paper lifts when air blown across the curie because of air pressure thinnest object in whole world seen by human eye rainbow colours because they have 2 surfaces trap water then
reflect and reflect the light inside a nappy is a powder chemical . chemical reactions
are when you mix 2 or more things together - changes
the state . of colour white light made
up of 7 colour = rainbow only substance on earth that exists in Gus/ liquid/ solid/ use energy- the ability to do work
fast moving a air pushes up while gravity pulls down . all plastics are made of polymaths. which turns liquid into solid
