Physical Change And Elements
Physical Changes within a firework:
Packaging is an example of a physical change due to us visually observing the packaging explode as the fireworks launch out and see the reminence such as paper fall from the sky. -Below are some observations to determine a Physical change. Observations: Heat Colour Sound Light Elements within a firework: -These are classified as elements as they consist of 2 or more same atoms which are joined together which makes up an Element. Strontium (Sr) Barium (Ba) Lithium (Li) Sodium (Na) Copper (Cu) Calcium (Ca) |