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TEST: 7th Grade Science 1st Term Review

Total questions: 100

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
_______ affects weather because the further north or south you go from the Equator, the less solar energy (heat).
a)
altitude
b)
latitude
c)
sunlight
d)
atmosphere
2.
Large body of air with the same temperature, pressure, and moisture characteristics is called?
a)
warm front
b)
cold front
c)
air mass
d)
jet stream
3.
______ is the average pattern for weather over a long period of time.
a)
climate
b)
weather
c)
forecast
d)
sunlight
4.
The boundary between two air masses that meet is called?
a)
front
b)
back
c)
side
d)
air mass
5.
Earth is unevenly heated due to its?
a)
oceans and moon
b)
tilt and shape
c)
gravity and clouds
d)
climate and weather
6.
What are the 3 major climate zones in order from equator to the poles?
a)
polar, temperate, tropical
b)
tropical, temperate, polar
c)
temperate, polar, tropical
7.

Which gas is the most common in our air?

a)

Nitrogen

b)

Hydrogen

c)

Helium

d)

Oxygen

8.
What causes winds?
a)
differences in precipitation
b)
differences in humidity
c)
differences in air pressure
9.

Does high air pressure systems SINK or RISE in the atmosphere?

a)

Sink

b)

Rise

10.

Do LOW air pressure systems SINK or RISE in the atmosphere?

a)

Sink

b)

Rise

11.
High pressure will usually bring what kind of weather?
a)
clear and dry
b)
cloudy and wet
12.

Low pressure will usually bring what kind of weather?

a)

clear and dry

b)

cloudy and wet

13.

Which type of pressure system is pictured?

a)

high

b)

low

c)

warm

d)

cold

14.

Which type of pressure system is pictured?

a)

high

b)

low

c)

warm

d)

cold

15.
In what direction do winds always blow?
a)
From areas of high pressure to areas of low pressure
b)
From areas of low pressure to areas of high pressure
16.

Wind in the Northern hemisphere deflects to the ______________ because of the Coriolis Effect.

a)

right

b)

left

c)

east

d)

west

17.
Convection takes place because
a)
warm air is more dense than humid air
b)
warm and cold air have the same density
c)
cold air is less dense than warm air
d)
cold air is more dense than warm air
18.

The Coriolis Effect is caused by

a)

Earth revolving around the sun

b)

Earth rotating on its axis

c)

Differences in surface temperature

d)

Differences is air pressure

19.
What creates the air pressure difference between the equator and the poles?
a)
The length of the seasons
b)
The shape of the earth 
c)
the duration of the solar year
d)
The amount of direct sunlight each area receives 
20.
When heat rises cools then sinks 
a)
high pressure 
b)
convection current 
c)
low pressure 
d)
stratospheric pressure  
21.

Flow of air from land to a body of water is called:

a)

doldrum

b)

chinook

c)

sea breeze

d)

land breeze

22.
What kind of air pressure does WARM air have?
a)
High pressure
b)
Low pressure
23.
During the day, warm air rises over the land then cools and falls over water in a continuous cycle.
a)
Land breeze
b)
Sea breeze
24.

These winds occur at a latitude between 0 and 30 degrees.

a)

Trade winds

b)

Westerlies

c)

Easterlies

25.

These winds occur at a latitude between 30 and 60 degrees.

a)

Trade winds

b)

Westerlies

c)

Easterlies

26.

These winds occur at a latitude between 60 and 90 degrees.

a)

Trade winds

b)

Westerlies

c)

Easterlies

27.

Surface currents are mainly formed by and driven by the ______.

a)
The Coriolis Effect
b)
Cold and Warm Water
c)
Convection
d)

Winds

28.

Ocean water is more dense than fresh water at the same temperature due to differences in _________.

a)
Wind patterns
b)
 Lifeforms
c)
Currents
d)
Salinity
29.

Deep Ocean currents are primarily caused by ________.

a)

temperature and salinity

b)

wind

c)

gravity

d)

precipitation

30.

The warm, strong current off the coast of Florida is the ____________.

a)

Gulf Stream

Current

b)
California Current
c)
North Equatorial Current
d)
Brazil Current
31.

When surface currents meet continents they ___?

a)

Stop moving

b)

Are deflected (change paths)

c)

Continue in the direction they were going

32.

Salt water is ____________ fresh water.

a)

more dense than

b)

less dense than

c)

the same density as

33.
Analyze the map.
Why is it warmer in Charleston than it is in San Diego even though they are the same distance from the Equator?
a)
San Diego is affected by the Gulf Stream
b)
Charleston is affected by the California current
c)
Charleston is affected by the Gulf Stream
34.
When I cold front is approaching, what happens?
a)
warm air is pushing under cold air causing humid weather and lower temperatures
b)
warm air is pushing under cold air causing humid weather and higher temperatures
c)
warm air rises, cools, and causes rain and thunderstorms
d)
cold air is pushed over warm air causing rain and thunderstorms
35.
If an air mass is sinking, it must be
a)
cold and less dense
b)
cold and more dense
c)
warm and more dense
d)
warm and less dense
36.
This is the symbol for which type of front?
a)
cold front
b)
warm front
c)
stationary front
d)
occluded front
37.

Name that front.

a)

Cold Front

b)

Warm Front

c)

Stationary Front

d)

Occluded Front

38.

Name that front.

a)

Cold Front

b)

Warm Front

c)

Stationary Front

d)

Occluded Front

39.

What type of weather will you see along a cold front?

a)

Thunderstorms

b)

Sunny skies

c)

Gentle rain

d)

No weather

40.

What kind of weather happens along a Warm Front?

a)

Thunderstroms

b)

Days of Rain!

c)

Nothing

d)

Wind

41.

How does elevation affect the climate of an area?

a)

As elevation increases, air temperature increases.

b)

As elevation increases, air temperature decreases.

c)

As elevation increases, precipitation increases.

d)

As elevation increases, precipitation decreases.

42.

How do ocean currents affect the climate of an area? Choose all that apply.

a)

Cold ocean currents have a cooling effect on nearby land.

b)

Cold ocean currents have a warming effect on nearby land.

c)

Warm ocean currents make nearby land warmer.

d)

Warm ocean currents make nearby land colder.

43.

Distance from a large body of water does not affect the climate of an area.

a)

True

b)

False

44.

Prevailing winds in the United States go from ____ to ______.

a)

east to west

b)

north to south

c)

west to east

d)

south to north

45.
The Earth is rotating on its axis, creating _____
a)
the 12 months
b)
the years
c)
the seasons
d)
day and night
46.
The movement of the Earth around the Sun is called its _____
a)
revolution
b)
rotation
c)
precession
d)
gyration
47.
Earth has seasons because 
a)
Earth rotates on it's axis
b)
The distance between Earth and the sun changes
c)
The temperature of the sun changes
d)
Earth's axis is tilted as it moves around the sun
48.
Earth is tilted as it revolves around the sun which gives us seasons. Which season would it be in North America at letter D?
a)
Summer
b)
Spring
c)
Winter
d)
Fall
49.
When the Northern Hemisphere of Earth is Leaning away from the Sun, What season is the Southern Hemisphere experiencing?
a)
Summer
b)
Winter
c)
Spring
d)
Fall
50.

Water vapor leaves a plant in the biosphere and goes into the atmosphere through

a)

transpiration

b)

respiration

c)

precipitation

d)

evaporation

51.

____ happens when liquid turns into a gas on Earth's surface

a)

evaporation

b)

condensation

c)

respiration

d)

transpiration

52.

As a part of the water cycle, water from Earth's surface enters the clouds and finally falls back to the ground in the form of rain. What is the correct sequence of processes water undergoes?

a)

Evaporation, Condensation, Precipitation

b)

Precipitation, Condensation, Evaporation

c)

Condensation, Evaporation, Precipitation

d)

Evaporation, Precipitation, Condensation

53.

Condensation occurs when water vapor_____________.

a)

heats up and becomes liquid water

b)

cools off and becomes liquid water

c)

freezes and becomes ice

d)

rains on the land

54.

What type of organism “fixes” the nitrogen for use by plants?

a)

Humans

b)

Plants

c)

Bacteria

d)

Aliens

55.

Plants absorb ________________________ and release oxygen

a)

Carbon dioxide

b)

Carbon monoxide

c)

Vitamin X

d)

Oxygen

56.
Which of these does not add CO2 to the atmosphere
a)
cooking with gas
b)
planting trees
c)
burning wood
d)
riding in a bus
57.
Combustion is another word for
a)
burning
b)
melting
c)
exploding
d)
incinerating 
58.
What process keeps Earth's temperature suitable for life
a)
Convention currents
b)
Greenhouse Effect
c)
Albedo Effect
d)
Water Cycle
59.
Why does too much carbon dioxide in the atmosphere cause climate change?
a)
It cools our planet
b)
Blocks out UV rays
c)
Traps heat and warms planet
d)
Lets light escape
60.
Which of the following adds oxygen to the atmosphere
a)
forest fires
b)
photosynthesis
c)
weathering of rocks
d)
life processes of animals
61.
Deforestation contributes to the greenhouse gasses by
a)
loss of trees that would otherwise remove carbon dioxide from the air
b)
as trees are cut, they release carbon dioxide
c)
increasing the amount of oxygen in the air
62.
Carbon is stored in
a)
trees and other living things
b)
oceans
c)
underground in soil and fossil fuels
d)
all are correct
63.

Ammonification...

a)

animals eat the plants and other animals that contain nitrogen and release it through their waste

b)

Bacteria in the soil and lightning in the atmosphere “fix” the nitrogen

c)

Once in the ground, bacteria in the soil also nitrify the nitrogen

d)

plants absorb nitrogen through their roots and return it back to the atmosphere

64.

Organisms that need nitrogen to survive.

a)

only plants

b)

only animals

c)

only bacteria

d)

all living things

65.

How do animals get the nitrogen they need?

a)

From the air they breathe

b)

From the water they drink

c)

From the food they eat

d)

From the sun

66.

According to this diagram, plants use nitrogen to make _________________________

a)

bacteria

b)

animals

c)

proteins

d)

decomposers

67.

A correct path that nitrogen could take would be

a)

air -> animals -> plants -> bacteria

b)

animals -> air -> bacteria -> plants

c)

bacteria -> air -> plants -> animals

d)

air -> bacteria -> plants -> animals

68.

The process that allows organisms to use nitrogen

a)

assimilation

b)

denitrification

c)

fixation

d)

ammonification

69.
What is being produced during photosynthesis?
a)
sugar and oxygen
b)
sugar and carbon dioxide
c)
glucose
d)
gases
70.
What gas is TAKEN IN during photosynthesis?
a)
argon
b)
nitrogen
c)
oxygen
d)
carbon dioxide
71.
What gas is released from the plant during RESPIRATION?
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
argon
72.

When did climate change (CO2 in the atmosphere) increase significantly?

a)

1800s Industrial Revolution

b)

1600s Industrial Revolution

c)

1800 Crusades

d)

1600 Crusades

73.

What are examples of renewable energy sources?

a)

Solar

b)

Wind

c)

Coal

d)

Gas

74.

What are examples of non-renewable energy sources?

a)

Geothermal

b)

Coal

c)

Oil

d)

Hydro

75.

What types of data have scientists collected related to climate change?

a)

Measuring Earth’s current temperature and CO2

b)

Examining ice/glacier melting

c)

Taking educated guesses

d)

The ice caps are getting bigger/growing

76.

What are some potential consequences of climate change?

a)

The sea levels will rise putting seaside towns and cities at risk of drowning

b)

The sea levels will drop putting seaside towns and cities at risk of drowning

c)

More extreme weather

d)

Animals will be able to adapt to the changes

77.

What are some possible solutions to climate change

a)

Use less energy

b)

Choose renewable energy sources

c)

Plant trees and other plants

d)

Recycle and reuse items

78.

What is the definition of renewable energy sources?

a)

sources of energy that will never go away or be used up

b)

Sources of energy that can go away and be used up

c)

Wind, Solar, Hydro, Geothermal

d)

Coal, Oil, Gas

79.

What is the definition of non-renewable energy sources?

a)

sources of energy that will never go away or be used up

b)

Sources of energy that can go away and be used up

c)

Wind, Solar, Hydro, Geothermal

d)

Coal, Oil, Gas

80.

The graph shows changes in carbon dioxide

(CO2) concentrations and surface temperatures

on Earth from the years 1880 to 2000.

Why do carbon dioxide concentrations and

surface temperatures show the relationship seen

in the graph?

a)

because lower carbon dioxide levels mean more

heat is retained in Earth's atmosphere

b)

because higher carbon dioxide levels mean

more heat is retained in Earth's atmosphere

c)

because lower carbon dioxide levels mean less

heat is retained in Earth's atmosphere

d)

because higher carbon dioxide levels mean less

heat is retained in Earth's atmosphere

81.

The formation of a solid when two liquids combine is called?

a)

Solidification

b)

Freezing

c)

Precipitate

d)

Solubility

82.

The difference between a Physical change and a Chemical change is…

a)

Physical change is only a change to the outside appearance.

b)

Chemical change is when matter is changed into something new.

c)

Atoms are rearranged in chemical changes & not in physical.

d)

All are correct.

83.

Which type of change is most often easily reversed?

a)

Chemical

b)

Physical

c)

Both a physical and chemical change.

d)

Neither a physical or chemical change.

84.

Identify what type of change happening in the picture below...

a)

Chemical Change

b)

Physical Change

c)

Endothermic Reaction

d)

Exothermic Reaction

85.

Identify what type of change happening in the picture below...

a)

Chemical Change

b)

Physical Change

c)

Endothermic Reaction

d)

Exothermic Reaction

86.

Identify what type of change happening in the picture below...

a)

Chemical Reaction

b)

Physical Change

c)

Change in State

d)

Change in appearance only

87.

Which of the following is an example of a physical change?

a)

A glass falling and shattering on the floor.

b)

Baking a birthday cake.

c)

Burning a piece of paper.

d)

Baking soda and vinegar mixing together.

88.

Which is not a clue that could indicate a chemical change has occurred?

a)

Change in color

b)

Change in shape

c)

Release of energy

d)

Formation of an odor

89.

Choose which one is a physical property

a)

Flammability

b)

Solubility

c)

Water Reaction

d)

Magic

90.

Choose the 3 that are physical properties of aluminum foil

a)

Malleable

b)

Luster

c)

Oxidation

d)

High melting point

91.

Which of these statements best describes a chemical property of a substance?

a)

It reacts with an acid to form water

b)

The object has a blue color

c)

The substance has a powdery texture

d)

It has a density of 2.11 g/cm3

92.

Choose whether the following is a physical or chemical property: Malleability

a)

Physical

b)

Chemical

93.

Choose whether the following is a physical or chemical property: Non-flammable

a)

Physical

b)

Chemical

94.

Which option best describes the difference between a physical and chemical property?

a)

There is no difference between a physical and chemical properties?

b)

Physical properties are usually room temperature but chemical properties are very hot

c)

Observing a chemical property results in the creation of a new substance while observing a physical change does not change the substance

d)

The difference between physical and chemical properties are the states of matter

95.

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

a)

lemon juice, milk, baking soda, bleach

b)

bleach, baking soda, milk, lemon juice

c)

milk, lemon juice, baking soda, bleach

d)

baking soda, bleach, lemon juice, milk

96.

Which of these is a property of acidic solutions?

a)

they taste sour

b)

they feel slippery

c)

they are in many cleaning products

d)

they taste bitter

97.

The table shows the pH of several solutions. Which solution is the most acidic?

a)

vinegar

b)

milk

c)

water

d)

bleach

98.

Bases are generally ............................ to touch

a)

Hot

b)

Cold

c)

Soapy

d)

Rough

99.

The Substance which turns Blue litmus red is ......................

a)

Basic

b)

Acidic

c)

Neutral

d)

All of these

100.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid

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