1 / 11

Changes in Matter

Changes in Matter. What Happens to a Substance in a Physical Change? What Happens to a Substance in a Chemical Change? How are Changes in Energy & Matter Related?. Introduction to Chemistry HAA Grade 7 Maria McCarthy, 11/03/2010. Changing States of Matter.

shalin
Télécharger la présentation

Changes in Matter

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Changes in Matter What Happens to a Substance in a Physical Change? What Happens to a Substance in a Chemical Change? How are Changes in Energy & Matter Related? Introduction to Chemistry HAA Grade 7 Maria McCarthy, 11/03/2010

  2. Changing States of Matter

  3. What Happens to a Substance in a Physical Change? • A Physical Change alters the form of appearance of matter but does not turn any substance in the matter into a different substance. • A substance that undergoes a physical change is STILL the SAME substance.

  4. What Happens to a Substance in a Chemical Change? • A single substance break down into two or more other substances: • H2O2 => H2O + O • Hydrogen Peroxide breaks down into water and oxygen gas when you pour on a cut. • Photosynthesis is a naturally occurring chemical change. Several organic compounds combine with energy from the sun to form new substances. • Combining Borax powder, glue, and water makes a polymer. • Chemical change produces new substances with new and different properties.

More Related