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States of Matter
Year 7 Science
definition | Word |
---|---|
something that does not have a fixed shape or volume, and is easy to squash - like air | gas |
something with a fixed volume but no fixed shape - like water | liquid |
something with a fixed shape and volume - like a rock | solid |
the three different forms that a substance can be in: solid, liquid or gas | states of matter |
forces holding particles together | bonds |
the tiny pieces that everything is made out of | particles |
move backwards and forwards | vibrate |
when particles mix with each other without anything moving them | diffusion |
the force caused by particles hitting a certain area | pressure |
a completely empty space | vacuum |