Geology Games — Predict, Watch, Understand
These free geology games let a child predict how rocks and the Earth change, watch it happen, and see why. The ground beneath us has a hidden story — rocks that change type, fossils made of stone, a glowing-hot core — so guessing first, then watching, is how it makes sense. No ads, no sign-up.
Predict the family — igneous from cooled magma, sedimentary from pressed layers, metamorphic from heat and pressure.
Predict what a rock becomes — melt and cool, press, or heat it, and it changes type over time.
Predict the order — leaf litter and topsoil above, subsoil, broken rock, then solid bedrock.
Predict the steps — buried in sediment, hard parts slowly turn to stone over a very long time.
Predict the order inward — crust, mantle, liquid outer core, solid inner core, hotter toward the center.
Predict mineral or rock — a mineral is one pure substance; a rock is a mixture of mineral grains.
What kids learn
The Earth is made of rock, and rock comes in three families that slowly change into one another through the rock cycle. On the surface, weathered rock and dead matter build up into soil layers, and buried hard parts can turn to stone as fossils. Deep down, the planet is sorted into layers that get hotter toward the center. And the rocks themselves are built from minerals — pure substances with telltale properties. Each game isolates one of these ideas.
More science games
Explore the full set on the science games hub, including earth & space games and matter games.
Common questions
What are the three types of rock?
Igneous rocks form when melted rock (magma or lava) cools and hardens. Sedimentary rocks form when bits of sand, mud and shells settle in layers and get pressed together — these often hold fossils. Metamorphic rocks form when heat and pressure deep underground change an existing rock into a new one.
What is the rock cycle?
The rock cycle is how rocks slowly change from one type into another over very long times. Melt a rock and let it cool and you get igneous rock; weather it into bits that press together and you get sedimentary rock; bake and squeeze it and you get metamorphic rock. The cycle has no end — it keeps looping.
How do fossils form?
Most fossils form when a living thing dies and is quickly buried in mud or sand. Over a very long time the soft parts rot away while the hard parts — bones, teeth, shells — are slowly replaced by minerals and turn to stone. Much later, erosion can uncover the fossil for us to find.
What are Earth’s layers?
From the outside in: the crust is the thin, solid rocky surface we live on; the mantle is thick, very hot rock that flows slowly; the outer core is liquid metal; and the inner core is solid metal. It gets hotter the deeper you go, all the way to the center.
What age are these geology games for?
Roughly ages 7–13 (grades 2–7), and each game shows its grade band. Soil layers and fossils suit grades 2–5; rock types suits grades 3–6; the rock cycle, Earth’s layers and minerals vs rocks reach grades 4–7. The predict-and-watch format needs no reading-heavy setup.