indicate to her that her results are valid?
a)
Three other classes performed the same experiment.
b)
The same experiment was repeated two years in a row.
c)
Many other students recorded data similar to hers
d)
Another student in her class reached a different conclusion.
31.
Thrips are tiny insects that can easily be seen on roses. The thrip population changes shown in the graph above are probably caused by -
a)
increases in human population
b)
a major climatic change
c)
seasonal changes
d)
increased use of insecticides
32.
A student designs and builds a 1:1000 scale model of the Mt. Fuji volcano in Japan. Since Mt. Fuji is about 3,800 m high, what is the height of his scale model?
a)
0.38 m
b)
3.8 m
c)
380 m
d)
3,800
33.
A mixture of iron filings and sulfur can easily be separated by--
a)
placing the mixture in water
b)
performing a chemical reaction
c)
heating the mixture
d)
using a magnet
34.
Venus, the moon, Mars and the sun are all visible in our sky. All but one of these reflect light from another source. which of the following produces its own ligh?
a)
Sun
b)
moon
c)
Mars
d)
Venus
35.
Which air pollutant decreased the most from 1970-1991?
a)
Lead
b)
Carbon monoxide
c)
Particulates
d)
Sulfur oxides
36.
Which air pollutant decreased the most from 1970-1991?
a)
Lead
b)
Carbon monoxide
c)
Particulates
d)
Sulfur oxides
37.
Which of the following could best be used to demonstrate energy being transformed from electricity to heat?
a)
a magnifying glass
b)
triple beam balance
c)
toaster
d)
a gas oven
38.
Which of these best describes a relationship shown by this African energy pyramid?
a)
The lion is a predator of the giraffes.
b)
The lion is the prey of the giraffes.
c)
Giraffes are the prey of the trees.
d)
Giraffes are predators of the lion.
39.
Water is an example behind a dam is am example of what kind of energy?
a)
Potential
b)
Kinetic Energy
c)
Chemical energy
d)
Solar energy
40.
Which organelle functions as a place to store extra water?
a)
Vacoule
b)
Chloroplasts
c)
Nucleus
d)
Cell membrane
41.
Which process is a physical change?
a)
melting ice
b)
burning paper
c)
acetic acid reacting to baking soda
42.
What process makes food for plants?
a)
reproduction
b)
photosynthesis
c)
respiration
d)
condensation
43.
In the diagram, what essential part of an electric circuit is missing at position X?
a)
load
b)
on/off switch
c)
wires
d)
electrical source
44.
Which animal has a life span closest to that of a sheep?
a)
Dog
b)
Cat
c)
Horse
d)
Cow
45.
Which of the following has the least effect on lake water temperature?
a)
The depth of the water
b)
The angle of incoming sun rays
c)
the number of fish in the lake
d)
the lake's surface area
46.
When a base is mixed with an acidic solution, neutralization occurs because--
a)
base reaches absolute zero
b)
acid evaporates
c)
base chemically reacts with acid
d)
mass of solution increases
47.
Fossil fuels such as gas, oil, and coal have what kind of energy?
a)
mechanical energy
b)
chemical energy
c)
nuclear energy
d)
electrical energy
48.
From the data given in this table, which characteristics help classify the seashells as belonging to the Tellin family?
a)
color, size and hinge type
b)
color, size, and water temperature
c)
hinge tyepe, location, and water temperature
d)
size, color, and location
49.
DNA is essential to living organisms because it---
a)
carries the genetic code
b)
is a spiral helix
c)
can prevent diseases
d)
can break apart
50.
After fishing in the ocean, a student left his fishing gear in the sun to dry. Later, he noticed that small white crystals had formed on the rod, reel, and fishing line. Which of these is the best explanation of what occured?
a)
The fish that were caught left scales on the fishing gear.
b)
The water evaporated from the fishing gear, and salt from the ocean was left behind.
c)
The water evaporated from the fishing gear, and sand was attracted to it.
d)
The salt in the ocean water reacted with the fishing fear and caused it to rust.
51.
Which of these shows the correct sequency of development?
a)
organs, cells, tissues, systems
b)
cells, tissues, organs, systems
c)
System, tissues, cells, organs
d)
tissues, cells, systems, organs
52.
What type of energy does the windmill use to do work?
a)
mechanical
b)
nuclear
c)
chemical
d)
solar
53.
Which of these would be the best way to prove the pine stick is more flexible than an oak stick?
a)
A
b)
B
c)
C
d)
D
54.
Because zinc can combine with other substances but cannot be changed into simpler substance by an ordinary chemical process, zinc is classified as-
a)
a compound
b)
a mixture
c)
an element
d)
an acid
55.
Astronomers view objects in space through scientific instruments known as -
a)
microscopes
b)
hygrometers
c)
telescopes
d)
barometer
56.
Which of the following is a true statement about the magnetic field between two magnets?
a)
The south pole of one magnet is attracted to the south pole of the other magnet.
b)
The south pole of one magnet is attracted to the north pole of the other magnet.
c)
The south pole of one magnet is attracted to both poles of the other magnet
d)
The north pole of one magnet is attracted to the north pole of the other magnet.
57.
What most likely happened to species that are found in the fossil record but have no living members?
a)
They had offspring of a different species.
b)
They mutated to other species.
c)
They became extinct.
d)
They never really existed.
58.
According to the chart, on which planet would a ball fall the fastest?
a)
Earth
b)
Saturn
c)
Jupiter
d)
Neptune
59.
In the chemical formula for ammonia, NH3, what does the subscript 3 represent?
a)
The number of nitrogen and hydrogen atoms in each molecule of ammonia
b)
The number of hydrogen atoms in each molecule of ammonia
c)
The number of ammonia molecules that will bond together
d)
The number of nitrogen atoms in each molecule of ammonia
60.
Which of these is a result of burning fossil fuels?
a)
acid rain
b)
clean water
c)
hydroelectric energy
d)
solar energy
61.
Mr. Krab's is trying to sell more Krabby Patty's. He advertises his food after different sporting events and counts how many Krabby Patty's he sells each time. What is the independent variable (IV)?
a)
Krabby Patty's
b)
Different Sporting Events
c)
Mr. Krab's
d)
The number of Krabby Patty's sold.
62.
A student wanted to test the hypothesis that adding antifreeze to water lowers the freezing point of water. The student found that pure water froze at 0o C, while the water/antifreeze mixture froze at -20o C. In order to confirm the results, the student should repeat the experiment using
a)
a container of a different size.
b)
a different amount of antifreeze.
c)
a different amount of water.
d)
exactly the same set-up as the first experiment.
63.
Which of the following would be an example of quantitative data?
a)
a yellow liquid was produced
b)
it got colder
c)
the car had the speed of 65 miles per hour
d)
the dog barked all night
64.
C + O2 ---------> CO2According to this equations, what happened to the carbon and oxygen?
a)
The combined chemically to form a new compound.
b)
They combined chemically to form carbon and oxygen.
c)
They combined physically to form a new mixture.
d)
They combined physically to form a new element.
65.
The average distance from Earth to the Moon is 384, 401 km. How is the distance from Earth to the Moon expressed in scientific notation?
a)
3.84 x 103 km
b)
384 x 103 km
c)
3.84 x 105 km
d)
3.84 X 106 km
66.
Which energy transformation occurs first in a col burning power plant?
a)
Chemical to thermal energy
b)
Thermal to mechanical energy
c)
Thermal energy to electrical energy
d)
Mechanical energy to electrical energy
67.
This picture shows a radiometer. It is designed to be placed in a sunny window. One side of each thin blade of the radiometer is painted black, and the other side is painted white. The Sun's rays strike the blades, and the device begins to spin. The device is powered by which kind of energy.
a)
Wind
b)
Solar
c)
Geothermal
Geothermal
Geothermal
d)
Electrical
68.
This data table shows the results of an investigation. What information should be used for the column headings marked X?
a)
Trial number
b)
Number of seeds
c)
predicted value for the results
d)
Average of the data in each column
69.
Which of the following is an example of potential energy?
a)
A glass jar sitting on a shelf
b)
A flag waving in the wind
c)
A ball rolling along a sidewalk
d)
A battery powering a radio
70.
What is the role of the Orca in this food chain?
a)
Producer
b)
First order consumer
c)
Second order consumer
d)
Third order consumer
71.
A car manufacturer reduces the mass of a car by 250 kg. If the new design is otherwise identical to the old design, how will the new car compare to the old car?
a)
It will have greater gravitational attraction to the road.
b)
It will require more fuel to operate.
c)
It will need less force to move.
d)
It will release more gas emissions.
72.
A student predicts that similar ice cubes will melt faster in a microwave than in a pot on the stove. How should this hypothesis be tested?
a)
Measure and compare the volume of the pot and the microwave.
b)
Determine the volume of liquid water made by each ice cube.
c)
Observe and record the time for each ice cube to completely change to a liquid.
d)
Identify and record the temperature of each ice cube before each trial
73.
Which of these best describes the particle motion taking place as CO gas is exposed to freezing temperatures?
a)
The particles decrease in speed.
b)
The particles move with more force.
c)
The motion of the particles become random.
d)
The motion of the particles is unchanged.
74.
A student suspects that there is a relationship between the amount of sunny weather in a given state and the amount of solar energy used by its inhabitants. In order to find out if this idea is correct, the student will need which information for each state?
a)
The efficiency of solar technology used in that state.
b)
The location and type of solar cells used in that state
c)
The percentage of days that have enough sunlight to power a solar water heater.
d)
The number of sunny days per year and the amount of solar power used per year
75.
During a fireworks show, a family sees the spray of sparkles from an exploding firework high in the sky and , a moment later, hears the pop. Which of these best explains why the pop and spray do not seem to occur at the same time?
a)
Light and sound travel through the air
b)
sound travels through a vacuum
c)
Sound travels slower than light
d)
Light and sound travel at the same speed.
76.
Which gas do animals need to carry out life functions?
a)
Oxygen
b)
Carbon Monoxide
c)
Helium
d)
Carbon Dioxide
77.
On a sunny morning, students standing in front of a store window noticed an image of themselves in the glass. Why did the students see their image in the glass?
a)
some of the light was reflected off the surface of the glass
b)
some of the light passed through the glass window
c)
some of the light was absorbed by the glass surface
d)
some of the light separated into different colors
78.
Which of the following is a nonrenewable energy source?
a)
solar collector
b)
wind turbine
c)
fossil fuel
d)
hydroelectric generator
79.
Energy from the Sun is distributed around the Earth by---
a)
subduction and rift zones
b)
radiation and convection
c)
tectonic plates
d)
solar flares
80.
Students conducted an investigation to determine if unknown liquids were acids or bases. What was the independent variable in this investigation?
a)
The sample of liquid
b)
indicator
c)
color change
d)
identification
Reset
