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A wheel sits on a cable tightrope, with two masses extending from the wheel so they hang below the cable tightrope

A wheel can move along a tightrope cable without falling off, if the wheel's centre of mass is altered.

8+ Experiments and activities Exhibit
A black and orange exhibit table, with matching information panel at the back. On the table sits two silver pistons with black handles and a purple base between them.

Pressure applied over an area generates a force that can do work. Changing the area or the pressure increases or decreases the force.

8+ Experiments and activities Exhibit
A glass with liquid which has bubbles on the surface and other bubbles suspended within the fluid

You’ve seen regular bubbles that are made of a layer of liquid that surrounds a sphere of air. Now it’s time to try making antibubbles! These are bubbles that are made of a layer of air surrounding a sphere of liquid.

4+ Experiments and activities
A series of three blue wheels of different thicknesses sitting on a red table.

A wheel's rotational inertia changes when its mass is mostly located near the centre or near the rim.

8+ Experiments and activities Exhibit
A woman in a zoo environment is holding a baby crocodile.

Join BJ and Dion as they discover all about Reptiles and Frogs in this edition of Science Time.

3-6 Experiments and activitiesVideos