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science test tomorro
Question | Answer |
---|---|
what are the 2 smaller parts on an atom | hydrogen |
what is the big part on an atom | oxygen |
diffusion | when a molecule moves from an area of higher concentration to an area of lower concentration |
surface tension | the tightness across the surface of water caused by the polar molecules pulling on each other |
cohesion | a pin can float on the surface of water- water strider |
capillary action | the combined force of attraction among H2O molecules and molecules of surrounding materials |
formula for figuring density of a liquid | divide mas by volume D=m/v |