Earth and Space
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
The Solar System and Planets
SubtopicThe Solar System and Planets under Earth and Space for Grade 3 IB.
Preview questions (no answers)
- 1.
What is the main reason outer space looks black even though it is full of stars?
A.The stars are turned off
B.Space is mostly empty and very vast
C.The Sun is too bright
D.The Moon blocks the light
- 2.
Which planet is located between Earth and Jupiter?
A.Mercury
B.Venus
C.Mars
D.Saturn
- 3.
Why does the Sun look so much larger and brighter than other stars we see at night?
A.It is the biggest star in the universe
B.It is much closer to Earth than other stars
C.It is made of different gas
D.It only shines during the day
- 4.
Which of these is the correct order of the first three planets starting from the Sun?
A.Earth, Venus, Mercury
B.Mercury, Earth, Venus
C.Mercury, Venus, Earth
D.Venus, Mercury, Earth
- 5.
Which of these instruments would be most helpful for a student wanting to see the rings of Saturn from their backyard?
A.A Microscope
B.A Magnifying Glass
C.A Telescope
D.A Stethoscope
- 6.
How many moons does the planet Earth have?
A.Zero
B.One
C.Two
D.Hundreds
- 7.
What is the name of the force that keeps the Moon orbiting around the Earth?
A.Magnetism
B.Friction
C.Gravity
D.Electricity
- 8.
Our solar system is a tiny part of a much larger collection of stars, gas, and dust. What is the name of our galaxy?
A.The Andromeda Galaxy
B.The Orion Nebula
C.The Milky Way
D.The Alpha Centauri System
- 9.
Light travels incredibly fast, but space is very large. About how long does it take for light from the Sun to reach the Earth?
A.About 8 seconds
B.About 8 minutes
C.About 8 hours
D.About 8 days
- 10.
Earth's atmosphere is unique because it contains high levels of two specific gases that support life. What are they?
A.Hydrogen and Helium
B.Carbon Dioxide and Methane
C.Nitrogen and Oxygen
D.Argon and Carbon Monoxide
Download the worksheet for Earth and Space - The Solar System and Planets to practice offline. It includes additional chapter-level practice questions.
Earth's Rotation and Day/Night
SubtopicEarth's Rotation and Day/Night under Earth and Space for Grade 3 IB.
Preview questions (no answers)
- 1.
Which activity is most common for humans when their side of the Earth is turned away from the Sun?
A.Eating breakfast
B.Going to school
C.Sleeping
D.Playing at the park in the sun
- 2.
What do we call the period of time that includes one full sequence of daylight and one full sequence of darkness?
A.An hour
B.A month
C.A full day
D.A year
- 3.
Which of these is the main source of light that makes our sky look blue and bright during the day?
A.The Moon
B.The Stars
C.The Sun
D.City lights
- 4.
What is the term for the imaginary line where the sky and the Earth's surface seem to meet?
A.The Equator
B.The Horizon
C.The Axis
D.The Path
- 5.
Which of the following is the best description of the Earth's movement that causes day and night?
A.A slow drift through space
B.A steady spin like a top
C.A giant circle around the Moon
D.A back-and-forth tilt
- 6.
If you plant a sunflower, why might it appear to 'follow' the Sun during the day?
A.Because the Sun is orbiting the flower
B.Because the flower is rotating on its own axis
C.Because the Earth's rotation changes where the Sun appears
D.Because the wind blows it toward the light
- 7.
As the Earth rotates, a person standing on the surface moves from the dark side into the light side. What is this person observing?
A.Sunset
B.Midnight
C.Noon
D.Sunrise
- 8.
Which is the best evidence that the Earth is rotating and not the Sun moving around the Earth?
A.The Sun is much larger and more massive than the Earth.
B.We can see the Sun move across the sky every day.
C.It gets colder at night when the Sun is gone.
D.Birds fly South for the winter.
- 9.
How does the speed of Earth's rotation at the poles compare to the speed at the Equator?
A.It is much faster at the poles.
B.It is much slower at the poles.
C.It is exactly the same at both locations.
D.The poles do not rotate, only the Equator does.
- 10.
As Earth rotates, a specific city moves from the 'dark' side into the 'light' side. What is the name for this event?
A.Sunset
B.Noon
C.Sunrise
D.Midnight
Download the worksheet for Earth and Space - Earth's Rotation and Day/Night to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
What is the scientific name for the study of the Moon and Space?
A.Biology
B.Astronomy
C.Geology
D.Chemistry
- 2.
Which phase of the Moon occurs when the Moon is positioned between the Earth and the Sun?
A.Full Moon
B.New Moon
C.First Quarter
D.Third Quarter
- 3.
Why does the Moon look so bright at night?
A.It is a ball of fire
B.It reflects light from the Sun
C.It has giant lightbulbs
D.It reflects light from the Earth
- 4.
Which of these does the Moon NOT have?
A.Rocks
B.Dust
C.Liquid water oceans
D.Craters
- 5.
Look at the diagram showing the alignment of the Sun, Earth, and Moon. When the Earth is positioned directly between the Sun and the Moon, which phase of the Moon do we see from Earth?
A.New Moon
B.Full Moon
C.First Quarter Moon
D.Third Quarter Moon
- 6.
Which event marks the 'restart' of the moon phase cycle?
A.The Full Moon
B.The New Moon
C.The First Quarter
D.The Lunar Eclipse
- 7.
How many major phases are typically recognized in the primary lunar cycle?
A.4
B.12
C.8
D.30
- 8.
What is the correct sequence for the Moon's phases starting from a New Moon?
A.New, Crescent, Quarter, Gibbous, Full
B.New, Gibbous, Quarter, Crescent, Full
C.New, Full, Quarter, Crescent, Gibbous
D.New, Quarter, Full, Crescent, Gibbous
- 9.
Which of these correctly describes the path of the Moon?
A.It orbits the Sun directly
B.It orbits the Earth while the Earth orbits the Sun
C.It stays in one place while Earth orbits it
D.It travels in a straight line through space
- 10.
If you are looking at a Third Quarter moon, how much of the Moon's entire sphere is currently in the dark?
A.None
B.25%
C.50%
D.75%
Download the worksheet for Earth and Space - Moon Phases to practice offline. It includes additional chapter-level practice questions.
The Sun as an Energy Source
SubtopicThe Sun as an Energy Source under Earth and Space for Grade 3 IB.
Preview questions (no answers)
- 1.
Why is it a safety rule to never look directly at the Sun, even with sunglasses?
A.Because the Sun is too far away to see clearly
B.Because its light is powerful enough to damage your eyes
C.Because it will make you feel very cold
D.Because the Sun might move faster if you watch it
- 2.
How does the Sun help a farmer who is growing apple trees?
A.It provides the energy needed for the apples to ripen
B.It keeps the apples hidden from the birds
C.It makes the apples turn into ice cream
D.It cools the trees down so they can sleep
- 3.
Some houses have black panels on their roofs to collect energy from the Sun. What is this energy usually used for?
A.To make the roof look pretty
B.To heat water or make electricity
C.To keep the house from floating away
D.To attract birds to the roof
- 4.
The Sun's energy is used to power the water cycle and create weather. Where does this energy come from?
A.From the center of the Earth
B.From the Moon's reflection
C.From the Sun's heat and light
D.From the movement of the oceans
- 5.
A solar-powered calculator can work under a bright desk lamp. Why does it work without being in the Sun?
A.The calculator makes its own light
B.The lamp provides light energy similar to the Sun that the solar cell can use
C.The calculator is actually powered by the person's touch
D.The lamp sends a signal to the Sun to send more energy
- 6.
The Sun heats the ocean water more at the Equator than at the North Pole. What does this difference in heat energy cause?
A.It causes the ocean water to stop moving
B.It causes ocean currents as warm water moves toward colder areas
C.It causes the ocean to turn into a giant cloud
D.It causes the salt in the ocean to disappear
- 7.
When a piece of wood burns in a campfire, it releases heat and light. Where was this energy stored before the wood was burned?
A.It was hidden in the smoke
B.It was energy from the Sun stored by the tree as it grew
C.It was energy from the matches used to start the fire
D.It was energy the tree took from the birds living in it
- 8.
If you were designing a house to stay warm in the winter using the Sun's energy, which feature would be most helpful?
A.Painting the roof white to reflect the Sun.
B.Large windows facing the direction of the midday Sun to let in radiant heat.
C.Removing all the windows so the Sun's energy cannot escape.
D.Building the house completely underground where the Sun cannot reach.
- 9.
Which statement best describes how the Sun's energy is distributed on Earth?
A.Every part of the Earth receives the exact same amount of energy every day.
B.The Earth's spherical shape and tilt cause different areas to receive different amounts of energy.
C.The Sun only sends energy to the side of the Earth that has more people.
D.The oceans receive all the energy, and the land receives none.
- 10.
Which of these is a way the Sun's energy helps keep the Earth's atmosphere in place?
A.The Sun's energy creates a 'shell' of light around the Earth.
B.The Sun's energy does not keep the atmosphere in place; Earth's gravity does.
C.The Sun's heat melts the air so it sticks to the ground.
D.The Sun's light pushes the air down toward the Earth's core.
Download the worksheet for Earth and Space - The Sun as an Energy Source to practice offline. It includes additional chapter-level practice questions.