1 / 8

Graph of Phase Changes

Graph of Phase Changes. Physical and Chemical Properties. Physical P roperties. Physical Properties- A property of a material that can be observed without changing the makeup of the substance .

venice
Download Presentation

Graph of Phase Changes

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. Graph of Phase Changes

  2. Physical and Chemical Properties

  3. Physical Properties • Physical Properties- A property of a material that can be observed without changing the makeup of the substance. Includes: color, texture, smell, taste, sound, state of matter, boiling point, melting point, density, viscosity, hardness, magnetism, malleability What do you think a physical change would be?

  4. Physical Changes • Changing the appearance or physical property of a material • Does the chemical makeup of paper change when you color it with a crayon? • Does the chemical makeup of water change when you freeze it? • Does the chemical makeup of your hair change when you cut it? These are physical changes!

  5. Density • Density is the measurement of the amount of matter in an area. • If you were comparing a piece of metal and a piece of wood that were exactly the same size, which do you think would be more dense? How would you know? • How does the density of water change when you freeze it?

  6. Chemical Properties • Chemical Properties: A property of a material that has the ability to produce a change in the chemical makeup of the material. Includes: flammability, reactivity What do you think a chemical change would be?

  7. Chemical Changes • Changing the chemical makeup of a material • Does the chemical makeup of paper change when you burn it? • Does the chemical makeup of your hair change when you bleach it? • Does the chemical makeup of baking soda change when you add vinegar? These are all chemical changes!

  8. Clues of a Chemical Change • It is often difficult to tell if the chemical makeup of a material has actually changed! • Here are some clues to let you know if a chemical change has occurred: • A gas is produced in the form of bubbles or smoke • The color has changed • A precipitate (solid) has formed

More Related