How can we find out which rock,pebble or stone is the hardest? By hollie,autumn,izzy and ffion

What we need:

Safety goggles

A a wall without windows

Ruler

Stones

What we will do:

Scrap stones agents the wall

Stand far away and throw the stones at the wall and see if it scratches or breaks it.

How we can keep safe:

Stand 3 metres away

Make sure there are no people around you

Credits:

Created with images by falco - "iceland volcanism landscape" • GregMontani - "stones beach coast"

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