Materials: Structures & Uses Physical vs Chemical.

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Presentation transcript:

Materials: Structures & Uses Physical vs Chemical

Entry Task: How can you tell the differences between a physical property and a chemical property?

Homework… Science Fair Assignment #5 Trade and Peer Review Turn in COMPLETE SFA #5

Materials: Structures & Uses Introduction  pg Physical vs Chemical Correct Homework

Physical vs Chemical Change How to tell the difference Physical Change Substance may seem different BUT the way the atoms link up is the same. Size /shape change Dissolving Phase change Chemical Change Changes the way the atoms link up. Makes a new substance. Burning Temperature change w/o outside help Bubbling / gas released Color change Forms a solid (precipitate)

Physical Change or Chemical Change? Dissolving vs Reacting Quick Demo Baggy Lab

Homework: Review Physical vs Chemical: -Physical vs chemical properties practice Prepare for Metal or Nonmetal? Lab - Read sections A.4 & A.5 -Create a pre-lab for Metal or Nonmetal? Lab - Purpose - Procedure re-written in your own words - data table to collect observations