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WorksheetsScience Grade 7 Q4 Revision
Total questions: 100
Worksheet time: 51mins
Which of the following layers of Earth's atmosphere has the narrowest temperature range?
troposphere
stratosphere
mesosphere
thermosphere
Which of the following is NOT a trace gas in Earth's atmosphere?
argon
carbon dioxide
ozone
nitrogen
Most of the hydrosphere is in what form?
ocean water
ice
freshwater
groundwater
The layer of the geosphere immediately below the crust is called what?
the hydrosphere
the mantle
the outer core
the inner core
Scientists classify rocks mainly according to which feature?
their color
their hardness
how they form
where they are found
Nitrogen and oxygen make up all but what percent of other gases Earth's atmosphere?
0.1%
1%
4%
10%
The troposphere and the mesosphere are part of which system?
the atmosphere
the biosphere
the geosphere
the hydrosphere
In a reservoir of groundwater, where is the zone of saturation?
immediately above the water table
immediately below the water table
both above and below the water table
in atmosphere
Naturally occurring inorganic solids are a part of which system?
the atmosphere
the biosphere
the geosphere
the hydrosphere
What is the inner core of the Earth made of?
molten rock
solid rock
molten metals
solid iron
What happens right before evaporation occurs?
water absorbs thermal energy
water releases thermal energy
water molecules begin moving more slowly
water changes from gas to liquid
Weather refers to the state of which system at a particular time?
the biosphere
the hydrosphere
the geosphere
the atmosphere
Which system is affected by the process of weathering?
the hydrosphere
the geosphere
the atmosphere
the biosphere
What happens to moist air as it rises on the windward side of a mountain range?
it cools down
it warms up
it loses oxygen
it slows down
Which is true of both the rock cycle and the water cycle?
both occur mostly in the atmosphere
both occur mostly in the geosphere
both have no beginning and no end
matter is created by both of them
In what way does water change when condensation occurs?
from gas to liquid
from liquid to solid
from liquid to gas
from solid to liquid
Which process is NOT illustrated in the image shown here?
evaporation
transpiration
compaction
precipitation
Which is an example of an interaction between the biosphere and
the atmosphere?
desalination
melting
respiration
sedimentation
Where do most of the interactions between the atmosphere, the
hydrosphere and the geosphere occur?
at the surface of the Earth
in the air
in the water
underground
Which is formed by compaction and cementation?
igneous rock
magma
metamorphic rock
sedimentary rock
Which type of energy, shown in the figure, is heat energy
contained in Earth's crust?
solar
nuclear
geothermal
fossil fuel
Which best describes a nonrenewable resource?
a natural resource that cannot be recycled
a natural resource that will not be depleted regardless of how much of
it is used
a natural resource that is replaced by natural processes faster than it is
used
a natural resource that is used up faster than it can be replaced by
natural processes
Which is true of uranium?
It is a manmade resource
It is a nonrenewable natural resource
It is a renewable natural resource
It is an inexhaustible natural resource
Which statement is true?
None of the Earth's water is freshwater
A small amount of the Earth's water is freshwater
Most of the Earth's water is freshwater
All of the Earth's water is freshwater
Which of these terms describes the type of energy shown in this
image?
nonrenewable
renewable
inexhaustible
nuclear
What produces the type of energy shown here?
high levels of moisture in the air
uneven heating of the atmosphere by
the sun
UV rays that penetrate the
atmosphere
sunlight directly hitting the structures
shown
Which best describes a natural resource?
something in the environment that can be transformed into something
else
something in the environment that humans have worked to conserve
something in the environment that is useful or necessary for the
survival of living things
something in the environment that humans have an impact on
Which is a nonrenewable resource?
water
uranium
soil
corn
Which resource is inexhaustible?
land
water
fossil fuel
solar energy
Oxygen is a renewable resource because it is continually
produced during the process of
decay
evaporation
photosynthesis
cellular respiration.
A key difference between renewable and nonrenewable resources
is
how useful they are to people.
where they are located on Earth.
the rate at which they are replenished
the processes by which they are produced
Which resource is NOT a fossil fuel?
oil
coal
potassium
natural gas
What process is used in nuclear power plants?
uranium steam
nuclear fission
nuclear fusion
cold fusion
Which phase of nuclear power generation actually produces the
electricity sent out to homes?
A
B
C
D
Which source of non-renewable energy is the least used in the
United States?
solar power
coal
hydroelectric power
nuclear power
What structure shown in this figure prevents natural gas from
rising to the surface?
impenetrable rock
water in spaces between rock
oil
natural gas
What is resource that is used up faster than it can be replenished
called?
renewable resource
solar energy
non-renewable resource
wind energy
Which type of energy production relies on hot water from the
earth to produce electricity?
Solar energy
Hydroelectric power
Biomass energy
Geothermal energy
Biodiesel fuel is an example of what renewable energy source?
Hydro-electric energy
Fuel cell energy
Biomass energy
Solar energy
What is a large group of wind turbines used to capture wind
energy called?
wind fields
wind farms
high wind areas
migration paths
What percent of the energy used in 2007 in the United States
came from renewable resources?
7%
15%
45%
62%
What factors caused the changes seen in the figure?
forest fires
coal mining
biodiesel production
changing land use from forest to
agriculture
Which category is the biggest use of land in the U.S.?
urban
forest
agriculture
grassland
What is the definition of runoff?
unabsorbed rainwater that flows over the Earth's surface
absorbed rainwater traveling underground
rainwater channeled through city canals or sewers
the percentage of water that evaporates after rain
From this chart what total percent of land use involves some type of food production?
3%
20%
23%
46%
What is another term for mineral deposits?
claim
metal
mines
ore
What is generated when uranium atoms are split in a nuclear reactor?
Nuclear fusion
Thermal energy
Geothermal energy
Nuclear fission
At what point is heat energy changed into mechanical energy in the generation of electricity from nuclear power?
A
B
C
D
…………………. is NOT a wise use of land resources.
Agriculture
Composting
Preservation
Deforestation
An ore is any mineral that
is used in agriculture.
forms in Earth’s crust.
is profitable when it is mined.
comes from preserved land resources.
Land is considered to be a resource because
it is nonrenewable.
it covers much of Earth’s surface
people use it to meet some of their needs
it can no longer be used after it becomes polluted
Energy that is made by moving air
Solar
Coal
Oil
Wind
Energy that can be replenished at the same rate as it is used
Alternative Energy
Renewable Energy
Nonrenewable Energy
Natural Gas
A flammable liquid made from organic matter buried under layers
of sediments for millions of years
Coal
Solar
Natural Gas
Oil
Energy that cannot be replaced in our lifetime
Nonrenewable Energy
Alternative Energy
Geothermal
Renewable Energy
Energy that is made from the power of moving water
Wind
Coal
Hydroelectric
Biomass
Fuels such as coal, oil, and natural gas that were formed over
millions of years from decayed plants and animals. This process
requires time, pressure, and heat.
Replenish
Fossil Fuels
Renewable Resources
Geothermal
Energy that is made from heat inside Earth
Solar
Coal
Geothermal
Fossil Fuels
Why are fossil fuels considered nonrenewable resources if they
are still forming beneath the surface today?
They are being formed too far beneath the surface.
They are being formed as a type of methane which we cannot use
The fossil fuels are being broken down by a natural process.
We are using the fossil fuels much faster than they can form.
Sunlight, water, and wind are examples of inexhaustible forms of
energy. What does inexhaustible mean?
We will run out at any minute
We will run out in 100 years.
We will run out in 20 years
We will never run out
What are renewable resources?
Resources that can be replaced in a short
amount of time
Resources that are used faster than they can
be replaced
they cannot be replaced
Name Two examples of Nonrenewable resources?
Tidal and Geothermal
Biomass and Wind Turbines
Coal and Oil
Name two examples of Renewable energy?
Coal and Nuclear
Oil and Gas
Solar Panels and Hydroelectric
What is a disadvantage of Fossil Fuels?
There are no disadvantages
It does not pollute the earth
Scientists guess that it will run out in the next 50 years
Define Solar Energy
Energy Created by burning plant and animal wastes
Energy from the sun
Heat energy from inside the Earth
Define Biomass energy:
Uses “farms”
Energy created by tides and dams
Energy created by burning plant and animal wastes
Define Geothermal energy
Created by burning plant and animal wastes
Energy from the sun
Heat energy from inside the Earth
Define wind energy
Energy from the sun
Uses “farms"
Created by tides and dams
Define Water energy:
Created by tides and dams
Energy from the sun
Uses “farms”
Which are ADVANTAGES of Solar Energy?
Does not create pollution after installing and lasts for many years.
Can use all the time and lasts for many years
No pollution after installing and able to use all the time
Earth provides solar energy continuously
What is the BEST definition for solar energy?
Energy captured in solar panels from kinetic energy
Light energy from the sun that is captured through solar panels.
Thermal energy from the sun that is captured through solar panels
Energy captured from the areas heated by the Earth
What are DISADVANTAGES of Solar Energy?
Creates pollution and destroys rivers
Cannot be easily installed onto house, and does not work all the time
Destroys oceans and cannot use all the time
Cannot use all the time, and creating solar panels causes pollution
What is the BEST definition for wind energy?
Energy captured in mills from thermal energy
Converting mechanical energy from wind currents to electrical through windmills
Thermal energy from the sun that is captured through windmills
Energy captured from the areas heated by the Earth
Which are ADVANTAGES of Wind Energy?
Does not create pollution after installing and lasts for many years
Can use all the time and lasts for many years
No pollution after installing and able to use all the time
Earth provides solar energy continuously
What are DISADVANTAGES of Wind Energy?
Creates pollution and destroys rivers
Cannot be easily installed onto house, and does not work all the time
Windmills can harm flying animals nearby and some find them not attractive to a landscape
Wind energy can create too much energy and create power surges
What is the BEST definition for Geothermal energy?
Energy captured in solar panels from kinetic energy
Light energy from the sun that is captured through solar panels.
Thermal energy from the sun that is captured through solar panels
Energy captured from the areas heated by the Earth like hot springs and geysers
Which are ADVANTAGES of Geothermal Energy?
Does not create pollution and can be used all of the time.
Can use most of the time and lasts for many years
Only needs the sun to be powered
The sun provides geothermal energy continuously
What are DISADVANTAGES of Geothermal Energy?
Creates pollution and destroys rivers
Cannot be easily installed onto house, and does not work all the time
Can only build in specific areas to use this type of energy
Wind energy can create too much energy and create power surges
What is the BEST definition for Hydroelectric energy?
Energy captured in solar panels from radiant energy
Thermal energy from the river that is captured through tidal panels.
Converting mechanical energy from moving water to electrical through building dams
Energy captured from the areas heated by the Earth like hot springs and volcanoes
Which are ADVANTAGES of Hydroelectric Energy?
Does not create pollution and can be used all of the time.
Can used sometimes and lasts for many years
Only needs the thermal energy from water to be powered
The sun provides hydroelectric energy continuously
What are DISADVANTAGES of Hydroelectric Energy?
Creates pollution and destroys rivers
Cannot be easily installed onto house, and does not work all the time
River/Water ecosystems can be destroyed to create dams and can cause droughts
Wind energy can create too much energy and create power surges
What is the BEST definition for Fossil Fuels?
Energy from recently living plant and animal materials
Fuels that come from very old life forms that decomposed over a long period of time.
Energy created from splitting Uranium atoms
Energy captured from the areas heated by the Earth like hot springs and volcanoes
Which are ADVANTAGES of Fossil Fuels?
Does not create pollution and can be used all of the time
Relatively cheap and make a lot of energy when burned
We will never run out of these resources
The Earth can make more of these resources within 100 years
What are DISADVANTAGES of Fossil Fuels?
Creates pollution when burning, destroys earth to get the resources, will run out
Most people are not currently using this type of energy resource
Very expensive to create
We are not able to develop better/more reliable energy than fossil fuels
What is the BEST definition for Biomass/Biofuel?
Energy from recently living plant and animal materials
Fuels that come from very old life forms that decomposed over a long period of time.
Energy created from splitting Uranium atoms
Energy captured from the areas heated by the Earth like hot springs and volcanoes
Which are ADVANTAGES of Biomass?
Does not create pollution and can be used all of the time
Relatively cheap and can be replaced within a lifetime
We will never run out of these resources
The Earth can make more of these resources within 100 years
What are DISADVANTAGES of Biomass?
Creates pollution when burning and can cause deforestation
Most people are not currently using this type of energy resource
Very expensive to create
We are not able to develop better/more reliable energy than fossil fuels
Global Warming is....
all the above
Heating of our oceans
A rise in average temperatures due to the breakdown of our atmosphere
none of the above
Over the past 50 years temperatures have
stayed the same
increased
decreased
all the above
What is soil used for?
wood for furniture
mining for minerals
growing crops
building houses
There are two types of minerals, metallic and non-metallic.
true
false
maybe
Which is NOT an example of land as a resource?
habitats
solar energy
agriculture
mineral resources
Which product is made from nonmetallic mineral resources?
stainless steel
iron nails
concrete
copper wires
__________ are deposits of minerals that are large enough to be mined for a profit
Run-offs
Ores
Metals
none of the above
List two disadvantages to deforestation.
Increase global climate and soil erosion
soil erosion and renewable resources
Loss of animal habitats and easy access
none of the above
List an advantage for land resources.
Warms the climate
They are nonrenewable
Easy to access
Uses less space
What are two metallic mineral resources?
bauxite and hematite
gypsum and halite
halite and flourite
bauxite and gypsum
This image is an example of what type of land degradation
Desertification
Deforestation
Urban Sprawl
Urbanization
