Earth & Space Science Games — Predict, Watch, Understand
These free earth and space science games let a child predict what the Earth, Sun and Moon will do, watch it happen, and see why. The sky is full of ideas that feel backwards — the Sun seems to move but it is we who spin, and summer is about tilt, not distance — so guessing first, then watching, is how they finally make sense. No ads, no sign-up.
Predict what makes day and night — the Earth spins; the Sun stays put. The side facing the Sun has day.
Predict where a puddle goes in the sun — it does not vanish; it evaporates, forms clouds, and falls as rain.
Predict the Moon’s shape — the phases come from the angle of sunlight as it orbits, not Earth’s shadow.
Predict what makes summer hot — Earth’s tilt, not its distance from the Sun. The tilted-toward side gets direct sunlight.
What kids learn
The Earth spins, which gives us day and night; the Moon orbits Earth, and the changing angle of sunlight on it gives us the phases; Earth’s tilt as it orbits the Sun gives us the seasons; and water endlessly evaporates, condenses and rains in the water cycle. Each game isolates one of these big ideas and lets the child test a hunch against what really happens.
More science games
Explore the full set on the science games hub, including gravity games and magnet games.
Common questions
What causes day and night?
The Earth spins around once every 24 hours. The half of Earth facing the Sun has daytime; the half facing away has night. The Sun does not travel around the Earth — it looks like it moves across the sky only because we are spinning.
Why does the Moon change shape?
The Sun always lights up exactly half of the Moon. As the Moon orbits the Earth each month, we see more or less of that lit half from down here — a thin crescent, a half, a full moon, and back. The changing shapes are the Moon’s phases, and they are NOT caused by Earth’s shadow (that only happens during a lunar eclipse).
Why do we have seasons?
The Earth’s axis is tilted. As it orbits the Sun, the hemisphere tilted toward the Sun gets direct, concentrated sunlight and has summer, while the hemisphere tilted away gets slanted, spread-out light and has winter. Seasons come from the tilt — not from the Earth being closer to or farther from the Sun.
Where does the water in a puddle go when it dries up?
It does not disappear — the Sun’s heat evaporates it into invisible water vapor, which rises into the air, cools and condenses into clouds, and eventually falls back to the ground as rain or snow. That endless loop is the water cycle.
What age are these earth science games for?
Roughly ages 6–13 (grades 1–7), and each game shows its grade band. Day & Night and the Water Cycle suit the younger grades (1–5); Moon Phases and Seasons reach into grades 4–7. The predict-and-watch format needs no reading-heavy setup.