1. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Physical and Chemical Properties Big Picture MS-PS1-2 Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred. MS-PS1-2

2. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Physical and Chemical Properties Do Now If you were asked to describe an orange to someone who had never seen an orange, what would you tell the person? Write your response in your science journal. MS-PS1-2

3. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Periodic Table and Atoms Objectives Identify physical and chemical properties of matter and how matter can undergo physical and chemical changes PS1-1 Agenda Today we will: Complete a group activity worksheet. Do an individual assessment worksheet. Review and exit ticket. Vocabulary physical property chemical property physical change chemical change HOMEWORK- Handout

4. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Physical Properties Physical Properties What Are Physical Properties? A physical property of matter can be observed or measured without changing the matter’s identity. Chapter K1

5. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Physical Properties Chapter K1

6. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Physical Properties Physical Properties, continued Identifying Matter You use physical properties to identify matter. Density Density is the amount of matter in a given space, or volume. The two balls below have different densities. Chapter K1

7. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Chemical Properties Chemical Properties Comparing Physical and Chemical Properties You can observe physical properties without changing the identity of the substance. Chemicals properties are more difficult to observe. Characteristic Properties The properties that are most useful in identifying a substance are characteristic properties. Chapter K1

8. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Chemical Properties Comparing Physical and Chemical Properties Click below to watch the Visual Concept. You may stop the video at any time by pressing the Esc key. Visual Concept Chapter K1

9. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Chemical Properties Chemical Changes and New Substances What Happens During a Chemical Change? During a chemical change a substance changes chemical properties. Signs of Chemical Changes Some common signs of chemical changes includes a change in color, odor, production of heat, fizzing, and so on. Matter and Chemical Changes Chemical changes change the identity of the matter involved. Chapter K1

10. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Chemical Properties Chapter K1

11. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Chemical Properties Physical Versus Chemical Changes A Change in Composition Physical changes do not change the composition of a substance while chemical changes do. Reversing Changes Many physical changes are easily reversed, but most chemical changes cannot easily be reversed. Chapter K1

12. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Click below to watch the Visual Concept. You may stop the video at any time by pressing the Esc key. Section 3 Chemical Properties Comparing Physical and Chemical Changes Visual Concept Chapter K1

13. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Physical Properties Chapter K1

14. Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Physical and Chemical Properties Homework Complete worksheet MS-PS1-2 Exit ticket How do properties provide evidence of the identity of materials?