Reprint edition published in April 2020.
Reading Level: 12-25 years
• Demonstrate inertia with a card shot trick.
• Use a cardboard rocket ship to find the centre of gravity.
• Make your own "great salt lake" to display buoyancy.
• Show the push and pull of air currents with a water tower.
• Create "motion madness" with balloon cars.
Ordinary, easy-to-find materials are all you need to get moving on these fun-filled investigations.
125.00 
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