Class 8 science simulations

Chapter 3: Health: The Ultimate Treasure

• Immune Response: Bacteria get into a cut. How does your body find them and fight back?

Chapter 4: Electricity: Magnetic and Heating Effects

• Scrapyard Crane: Switch on the crane magnet. How many cans can it grab, and how do you make it stronger?

Chapter 5: Exploring Forces

• Friction Drag Test: Pull a block with a newton meter. How hard do you have to pull on ice, wood or sandpaper?
• Electric Fields: Charge a metal ball and hang a tiny pith ball beside it. How far does the invisible push move it?
• Muscle Contraction: Your biceps bends your arm. How hard does it really have to pull to lift a dumbbell?
• Bridge Stress: How can a bridge of thin sticks hold a heavy load? Which sticks are pulled, and which are squashed?

Chapter 6: Pressure, Winds, Storms, and Cyclones

• Tornado Formation: Why does air spin faster and faster as it rushes into a tornado?
• Weather Patterns: Why does wind swirl round a storm instead of blowing straight in?
• Aerodynamics: Blow air over a wing. How fast before it lifts its own weight?
• Hydraulics: Push a little piston gently. Can the oil lift a heavy crate?

Chapter 7: Particulate Nature of Matter

• States of Matter: Solid, liquid, gas: the same molecules, just jiggling harder.

Chapter 9: The Amazing World of Solutes, Solvents, and Solutions

• Crystal Growth: Grow a salt crystal on a thread: why does it come out as a neat cube?
• Solutions: How much can you dissolve in a glass of water, and does warming it help?

Chapter 10: Light: Mirrors and Lenses

• Candle, Lens and Screen: Slide the screen until the candle is sharp. Why is its picture upside down?

Chapter 11: Keeping Time with the Skies

• Moon Phases: A lamp, a globe and a Moon on real gravity: why does the Moon change shape?

Chapter 12: How Nature Works in Harmony

• Ecosystem Balance: Can plants and animals live for weeks in a sealed jar? Where does their oxygen come from?
• Food Web: Who eats whom in a meadow? Take one species away and see what happens to the rest.

More labs

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