Science Grade 3 Revision for Midterm

Weather is what the air is like in a certain place at a certain time.

All weather takes place inside Earth’s atmosphere. The Earth’s atmosphere isa blanket of gas and dust that surrounds the Earth.

The water cycle normally brings light rain however sometimes it can bring severe weather.

A tornado is made up of strong rotating winds that form overland. A hurricane is a storm with strong winds that forms over water. A blizzard is a storm with cold temperatures and brings snow.

Labelling

Label the pictures

Drag labels to their correct position on the image

Blizzard

hurricane

tornado

​Climate refers to the pattern of weather experienced in a place over a long period of time. Climate is described by average temperature and precipitation.

Multiple Choice

What are clouds made of?

• A warm air

• B cold wind

• C sand and dust

• D water droplets

Multiple Choice

When a storm is coming, which

kind of clouds are you likely to

see?

• F. cirrus

• G .cumulus

• H .cumulo-cirrus

  .

• J .nimbus.

Labelling

Label the pictures. condensation

Drag labels to their correct position on the image

condensation

evaporation

precipitation

Page 7 of 10

4. Draw day and night on these Earths.

5. Write the correct planet for each description.

Mercury

Uranus

Earth

Mars

Jupiter

Saturn

Venus

Neptune

The closest planet to the sun.

About the same size as Earth.

Our home planet.

A small red planet.

The biggest planet.

A planet with rings.

A cold blue planet.

The furthest planet from the Sun.

Page 10 of 10

9. Write down the names for each of these moons.

10. True(T) or False(F)?

a. The Sun is the biggest star.

____________

b. Air pressure is measured using a barometer.

____________

c. Temperature tells us how hot or cold the air is.

____________

d. It takes one year for the Sun to travel once around the Earth.

____________

e. Outer planets are made up of rock.

____________

f. Rain and snow fall to the ground and are known as condensation

____________

THE END

Hotspot

Choose the correct answer

Multiple Choice

As the sun heats snow, snow changes from

• F . solid to gas

• G . gas to solid

• H. liquid to gas

• J . solid to liquid

Multiple Choice

Precipitation comes from the

_______in the sky.

• A. sun

• B. stars

  .

• C . Moon

• D .clouds

Multiple Choice

Kathleen leaves an ice cube on

the ground on a hot day. When

she returns, the ice has become

• F . rich soil

• G . liquid water

• H . water vapor

• J . carbon dioxide

Multiple Choice

What will eventually happen to

water vapor in a cloud?

• F. It will evaporate.

• G. It will remain in the cloud.

• H. It will become precipitation.

• J. It will make oxygen.

​The Earth is a sphere that rotates on it axis. An axis is an imaginary line that an

object spins on.

​Where a place is found on Earth affects its climate. Areas that receive direct sunlight will have warmer climates than areas that do not.

​The Earth rotates or spins on its axis. This rotation of the Earth causes day and night. The side of the Earth facing the Sun has daytime. The side of the Earth facing away from the Sun has nighttime. It takes 24 hours (1 day) for the Earth to complete one full rotation.

​The Earth revolves around the sun. To revolve means to move around another object. The path that the Earth follows around the sun is called its orbit.

The Sun is a medium sized star and the only star that is found in our solar system.

​The Earth has four seasons: winter, spring, summer, and fall. The seasons are caused by the Earth's revolution around the Sun and the way the Earth tilts on its axis.

 

It takes Earth about 365 days (1 year) to make one trip around the Sun. 

Multiple Choice

Leslie would like to go skiing

and snowboarding. What kind of

climate should she visit?

• A. hot, dry climate

• B cold, dry climate

• C mild, wet climate

• D cold, wet climate

Multiple Choice

Where does the weather occur?

• Inside the Earth's atmosphere

• Outside the Earth's atmosphere.

Match

Match the following

made up of strong rotating winds that form overland. 

 a storm with strong winds that forms over water. 

a storm with cold temperatures and brings snow

• made up of strong rotating winds that form overland. 

•  a storm with strong winds that forms over water. 

• a storm with cold temperatures and brings snow

Multiple Choice

Climate refers to the pattern of weather experienced in a place over________

• a long period of time.

• a short period of time.

Multiple Choice

Climate is described by ________

• average temperature and precipitation.

• The sum of temperature and precipitation.

• The product of temperature and precipitation.

• The quotient of temperature and precipitation.

Multiple Choice

Areas that receive direct sunlight will have ______ climates than areas that do not.

• warmer

• colder

Multiple Choice

The earth spins. It goes around its .....

• axis

• night

• day

Multiple Choice

The axis goes from the ..... at the top.

• Sun

• North Pole

• South Pole

Multiple Choice

When part of the earth faces the sun, it is ......

• day time

• night time

• no time

Multiple Choice

When part of the earth faces AWAY from the sun, it is....

• no time

• day time

• night time

Multiple Choice

The Earth's rotation causes ___________.

• Day and Night

• Seasons

• The Earth to be tilted

• Wind

Multiple Choice

How long does it take for the Earth to make one complete rotation?

• 365 days/1 year

• 1 week

• 24 hours/1 day

• 30 days/1 month

​The Moon is a satellite of Earth. The Moon revolves around Earth, causing the different phases of the Moon.

The Moon seems to change shape each night. These shapes are called phases.

​Solar system: A solar system is made up of a star and objects that move around it.

Planet: A planet is a large body of rock or gas with a nearly round shape that revolves around a star.

Telescope: A telescope is a tool used to make things that are far away look larger.

Earth has four inner planets. These are the four planets closest to the Earth that     are made from rock.

​The four planets furthest from the Earth are called outer planets. These planets are made up of gases.

Multiple Choice

How many moons does Earth have

• 2

• 1

• 0

• 4

Labelling

Labelling the moon's phases

Drag labels to their correct position on the image

waning crescent

full

new

third quarter

waxing gibbous

first quarter

waxing crescent

waning gibbous

Multiple Choice

What is the imaginary line that runs through the center of the Earth?

• axis

• revolution

• axle

• satellite 

Multiple Choice

Why does the Sun appear to rise and set each day?

• The moon rotates on its axis.

• The Earth rotates on its axis.

• The sun rotates on its axis.

• The Earth revolves on its axis.

Multiple Choice

Stars have different patterns on different nights.

• True 

• False

Multiple Choice

What is the Sun?

• A Star

• A Satellite

• A Planet

• A Galaxy

Multiple Choice

It takes the earth one year to make one what?

• revolution

• rotation

• turn

• flip 

Multiple Choice

How many planets are there in our solar system?

• Eight

• Nine

Multiple Choice

In which group does Earth belong?

• constellations

• planets

• stars

Multiple Choice

Mars is often called __________ due to rust in rocks.

• Red Planet

• Blue Planet

• Green Planet

• Orange Planet

Multiple Choice

Which planet is the hottest?

• Earth

• Neptune

• Mercury

• Venus

Multiple Choice

Which planet is the hottest?

• Earth

• Neptune

• Mercury

• Venus

Multiple Choice

Which planet is closest to the sun?

• Uranus
• Mercury
• Neptune
• Earth

Multiple Choice

What holds the planets in their orbits around the sun?

• gravity
• speed
• string
• air currents

Multiple Choice

Where is the Asteroid Belt located in the Solar System?

• near Neptune

• between Mercury and Venus

• between Mars and Jupiter

• around the Sun

Multiple Choice

A ball of ice and dust with a tail of gas and dust pointing away from the sun.

• Asteroid
• Comet
• Moon
• Meteor

Multiple Choice

The inner planets are called terrestrial planets because they are composed of

• water
• gas
• frozen surfaces
• rocks

Multiple Choice

Which planet is tipped on its side nearly 90 degrees?

• Jupiter
• Saturn
• Uranus
• Neptune

Multiple Choice

Which planet has a giant red spot?

• Jupiter
• Saturn
• Uranus
• Neptune

Multiple Choice

What model of the solar system states the sun is the center

• Geocentric Model
• Heliocentric model
• Biocentric modal
• Hydrocentric  model

Multiple Choice

What model of the solar system states the earth is the center

• Geocentric Model
• Heliocentric model
• Biocentric modal
• Hydrocentric  model

Multiple Choice

Which of these has the strongest gravitational field?

• sun

• earth

• saturn

• jupiter

Multiple Choice

What is a meteoroid that has hit Earth's surface?

• Meteor

• Asteroid

• Comet

• Meteorite

Multiple Choice

The middle layer of the sun's interior that contains very tightly packed gas is called the _____________.

• photosphere
• chromosphere
• radiation zone
• convection zone

Multiple Choice

The particles of the corona extends into space for millions of kilometers and spreads into streams of electrically charged particles called:

• coronal discharge
• solar flares
• coronal ejection
• solar winds

Multiple Choice

Areas of gas on the sun's surface that are cooler than gases around them are called:

• corona
• prominences
• sunspots
• solarspots

Multiple Choice

When prominences erupt into space releasing gas and energy we call this: 

• solar winds
• coronal outburst
• solar flares
• auroras