Space Games — Predict, Watch, Understand
These free space games let a child predict what the sky and the planets will do, watch it happen, and see why. Space is full of ideas that are hard to picture — why the Moon can hide the Sun, what holds a planet in its orbit, why an astronaut floats — so guessing first, then watching, is how it makes sense. No ads, no sign-up.
Predict solar or lunar — line up the Sun, Moon and Earth and watch the shadow fall.
Predict the star pattern — connect the dots, and see which ones the seasons bring.
Predict what counts as a star — the Sun is one — then zoom out to a galaxy of billions.
Predict what holds a planet in orbit — gravity; cut it and the planet flies off straight.
Predict where you weigh less — your mass stays the same, but gravity changes your weight.
Predict rocky or icy — asteroids tumble in a belt; comets grow a tail near the Sun.
What kids learn
Space runs on a few big ideas. Gravity reaches across space to hold moons and planets in orbit, and it is why your weight changes from world to world while your mass does not. When the Sun, Moon and Earth line up we get eclipses. The Sun is a star, one of the billions in a galaxy, and the patterns we call constellations shift with the seasons. Rocky asteroids and icy comets round out the neighborhood. Each game isolates one of these ideas.
More science games
Explore the full set on the science games hub, including earth & space games and forces & motion games.
Common questions
What is the difference between a solar and a lunar eclipse?
In a solar eclipse the Moon passes between the Sun and Earth and blocks the Sun, casting the Moon’s shadow on us. In a lunar eclipse the Earth passes between the Sun and the Moon, so Earth’s shadow falls across the Moon. Both only happen when the Sun, Moon and Earth line up.
Is the Sun a star?
Yes — the Sun is an ordinary, medium-sized star that just looks huge and bright because it is so close to us. The other stars are suns too, only vastly farther away, which is why they look like tiny points of light. Billions of stars together make up a galaxy.
What keeps planets orbiting the Sun?
Gravity. The Sun’s gravity constantly pulls each planet toward it, bending the planet’s path into an orbit instead of a straight line. If that gravity suddenly vanished, the planet would fly off in a straight line — nothing in space would make it curve.
Why would I weigh less on the Moon?
Your mass — how much stuff you are made of — never changes. But weight is how hard gravity pulls on that mass, and the Moon’s gravity is only about one-sixth of Earth’s. So you would weigh about one-sixth as much on the Moon, and much more on giant Jupiter.
What age are these space games for?
Roughly ages 8–13 (grades 3–8), and each game shows its grade band. Constellations and comets suit grades 3–6; eclipses, stars and galaxies, and weight in space reach grades 4–7; gravity and orbits is grades 5–8. The predict-and-watch format needs no reading-heavy setup.