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Properties. Something we use to describe an object http://www.youtube.com/watch?v=gCbqjs-pqJo Physical Properties What does it: Smell like Taste like Look like Sound like Feel like. Physical or Chemical Change? Decide. Physical or Chemical Change?. Physical or Chemical Change?.
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Properties Something we use to describe an object http://www.youtube.com/watch?v=gCbqjs-pqJo Physical Properties What does it: Smell like Taste like Look like Sound like Feel like
A Closer Look: Chemical Vs. Physical Change Physical change: • Material is the same before and after the change • The change can be “undone.” For example: Ice melting
A Closer Look: Chemical Vs. Physical Change • Chemical change: • The substance @ the beginning is not @ the end • New substances are formed • The change cannot be • “undone." For example: Nail rusting
A Closer Look: Chemical Vs. Physical Change
Solutions • Solution- a mixture of 2 substances • Solute- the substance being dissolved; lesser in amount • Solvent- the liquid that does the dissolving; larger in amount • Solutes & Solvents may be in any state: solid, liquid or gas
TypesofSolutions Heat affects Solubility The hotter the liquid the more Solute it can hold.