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ISASPs 8th Grade Review

Total questions: 126

Worksheet time: 7hrs 30mins

Name
Class
Date
1.

What organelle do plants have surrounding their cells that animals lack?

a)

Cell Wall

b)

Woody Stems

c)

Cell Membrane

d)

Sharp Thorns

2.

When many organ systems work together it can form...

a)

organ

b)

cells

c)

organism

d)

organ system

3.

Which organelle is only found in a plant cell?

a)

nucleus

b)

chloroplast

c)

mitochondria

d)

cell membrane

4.

Directs all cell activities through the DNA located there.

a)

Lysosomes

b)

Nucleus

c)

ribosomes

d)

Mitochondria

5.

You might think of me as the trash collector, but recycler is maybe more accurate. What am I?

a)

mitochondria

b)

vacuole

c)

lysosome

d)

ribosome

6.

What is found in both plant and animal cells but is much larger in plant cells?

a)

Nucleus

b)

Mitochondria

c)

Chloroplast

d)

Vacuole

7.

I am the outer most layer of an animal cell. What am I?

a)

cell wall

b)

cell membrane

c)

nucleus

d)

Cell Skin

8.

What is the gel-like substance inside of cells called?

a)

photoplasm

b)

cytoskeleton

c)

photosynthesis

d)

cytoplasm

9.

Which of the following is not part of the cell theory?

a)

cells must contain DNA

b)

all living things are made from cells

c)

cells can only come from other cells

d)

cells are the basic unit of life

10.

Which structures are found in every living cell?

a)

cell membrane and cytoplasm

b)

chloroplasts and mitochondria

c)

a cell wall and nucleus

d)

chloroplasts and cell wall

11.

Which organ system takes in oxygen and releases carbon dioxide?

a)

Chemical system

b)

Respiratory system

c)

Circulatory system

d)

Endocrine system

12.

The digestive system converts food into usable

a)

nutrients

b)

muscles

c)

energy

13.

Plants use the sunlight to make their own food. Therefore, plants are

a)

Producers, which produce energy for the rest of the ecosystem

b)

Consumers, consuming other living things in an ecosystem

c)

predators, top of the food chain

14.

Which organisms make energy available to all other organisms in a food chain?

a)

consumers

b)

decomposers

c)

producers

15.

Which of the following is an example of a predator?

a)

Wolf

b)

Owl

c)

Snail

d)

Plant

16.

Abiotic or Biotic: An insect

a)

Abiotic

b)

Biotic

17.

Abiotic or Biotic: Water

a)

Abiotic

b)

Biotic

18.

How many producers are in this food web?

a)

1

b)

2

c)

3

d)

4

19.

What Is natural selection?

a)

living things adapt to their environment to survive and produce more offspring

b)

Living things eat and hunt lesser creatures so they are not the one eaten

c)

The way natural works on its own

20.

Changes in physical structure, function, or behavior that allow an organism to survive

a)

Adaptation

b)

Mutation

c)

Camouflage

d)

Interdependence

21.

Coloring of markings that help or organism blend in with its surroundings

a)

Adaptation

b)

Trait

c)

Camouflage

d)

Mutation

22.

When plants undergo photosythesis they produce--

a)

carbon dioxide

b)

oxygen

c)

hydrogen

d)

nitrogen

23.

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 energy into nuclear energy

24.

Which of the organisms in a forest ecosystem is an example of a producer?

a)

grasshoppers

b)

plants

c)

owls

d)

frogs

25.

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

26.

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

27.

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

28.

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.

29.
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
30.

Which is an SI metric unit measurement that is used to record the heat transfer of a solution in a classroom investigation?

a)

Liter

b)

Newton

c)

Volt

d)

Degree Celsius

31.
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
32.

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

33.

Which organelle functions as a place to store extra water?

a)

Vacoule

b)

Chloroplasts

c)

Nucleus

d)

Cell membrane

34.

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

35.
Where are earthquakes most likely to occur?
a)
In the middle of plates
b)
In the oceans
c)
Along plate boundaries
d)
Anywhere on the Earth
36.
Why does the Earth orbit the Sun and not a planet in the solar system?
a)
The Sun is more massive than the planets so it's mass causes the gravitational pull.
b)
It just happened that way.
c)
The Earth pulls the Sun toward it  because it is so massive.
d)
The Earth is closer than the other planets so the distance causes the gravitational pull.
37.
Some objects like the Sun produce their own light.  Others don't.  Why can we see objects that don't produce light?
a)
They absorb the light.
b)
They reflect the light.
c)
They transmit the light.
d)
They bounce the light around until it strikes our eyes.
38.
Some resources are renewable and will not run out.  Some are finite and can't be renewed.  Which of these resources is non-renewable?
a)
solar
b)
hydroelectric
c)
wind
d)
oil
39.
Suppose you find fossils of dinosaurs on an island but no fossils of bird or mammal fossils found on the continent it broke off from  This information provides evidence of _________________.
a)
global warming
b)
seafloor spreading
c)
mountain building
d)
continental drift
40.
Which technology would be useful for studying moon phases
a)
Spectroscope
b)
Space Probe
c)
Telescope
d)
The international Space Station
41.
In order to be an index fossil the fossil must
a)
exist for a short period of time over a large area.
b)
exist for a long period of time over a small area.
c)
exist in spotty areas around the world.
d)
exist, die out,  and come back into existence.
42.

How do folded mountains form?

a)

They form when plate boundaries diverge.

b)

They form on the continent side of convergent boundaries.

c)

They form when plates collide or push against each other.

d)

They can form several different ways.

43.
            are observations from which a
conclusion can be drawn.
a)
Predictions
b)
Inventions
c)
Data
d)
Discoveries 
44.
Which statement about opinions is
true?
a)
They are personal beliefs.
b)
They are a valuable tool used by
scientists.
c)
They are supported by evidence.
d)
They can be used to help write
a hypothesis.
45.
You are testing to see if music helps
plants grow better. You divide the
plants into four groups.
 Plant Groups Group Music Type
 A jazz
 B classical
 C rock
 D none
What is group D called??
a)
the model group
b)
the control group
c)
the population group
d)
the experimental group
46.
Which states of matter have volume?
a)
solid and liquid
b)
solid, liquid, and gas
c)
liquid and gas
d)
solid and gas
47.
Which statement best describes atoms? 
a)
They are made of molecules
b)
Some do not have protons
c)
They have a nucleus
d)
They can be seen with a regular microscope
48.
Which is an example of erosion?
a)
water sitting in a well
b)
magma rising in a volcano
c)
wind blowing sand on a beach
d)
heat melting rock underground
49.
Which energy source is described as having the greatest impact on Earth's living environments?
a)
moving air
b)
moving water
c)
geothermal
d)
the Sun
50.

Which two processes could result in the formation of high mountains with well-rounded peaks?

a)

volcanic eruptions and global warming

b)

earthquakes and tidal activity

c)

movement of tectonic plates and erosion

d)

production of greenhouse gases and weathering

51.

The table shows the number of neutrons, protons, and electrons for two atoms. How are the two atoms alike?

a)

They have the same charge.

b)

They have the same mass number.

c)

They have the same atomic number

d)

They are atoms of the same element.

52.

The diagram shows the arrangement of electrons in a neon atom. How many protons are present in this atom's nucleus?

a)

10

b)

8

c)

2

d)

There is not enough information to answer this question.

53.

In the diagram, the arrows labeled III point to the atom's ______________.

a)

Protons

b)

Neutrons

c)

Nucleus

d)

Electrons

54.

How many of each atom are in the compound above?

a)

1 magnesium atom, 2 iron atoms, and 4 oxygen atoms

b)

3 magnesium atoms, 2 iron atoms, and 4 oxygen atoms

c)

6 magnesium atoms, 6 iron atoms, and 12 oxygen atoms

d)

3 magnesium atoms, 6 iron atoms, and 12 oxygen atoms

55.

Look at the pictures above. A shows the bag before the vinegar and baking soda are mixed together, and B shows it after they are mixed together. In which picture do the contents of the bag have the greater mass?

a)

The mass is greater in A—before they are mixed.

b)

The mass is greater in B—after they are mixed.

c)

The mass is the same in both.

d)

The mass depends on the temperature.

56.
The imaginary line running through the center of Earth.
a)
axis
b)
moon
c)
constellation
d)
orbit
57.
What causes Earth's seasons?
a)
the tilt of Earth's axis
b)
Earth's rotation
c)
the revolution of the Moon
d)
Earth's distance from the Sun
58.
The rotation of Earth on its axis causes the pattern of _____.
a)
night and day
b)
constellations
c)
Earth's seasons
d)
the phases of the moon
59.
It takes Earth _________ to make one complete rotation on its axis.
a)
24 hours
b)
365 days
c)
28 days
d)
24 days
60.
It takes Earth _____________ to make one revolution or orbit around the Sun.
a)
365 days
b)
365 hours
c)
28 days
d)
24 hours
61.
Which season is taking place in the Southern Hemisphere in Position 1?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
62.
What type of tides would this arrangement of earth-moon-sun create?
a)
neap tide
b)
spring tide
c)
new moon tide
d)
full moon tide
63.
In winter, the axis of the earth is pointed away or toward the sun?
a)
towards
b)
up
c)
down
d)
away
64.
Organisms who receive their energy by consuming other organisms.
a)
Chloroplast
b)
Heterotroph
c)
Autotroph
d)
Phototropism
65.
The part of a cell that contains the chromosomes (wound up DNA) in eukaryotic cells.
a)
Chloroplasts
b)
Cell Wall
c)
Nucleus
d)
Homeostasis
66.
The genetic code for all of your traits.
a)
Nucleus
b)
DNA
c)
Chloroplast
d)
Recessive gene
67.
The organelle inside a plant cell that converts sunlight into energy.
a)
Chloroplast
b)
Photosynthesis
c)
Parasite
d)
Cell Wall
68.
The part of a plant cell that is rigid & permeable.
a)
Chloroplast
b)
Turgor Pressure
c)
Cell Wall
d)
Phototropism 
69.
The trait that is always expressed.  It will hide or mask the other trait.
a)
Recessive
b)
Dominant
c)
Natural Selection
d)
Homeostasis
70.
Rebuilding an ecosystem after a catastrophic event has occurred and soil is present.
a)
Primary Succession
b)
Secondary Succession
c)
Natural Selection
d)
Adaptations
71.
Behavior patterns, or internal and external structures which allow an organism to survive and reproduce in their environment successfully.
a)
Adaptations
b)
Homeostasis
c)
Recessive traits
d)
Natural Selection
72.
The response of a plant due to the stimuli of light energy.
a)
Parasitic
b)
Chloroplast
c)
Photosynthesis
d)
Phototropism 
73.
The organism's ability to maintain equilibrium in their body.
a)
Homeostasis
b)
Heterotroph
c)
Prokaryotic
d)
Autotrophic
74.

What is the layer of mixed gases around the Earth called?

a)

Hemisphere

b)

Atmosphere

c)

Asthenosphere

d)

Lithosphere

75.

Which of these parts of the human body are NOT parts of the circulatory system?

a)

Heart

b)

Lungs

c)

Veins

d)

Arteries

76.

What happens to a species when its environment changes and it does not adapt?

a)

Migration Reflux

b)

Speciation

c)

Evolution

d)

Extinction

77.

In which part of a plant cell does photosynthesis take place?

a)

Cell Wall

b)

Vacuole

c)

Chloroplast

d)

Mitochondria

78.

Where does the Earth get most of its light?

a)

Moon

b)

Planets

c)

Sun

d)

Man-Made Electrical Sources

79.

How many bones does an average adult human have?

a)

188

b)

206

c)

226

d)

252

80.

How do herbivores acquire energy?

a)

Absorb sunlight

b)

Consume plants

c)

Consume animals

d)

Consume plants and animals

81.

Carnivores eat

a)

plants

b)

meat

c)

both plants and meat

82.

When species feeds on another, it is called

a)

predation

b)

ecosystem

c)

change

83.

Herbivores eat

a)

plants

b)

meat

c)

both plants and meat

84.

Omnivores eat

a)

plants

b)

meat

c)

both meat and plants

85.

An interaction between organisms or species for resources - food, shelter, etc.

a)

predation

b)

competition

c)

ecosystem

86.

Intraspecific Competition is

a)

competition between the

same species

b)

competition between different species

87.

Interspecific competition is

a)

competition between the same species

b)

competition between different species

88.

An association between two organisms in which one benefits and the other derives neither benefit nor harm.

a)

Biotic Factor

b)

Commensalism

89.

A non-living feature of an ecosystem (rock, water, sun, etc.) Biodiversity - the variety of life in the world or in a particular ecosystem or habitat is called

a)

Biotic Factor

b)

Abiotic Factor

90.

Symbiosis is

a)

a mutually beneficial relationship between different people or groups.

b)

competition between the same species.

91.

Which liquid is the least dense?

a)

Oil

b)

Water

c)

Syrup

d)

Plastic bottle

92.
Forces that have a net force of zero 
a)
Balanced force
b)
Unbalanced force
93.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
94.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
95.

the orbiting of an object around another object

a)

Solstice

b)

Revolution

c)

Rotation

d)

Equinox

96.
Name the moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
97.
What feature is formed at B?
a)
river
b)
rift valley
c)
sink hole
d)
mountain
98.

The luminosity of a star describes its ______________.

a)

brightness

b)

temperature

c)

age

d)

color

99.

A student is asked to categorize the following items as elements, compounds, or mixtures: copper wire, salt, aluminum foil, baking soda, a piece of granite, and sugar water. He lists ELEMENTS as copper wire, aluminum foil, and baking soda; COMPOUNDS as salt; MIXTURES as the piece of granite. Which is in the wrong category?

a)

copper wire

b)

baking soda

c)

sugar water

d)

salt

100.

Why is water classified as a compound?

a)

Because it is an element, which consists of only one type of atom.

b)

Because it is a substance, which can easily be separated.

c)

Because it is a substance composed of two or more kinds of atoms bonded together.

d)

Because it is an unevenly mixed solution, or a heterogeneous mixture.

101.

A student is designing an experiment for the science fair.  She needs to find a material that conducts an electric current, and her teacher has provided her with samples of the following elements.  Which of them should she choose?

a)

argon

b)

fluorine

c)

copper

d)

phosphorous

102.

The mass of the products in a chemical reaction is the same as the mass of the reactants in the reaction. Which law best describes this statement?

a)

The Law of Conservation of Angular Momentum

b)

The Law of Superposition

c)

The Law of Conservation of Matter

d)

The Law of Entropy

103.

A scientist recognizes a white powder as sugar due to its white crystals and its sweet taste.  However, the scientist notices that the elements that make up the sugar - carbon, hydrogen, and oxygen - look nothing like sugar, nor are they sweet.  What is the best explanation for this?

a)

Sugar is a compound, and compounds usually have a different appear

b)

Sugar is an element, so its properties are unique.

c)

Sugar is a heterogeneous mixture, so its appearance is unique.

d)

Substances in nature change randomly and it is impossible to predict those changes.

104.

The population density of marine life is denser along the shorelines of the ocean than farther out in the deep waters of the ocean.  Which statement provides the BEST reason for this situation?

a)

Ocean currents prevent many smaller marine organisms from living in deep water.

b)

The shallow waters have fewer predators.

c)

Coastal waters are less polluted than the deeper waters of the ocean.

d)

There are more nutrients in shallow waters.

105.

How can a scientist, using the periodic table, find an element with properties similar to another element?

a)

by comparing density

b)

by finding its periodic group

c)

by comparing malleability

d)

by comparing atomic weight

106.

Which is an example of a physical change?

a)

boiling

b)

burning

c)

rotting

d)

rusting

107.

Which project is MOST LIKELY to interest a scientist working at a biotechnology company?

a)

study and reconstruction of fossilized bones

b)

conservation of key species within ecosystems

c)

development of genetically modified corn plants

d)

prevention of sewage leaking into water supplies

108.

Which BEST describes a bio-indicator?

a)

a species that has a short life span

b)

a species that depends on specific conditions to survive

c)

a species that can adapt to a variety of conditions

d)

a species that has been introduced to an ecosystem

109.

This process removes carbon from the atmosphere?

a)

combustion

b)

cellular respiration

c)

photosynthesis

d)

decomposition

110.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
111.

Which nutrient can cycle through fossil fuels such as coal and oil?

a)

carbon

b)

oxygen

c)

nitrogen

d)

phosphorus

112.

This is the only nutrient that is NOT cycled through the atmosphere?

a)

carbon

b)

nitrogen

c)

phosphorous

d)

water

113.
This is released by the weathering of rocks.
a)
Carbon
b)
Oxygen
c)
Phosphorus
d)
Nitrogen
114.

Where is the most water found on earth (i.e. the largest reservoir)?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

glaciers

115.

Where is the most nitrogen found (i.e. the largest reservoir)?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

bacteria

116.

Human activity can increase carbon ( CO2 ) levels in the atmosphere through

a)

Photosynthesis

b)

Burning of fossil fuels

c)

Planting more trees

d)

Adding nitrogen to fertilizer.

117.

Too much phosphorus from fertilizers can runoff into freshwater and....

a)

be used to synthesize lipids.

b)

be absorbed directly by phosphate rock.

c)

be decomposed and returned to large bodies of water.

d)

lead to algal blooms, which causes eutrophication

118.

When water turns to vapor and rises into the atmosphere from the ocean, it is called

a)

condensation

b)

transpiration

c)

evaporation

d)

sublimation

119.

Our atmosphere is _____% nitrogen gas

a)

87

b)

75

c)

57

d)

78

120.

How does most of the carbon in an organism's body return to the environment after the organism dies?

a)

Decomposers break the body down into simpler compounds

b)

Heat from the sun causes the carbon in the body to evaporate

c)

Geological processes cause the body to turn into a fossil fuel

d)

Rain water dissolves the carbon in the body and carries it to the ocean.

121.

Animals and humans get the most of the nitrogen they need

a)

by consuming plants

b)

by breathing in atmospheric nitrogen.

c)

directly from bacteria in the soil.

d)

from the process of denitrification.

122.

What is this a picture of?

a)

Nitrogen cycle

b)

carbon cycle

c)

water cycle

d)

plant cycle

123.

When humans burn fossil fuels, most of the carbon quickly enters the ....

a)

Water

b)

Atmosphere

c)

Surrounding organisms

d)

Ground

124.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
125.

Check all correct answers: Which of these are apart of the water cycle?

a)

Precipitation

b)

Condensation

c)

Freezing

d)

Evaporation

126.

Which cycle was the most interesting to you?

a)

Nitrogen

b)

Water

c)

Carbon

d)

Phosphorus

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