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Hello everybody, today we are in super science.

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So, today we are supposed to do non-contact forces.

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So here we have a planet Earth with an astronaut, a planet Fofo with a goal.

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And this is representing gravity, so now we are going to start with magnetism.

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Non-contact forces, magnetism.

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Magnetism is a force of attraction or repulsion caused by magnetic materials.

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Magnets attract metals and also make compass work.

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All magnets have two poles, a north pole and a south pole.

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The poles are the parts of the magnet which attract metal objects.

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When two magnets are forced together, two things can happen.

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One, if we put the two poles together, the magnets will help each other.

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This means they will help each other.

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Two, if the opposite holds together, the magnets attract each other. This means they move towards each other.

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So here we've done a magnet, that's another example, but this is the South Pole, and here we've done the North Pole.

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Very good.

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Gravity. Gravity is a force that attracts all objects towards it.

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It is such a planet, half as strong as gravity. Gravity stops everything on Earth from leaning off into other space, and it also causes objects to fall to the ground. Astronauts float in space because there isn't any gravity there.

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So this is a book that we've done made by Emily, Jacobo, Clara, Christian, and Gonzalo.

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Good job. Very good, guys.