British Sign Language Glossaries of Curriculum Terms

BSL Chemistry Glossary - compression - definition

Definition: Compression happens when we squash something to make it smaller. The atoms in a gas have lots of space between them and move about easily. If your bike gets a flat tyre you have to pump it up again. The pump takes in air and squeezes the atoms together into the tyre, so the tyre goes hard again. You have compressed the air.