Space Exploration

26 Skills in Science. 26 are ready to try — three verified questions each, no account needed.

Ready to try

Ages 5–7
Moon Phases
Observe and describe the Moon's changing shape over about a month, recognising that it goes through a repeating cycle of phases from new moon (invisible) to full moon (complete circle) and back again
9 verified questions on this shelf
Ages 5–7
Our Solar System
Know that there are other planets besides Earth and that our group of planets orbiting the Sun is called the solar system — and that space is the vast area beyond Earth's sky
12 verified questions on this shelf
Ages 5–7
Spotting Constellations
Recognise a few star patterns (constellations) in the night sky, starting with the Big Dipper (the Plough), and understand that the North Star (Polaris) can be found using the Big Dipper
10 verified questions on this shelf
Ages 5–7
Sun, Moon & Stars
Identify the Sun, Moon, and stars as objects in the sky and describe basic differences: the Sun gives light and heat during the day, stars are tiny points of light at night, and the Moon can appear in both the day and night sky
10 verified questions on this shelf
Ages 5–7
What Astronauts Do
Know that astronauts are people who travel to space in rockets, that humans have walked on the Moon (Apollo missions), and that astronauts today live and work on the International Space Station
10 verified questions on this shelf
Ages 7–9
Asteroids, Comets & Dwarf Planets
Identify other objects in the solar system beyond planets: asteroids (rocky bodies mostly between Mars and Jupiter), comets (icy bodies with tails when near the Sun), and meteoroids/meteors/meteorites (space rocks that enter Earth’s atmosp…
10 verified questions on this shelf
Ages 7–9
Earth's Spin & Orbit
Understand that Earth moves in two ways: it rotates (spins) on its axis once every 24 hours causing day and night, and it orbits (travels around) the Sun once every 365 days, which is one year
10 verified questions on this shelf
Ages 7–9
How Telescopes Work
Know that telescopes are instruments that help us see distant objects in space, and that space telescopes like Hubble and James Webb orbit above Earth’s atmosphere to get clearer views of the universe
12 verified questions on this shelf
Ages 7–9
Planet Features
Describe a key feature of each planet: Mercury is smallest and closest, Venus is the hottest, Mars is red with rust, Jupiter is the largest with a Great Red Spot, Saturn has rings, Uranus tilts on its side, Neptune is the farthest and very…
10 verified questions on this shelf
Ages 7–9
Space Robots & Rovers
Describe how robots and rovers have explored places humans cannot easily go — Mars rovers like Curiosity and Perseverance drive across Mars taking photos, collecting rock samples, and searching for signs of past water
10 verified questions on this shelf
Ages 7–9
The Eight Planets
Name the eight planets in order from the Sun (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune), know that Pluto is a dwarf planet, and distinguish rocky inner planets from gas giant outer planets
10 verified questions on this shelf
Ages 7–9
The Moon's Orbit
Know that the Moon orbits Earth approximately once a month, that it does not make its own light but reflects sunlight, and that its changing appearance (phases) is caused by how much of the sunlit side we can see from Earth
12 verified questions on this shelf
Ages 7–9
The Sun is a star
Know that the Sun is a star — the closest star to Earth — and that it is at the centre of our solar system, with all eight planets orbiting around it
10 verified questions on this shelf
Ages 9–11
Changing Ideas About Space
Understand that ideas about the solar system changed over time: ancient people believed Earth was at the centre (geocentric model, Ptolemy), until Copernicus proposed the Sun was at the centre (heliocentric model), later confirmed by Galil…
10 verified questions on this shelf
Ages 9–11
Gravity Pulls Things Down
Understand gravity as a force that pulls objects towards the centre of the Earth, that 'down' means towards Earth’s centre regardless of where you stand on the sphere, and that gravity keeps the Moon orbiting Earth and planets orbiting the…
10 verified questions on this shelf
Ages 9–11
Life Cycle of Stars
Understand the basics of a star’s life cycle: stars are born in clouds of gas and dust (nebulae), shine for millions or billions of years by fusing hydrogen, and eventually die — massive stars explode as supernovae while smaller stars fade…
11 verified questions on this shelf
Ages 9–11
Scale of the Solar System
Use scale models, diagrams, or calculations to represent the relative sizes and distances of objects in the solar system, understanding that the distances between planets are enormously larger than the planets themselves
251 verified questions on this shelf
Ages 9–11
Seasonal Constellations
Recognise named constellations visible in different seasons and understand why we see different constellations at different times of year — because Earth’s orbit around the Sun changes which part of the sky we face at night
10 verified questions on this shelf
Ages 9–11
Space Exploration Milestones
Describe key milestones in human space exploration: the Space Race (Sputnik, Yuri Gagarin, Apollo 11 Moon landing), the Space Shuttle era, the International Space Station, and current missions (Artemis programme, Mars exploration plans, co…
10 verified questions on this shelf
Ages 9–11
The Vast Scale of Space
Describe the scale of the universe in nested layers: Earth is one planet in our solar system, the Sun is one star among billions in the Milky Way galaxy, and the Milky Way is one galaxy among billions in the universe
9 verified questions on this shelf
Ages 9–11
Why the Sun Looks Brightest
Explain why the Sun appears much brighter than other stars: it is the nearest star to Earth, not the biggest or brightest star in the universe — understanding the difference between apparent brightness (how bright something looks) and actu…
10 verified questions on this shelf
Ages 11–13
Finding Exoplanets
Describe how astronomers detect planets around other stars using transit photometry (dip in starlight as a planet crosses) and radial velocity (Doppler wobble of the star), explain the habitable zone concept, and discuss what atmospheric b…
10 verified questions on this shelf
Ages 11–13
Observing with Light Waves
Explain how the electromagnetic spectrum is the primary tool of modern astronomy — different wavelengths (radio, infrared, visible, ultraviolet, X-ray, gamma-ray) reveal different phenomena, why some telescopes must be in space, and what s…
10 verified questions on this shelf
Ages 12–13
Orbital Mechanics
Apply Newton's laws to explain orbital motion: why orbit is continuously falling sideways rather than floating; how a gravity assist (slingshot manoeuvre) transfers momentum from a planet to a spacecraft; and why rockets need to reach a sp…
10 verified questions on this shelf
Ages 12–14
Where Elements Come From
Explain stellar nucleosynthesis: the Big Bang produced mainly hydrogen and helium; main-sequence fusion builds elements up to iron; and supernovae produce elements heavier than iron and scatter them into space — meaning the atoms in our bo…
10 verified questions on this shelf
Ages 13–14
Journey to Mars
Evaluate the engineering and human challenges of long-duration spaceflight to Mars — radiation exposure, muscle and bone loss, psychological isolation, communication delays — and assess the current state of the SETI programme: what methods…
9 verified questions on this shelf

Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.