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Museum hall

Science

Discover how the world works — from volcanoes to outer space!

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Expert Wing

Mastery: the toughest exhibits of all.

🎮 Exercise Arcade

🎯 Ages 7-8 · 8

All lessons · 19

1Volcanoes: Mountains of FireWhat volcanoes are, why they erupt, where they live, and the surprising ways they shape our world.Easy⏱ 17 min

2The Water CycleHow water travels from the sea to the sky and back again, in a journey that never ends.Easy⏱ 16 min

3Forces and MotionHow pushes and pulls make everything around us move, stop, and change direction.Easy⏱ 16 min

4Light and ShadowsWhere light comes from, how it travels, why shadows form, and how rainbows are made.Easy⏱ 16 min

5Amazing AnimalsMeet furry, scaly, and feathery animals and discover what makes each one special!Easy⏱ 5 min

6Weather All AroundFind out about sunny days, rainy days, and everything the sky sends our way!Easy⏱ 5 min

7Bugs and InsectsCrawl into the tiny world of bugs and discover their amazing bodies and colors!Easy⏱ 4 min

8The Human BodyTake a tour inside your own body! Learn about bones, muscles, the heart, and more — and find out why each part has an important job to do.Easy⏱ 8 min

9Our Solar SystemMeet the Sun and the eight planets that orbit it, and discover what makes each world special.Medium⏱ 20 min

10Sound and VibrationsHow sounds are made by vibrations, how they travel to your ears, and what makes them high, low, loud or quiet.Medium⏱ 19 min

11Magnets and MagnetismHow magnets attract and repel, why only some materials are magnetic, and how the Earth itself acts like a giant magnet.Medium⏱ 19 min

12Solids, Liquids and GasesThe three states of matter, the tiny particles that make them, and how things change between them.Hard⏱ 24 min

13Electricity and CircuitsHow electricity flows around a circuit to power lights and devices, and how conductors, switches and circuit types work.Hard⏱ 25 min

14Plants and PhotosynthesisHow green plants use sunlight to make their own food, produce the oxygen we breathe, and feed almost every living thing.Hard⏱ 24 min

15Simple MachinesThe six simple machines that make work easier by changing the size or direction of a force.Hard⏱ 23 min

16Rocks and MineralsHow the three rock families form, how minerals build them, and how rocks change in the never-ending rock cycle.Hard⏱ 23 min

17Heat and EnergyWhat energy and heat really are, the three ways heat travels, and how energy changes from one form into another.Hard⏱ 26 min

18Materials and Their PropertiesHow scientists describe and test the properties of materials, and how engineers choose the perfect material for every job.Expert⏱ 28 min

19Atoms and MoleculesThe incredibly tiny building blocks of all matter, the particles inside atoms, and how atoms join to form molecules.Expert⏱ 30 min