Earth and Space
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
The Solar System
SubtopicThe Solar System under Earth and Space for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
At what time of day would your shadow usually be the shortest?
A.Sunrise
B.Noon
C.Sunset
D.Midnight
- 2.
Which of these planets has the most moons?
A.Venus
B.Mercury
C.Earth
D.Saturn
- 3.
What is the Sun mostly made of?
A.Rock and metal
B.Ice and water
C.Hot gases
D.Liquid lava
- 4.
When the Moon moves into the Earth's shadow, it is called a:
A.Solar eclipse
B.Lunar eclipse
C.New Moon
D.Orbit
- 5.
The diagram shows a partial sequence of the Moon's phases as it orbits the Earth over the course of a month. Which phase correctly replaces 'Phase X' in this cycle?
A.Waning Crescent
B.Third Quarter
C.Waxing Gibbous
D.Waning Gibbous
- 6.
Which of the following determines the length of a planet's day?
A.The time it takes to orbit the Sun
B.The speed at which it rotates on its axis
C.Its distance from the Sun
D.The number of moons it has
- 7.
Which planet has a Great Dark Spot and is the windiest planet in the solar system?
A.Jupiter
B.Saturn
C.Neptune
D.Uranus
- 8.
During which moon phase can a total Solar Eclipse occur?
A.Full Moon
B.New Moon
C.Third Quarter
D.Waxing Crescent
- 9.
What is the name of the boundary marking the limit of the Sun's solar wind and its magnetic field influence?
A.The Kuiper Belt
B.The Heliopause
C.The Stratosphere
D.The Asteroid Belt
- 10.
Which of these statements about the Asteroid Belt is correct?
A.It is a planet that exploded long ago
B.It consists of millions of rocky fragments that never formed a planet due to Jupiter's gravity
C.It is located between Neptune and the edge of the Solar System
D.It is where all comets come from
Download the worksheet for Earth and Space - The Solar System to practice offline. It includes additional chapter-level practice questions.
Causes of Day, Night, and Seasons
SubtopicCauses of Day, Night, and Seasons under Earth and Space for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
Which season occurs when the Northern Hemisphere transitions from tilting toward the Sun to tilting away?
A.Spring
B.Summer
C.Autumn
D.Winter
- 2.
How does the angle of sunlight affect the temperature of a region?
A.Direct sunlight makes it colder
B.Indirect sunlight makes it warmer
C.Direct sunlight makes it warmer
D.The angle has no effect
- 3.
If the North Pole is tilted away from the Sun, what season is it in the USA?
A.Summer
B.Winter
C.Spring
D.Autumn
- 4.
What is the term for the shortest day of the year in the Northern Hemisphere?
A.Summer Solstice
B.Winter Solstice
C.Vernal Equinox
D.Autumnal Equinox
- 5.
The diagram shows the relationship between the time taken for Earth's rotation and its revolution. If the Earth's rotation speed was halved so that one full spin took 48 hours, but the time taken to orbit the Sun remained the same, how would the number of days in one year change?
A.The year would have approximately 730.5 days.
B.The year would have approximately 182.6 days.
C.The year would still have 365.25 days.
D.The year would have only 24 days.
- 6.
A newly discovered planet, 'Planet Z', has the characteristics shown in the diagram. Based on this information, how do the lengths of a single day and a single year on Planet Z compare to those on Earth?
A.Planet Z has a longer day and a shorter year than Earth.
B.Planet Z has a shorter day and a longer year than Earth.
C.Planet Z has a longer day and a longer year than Earth.
D.Planet Z has a shorter day and a shorter year than Earth.
- 7.
Which of the following describes the Earth's position during the December Solstice?
A.The North Pole is tilted toward the Sun
B.The South Pole is tilted toward the Sun
C.Neither pole is tilted toward the Sun
D.The Earth is at its furthest point from the Sun
- 8.
If a planet has a rotation period of 10 hours and a revolution period of 500 Earth days, which of the following is true?
A.Its day is shorter than Earth's, but its year is longer.
B.Its day is longer than Earth's, and its year is longer.
C.Its day is shorter than Earth's, and its year is shorter.
D.Its day and year are both shorter than Earth's.
- 9.
Which of the following would NOT happen if Earth's axis were perpendicular (no tilt) to its orbital plane?
A.The transition between distinct seasons like Spring and Autumn.
B.The occurrence of 12-hour days and 12-hour nights.
C.The rising and setting of the Sun.
D.The concentration of heat at the Equator.
- 10.
Why does the Sun appear to be larger when it is near the horizon than when it is high in the sky?
A.It is an optical illusion; the Sun's physical size doesn't change.
B.The Sun is closer to the Earth in the morning and evening.
C.The atmosphere acts as a magnifying glass at sunset.
D.The Earth rotates slower at dawn and dusk.
Download the worksheet for Earth and Space - Causes of Day, Night, and Seasons to practice offline. It includes additional chapter-level practice questions.
Phases of the Moon
SubtopicPhases of the Moon under Earth and Space for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
If you are looking at a Waxing Gibbous Moon, which description is most accurate?
A.It is a thin sliver getting smaller
B.It is almost a full circle and getting larger
C.It is a half-circle and getting smaller
D.It is completely dark
- 2.
The phases of the Moon are a repeating pattern. What is this pattern called?
A.The Solar Cycle
B.The Lunar Cycle
C.The Seasonal Cycle
D.The Earth Cycle
- 3.
The Moon reflects light from the Sun. What is the common name for this light when it reaches Earth?
A.Starlight
B.Earthlight
C.Moonlight
D.Solar wind
- 4.
Which phase comes immediately before the Waning Crescent?
A.New Moon
B.First Quarter
C.Third Quarter
D.Full Moon
- 5.
What shape is the Moon when it is in the 'Gibbous' phase?
A.A perfect circle
B.A thin banana shape
C.An oval-like shape that is almost a full circle
D.A semi-circle
- 6.
How much of the total Moon's surface is illuminated by the Sun during the 'Crescent' phase?
A.10%
B.25%
C.50%
D.75%
- 7.
Which of the following determines how much of the Moon's illuminated side we see?
A.The Moon's distance from the Sun
B.The Moon's position in its orbit around Earth
C.The speed of the Moon's rotation
D.The tilt of the Earth's axis
- 8.
Why does the Moon appear to rise about minutes later each day?
A.The Earth's rotation slows down.
B.The Moon moves further away from Earth.
C.The Moon moves in its orbit in the same direction as Earth rotates.
D.The Moon's gravity drags against Earth's atmosphere.
- 9.
During which phase transition does the Moon's visible illuminated area decrease from to ?
A.Full Moon to Third Quarter
B.Third Quarter to New Moon
C.New Moon to First Quarter
D.First Quarter to Full Moon
- 10.
Which phase would be visible in the sky at PM?
A.Full Moon
B.Waxing Crescent
C.Waning Gibbous
D.Third Quarter
Download the worksheet for Earth and Space - Phases of the Moon to practice offline. It includes additional chapter-level practice questions.
Stars and Galaxies
SubtopicStars and Galaxies under Earth and Space for Grade 6 IGCSE.
Preview questions (no answers)
- 1.
Which of these celestial objects is NOT a star?
A.The Sun
B.Polaris
C.The Moon
D.Sirius
- 2.
What is the definition of a star cluster?
A.A group of stars that are very close together
B.A group of planets orbiting a star
C.A single star with many moons
D.A cloud of gas with no stars
- 3.
In the life cycle of a star like our Sun, which stage is it currently in?
A.A newly born protostar
B.Middle-aged star
C.A dying supernova
D.A black hole
- 4.
What do we call an area in space where gravity is so strong that even light cannot escape?
A.A white dwarf
B.A nebula
C.A black hole
D.A galaxy arm
- 5.
Why is it difficult for astronomers to see the center of the Milky Way using visible light?
A.The center of the galaxy contains no stars
B.Thick clouds of dust and gas block the view
C.The center is moving too fast to be photographed
D.The light from the Moon is too bright
- 6.
Most of the stars in the Milky Way galaxy are:
A.Larger and hotter than the Sun
B.Exactly the same size as the Sun
C.Smaller and cooler than the Sun
D.Made of solid rock
- 7.
When a very massive star reaches the end of its life, it can explode in a brilliant flash of light. This event is called a:
A.Nebula
B.Supernova
C.Protostar
D.Solar Flare
- 8.
Why do different constellations appear in the night sky during Summer compared to Winter?
A.The stars are moving around the Earth
B.The Earth's orbit around the Sun changes our view of the night sky
C.The tilt of the Earth causes stars to disappear
D.The Sun blocks different stars during the day
- 9.
Which of the following best describes a 'Supernova'?
A.The birth of a new galaxy
B.A quiet transition of a star into a white dwarf
C.A massive explosion of a high-mass star at the end of its life
D.The collision of two planets in a solar system
- 10.
If you are standing at the Earth's North Pole, which star would appear to stay almost perfectly still in the sky throughout the night?
A.Sirius
B.Betelgeuse
C.Polaris
D.Proxima Centauri
Download the worksheet for Earth and Space - Stars and Galaxies to practice offline. It includes additional chapter-level practice questions.