Worksheets7th Grade Mid-Term Review
Total questions: 40
Worksheet time: 21mins
The table indicates the percentages of some gases in the atmosphere of Mars.
Which gas present in the atmosphere of Mars is the primary gas found in the atmosphere of Earth?
carbon dioxide
Nitrogen
Argon
Methane
Which graph BEST illustrates the relationship of altitude and temperature in the lowest layer of the atmosphere of Earth?
Which graph BEST illustrates the change in density in the lowest layer of Earth’s atmosphere as altitude increases?
When cold air is at the tops of mountains, the air
will flow toward areas of lower pressure in valleys.
will flow toward areas of higher pressure in valleys.
is considered to be less dense than warmer air.
is considered to be free of oxygen atoms.
Water vapor sometimes condenses into stratus clouds that are in contact with the ground. What forms as a result of this process?
ozone
methane
fog
smoke
The process by which water vapor in the atmosphere cools and becomes a liquid is called
evaporation.
perspiration.
condensation.
transportation
Two students need to sort the following information into examples of climate change and examples of a change in the weather.
1. The average temperature in Europe has been rising over the past 25 years.
2. The temperature was warm on Monday, but rainy and cold for the rest of the week.
3. The amount of snowfall has been increasing over the past few years.
Which is the best example of weather change?
example 1
example 2
example 3
There is no good example of weather change listed.
When is the MOST energy transferred from the Sun to water in the water cycle?
during collection
during evaporation
during condensation
during precipitation
In which layer of Earth’s atmosphere does weather occur?
mesosphere
stratosphere
thermosphere
troposphere
Which is most likely indicated by the arrival of heavy rains, high winds, and thunderstorms?
a cold front
a warm front
a higher air pressure
a lower relative humidity
Which best describes the air conditions that cause thunderstorms?
cool, dry air
warm, dry air
cool, humid air
warm, humid air
Which best represents the cloud types in order from the lowest elevation to the highest elevation?
cumulus, stratus, cirrus
stratus, cirrus, cumulus
stratus, altocumulus, cirrus
altostratus, cumulus, stratus
Which best explains how warm air fronts compare to cold air fronts?
Warm air fronts cause more rainfall than cold air fronts.
Warm air fronts form higher clouds than cold air fronts.
Warm air fronts form more cloud cover than cold air fronts.
Warm air fronts cause higher temperatures than cold air fronts.
What will most likely occur if the barometric pressure begins dropping?
The skies will be fair.
Wind speed will increase.
Precipitation will increase.
The weather will remain the same.
Which causes air pressure at the equator to be less dense?
Warm air sinks which causes higher air pressure.
Warm air floats which causes higher air pressure.
Warm air expands which causes lower air pressure.
Warm air condenses which causes lower air pressure.
Over short distances, which best describes the direction the wind blows?
The wind blows toward areas of high density.
The wind blows toward areas of high pressure.
The wind blows toward areas of low pressure.
The wind blows toward areas of low temperature.
A model is shown.
The blue water from the jar rises to the top of the bowl. This model is MOST likely showing which event?
the way heat is transferred from a gas grill to food
the exchange of oxygen and carbon dioxide in lungs
the convection currents that form thunderstorms
the direction in which a hurricane moves
An air mass travels north over the Pacific Ocean, from the tropics, and then eastward across the United States. Which weather pattern can be expected?
cool and dry
warm and dry
cool and wet
warm and wet
Many countries depend on the energy from fossil fuels. Some scientists suggest using renewable sources of energy instead. Why would scientists MOST likely suggest using renewable sources of energy?
They are safer for the environment.
They are cheaper to develop.
They are easier to transport.
They produce more energy
Which is the best example of practicing good environmental stewardship?
driving a car
riding a motorcycle
carpooling with a friend
taking public transportation
Which is most likely to increase smog in a city?
a coal-burning factory
a field of solar panels
a field of wind turbines
a hydroelectric plant on a river
Automobile engines built today are designed to be gas efficient. Gas-efficient engines MOST likely affect a city by reducing
air pollution.
heat pollution.
noise pollution.
light pollution.
Nonrenewable energy sources, such as oil and natural gas, are formed from the remains of organisms buried beneath the surface of Earth.
What is one advantage of using natural gas instead of solar power to generate electricity?
Natural gas is free to extract and use.
Natural gas is safer than solar energy.
Natural gas plants can convert gas to electricity.
Natural gas plants can make power at night.
The Coriolis effect deflects wind direction. How does this process impact ocean surface currents?
The wind deflects the currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
The wind deflects the currents to the left in the Northern Hemisphere and to the right in the Southern Hemisphere.
The wind deflects the currents to the left in both hemispheres.
The wind deflects the currents to the right in both hemispheres.
Which best explains how the jet stream influences weather systems in the United States?
The jet stream is composed of incredibly fast winds that help to move weather systems from east to west across the United States.
The jet stream is composed of incredibly fast winds that help to move weather systems from west to east across the United States.
The jet stream is composed of incredibly slow winds that help to move weather systems from east to west across the United States.
The jet stream is composed of incredibly slow winds that help to move weather systems from west to east across the United States
When air is heated, it will MOST likely
expand and fall.
expand and rise.
condense and fall.
condense and rise.
Which of these MOST likely causes winds to blow on Earth?
Earth spins quickly, causing air to blow around.
The gravity of Earth and the Moon push and pull the air.
Warm air rises and cool air falls toward Earth’s surface.
Ocean waves push air onto the shore and across Earth’s surface.
Uneven heating of Earth’s surface by the Sun causes which of these?
wind patterns
cloud formation
volcanic activity
nutrient cycling
The graph shows the barometric pressure in Henderson, NV, on a day that had heavy rainstorms.
At what time did the rain MOST likely begin to stop?
between 8 A.M. and 9 A.M.
between 10 A.M. and noon
between 3 P.M. and 6 P.M.
between 6 P.M. and 7 P.M.
What is the difference between a unicellular and multi-cellular organism?
a unicellular organism is made up of one cell and a multi-cellular organism is made up of no cells
A. a unicellular organism is made up of one cell and a multi-cellular organism is made up of no cells
a unicellular organism is made up of one cell and a multi-cellular organism is made up of many cells
a unicellular organism is made up of many cells and a multi-cellular organism is made up of one cell
a unicellular organism and a multi-cellular organism are the same thing
Which one of these is NOT a characteristic of an animal cell?
obtains energy by consuming other organisms
is multicellular with cells that have cell walls
takes in oxygen and releases carbon dioxide
is able to grow new cells to replace damaged cells
In which way are a euglena and a volvox different?
A euglena is an individual cell, while a volvox is a colony of cells.
A euglena uses cilia to move, while a volvox uses flagella to move.
A euglena can make its own food, while a volvox must capture its food.
A euglena only reproduces sexually, while a volvox only reproduces asexually
Which two organisms contain chloroplasts and eyespots?
amoeba and paramecium
paramecium and volvox
volvox and euglena
euglena and amoeba
Which single-celled organism lives in colonies and uses chloroplasts to make its own food?
Amoeba
Euglena
Paramecium
Volvox
The diagrams identify major parts of two different human systems.
Which statement BEST describes how the two systems are similar?
Both systems provide structure to the body.
Both systems contain specialized cells and tissues.
Both systems assume the functions of other failing body parts.
Both systems establish homeostasis and communication.
An athlete is running a race. The athlete’s body needs energy. Which type of organelle in the athlete’s cells supplies the energy for cellular function?
Golgi apparatus
mitochondrion
ribosome
nucleus
Which function makes a plant cell different from an animal cell?
ability to use energy
ability to absorb nutrients
ability to divide into two cells
ability to convert sunlight into energy
A student studied an animal cell under a microscope. The student made a drawing of the cell and labeled some of its parts.
Which label should the student write in place of the question mark?
Nucleolus
Ribosome
Cell wall
Cell membrane
Which series correctly represents the levels of organization in an organism?
cells→ organs→ organ →system tissue
cells →tissue→ organs→ organ system
tissue →cells →organ system→ organs
tissue→ organ system →cells→ organs
Which statement explains what will MOST likely happen to the hydrosphere in an area where air temperatures increase?
Earthquake intensity will decrease.
Mountain formation will decrease.
Rock weathering will increase.
Evaporation will increase.
