3rd Grade Science Games
Experiments, observations & the natural world
Most popular
Minerals We Use
Wire each mineral to something people make or do with it.
Ocean Zones
Sort ocean life by how deep it lives: the sunlit, twilight or midnight zone.
Plant Adaptations
Wire each plant feature to how it helps the plant survive.
Camouflage
Hunt for the animals that hide by blending in — not the ones that show off.
Levers, Pulleys and Wheels
Sort everyday tools into levers, pulleys and wheels and axles.
Simple Machine Scavenger Hunt
Hunt for the simple machines hiding among everyday things.
Building with Simple Machines
Pick the simple machine that makes each job easier.
Evaporation, Condensation and Precipitation
Sort what is happening to the water in each picture.
Ecosystems in Balance
Keep a pond ecosystem in balance as plants and animals depend on each other.
Producers, Consumers and Decomposers
Sort living things by their job in a food web.
Hibernation and Migration
Sort animals by what they do in winter: hibernate, migrate, or stay active.
Igneous, Sedimentary and Metamorphic Rocks
Sort rocks and how they form into the three rock types.
Soil Samples
Test each sample and decide: sandy soil, clay soil, or loam?
Weather and Climate
Sort sentences: today's weather, or a place's climate over many years?
Animal and Plant Life Cycles
Put the stages of animal and plant life cycles in order.
How Earth Changes
Wire each Earth change to what happens — some fast, some very slow.
Forces and Motion
Predict how a push or pull will change the way something moves.
Light and Shadows
Predict whether light passes through each material.
Properties of Matter: Sink or Float
Hunt for the things that would float in water.
Preventing Pollution
Choose the actions that keep air, water and land clean.
Frequently Asked Questions
- How many free 3rd Grade science games are there?
- LittleActivity has 33 free, interactive science games designed specifically for 3rd Grade students. New games are added regularly.
- Are these science games aligned with school curriculum?
- Yes. All 3rd Grade science games are aligned with Common Core and state standards. They cover the key skills and concepts taught at this grade level.
- Do I need to create an account to play?
- No. All games are 100% free with no signup required. Just pick a game and start playing instantly in your browser on any device.
- Can my child play these games on a tablet?
- Yes. All LittleActivity games are designed to work on any device — desktop, tablet, or phone. No app download is needed.
- What skills do these science games develop?
- These games develop science fluency, critical thinking, and problem-solving skills through interactive gameplay. They reinforce classroom learning in a fun, pressure-free environment.