Matter+Matters

Activity One Bellringer 1. If you were asked to describe an orange to someone who had never seen one, what terms would you use to describe it? 2. Draw a bubble map describing an orange. **A. Click [|here] to access the Utah State science site.**

1. Choose the **Physical Changes** selection in the left column.
 * What is a physical change? Give 5 examples of physical changes.

2. Choose the **Changing Phases** selection.
 * What are the 5 phases of matter? Why are phase changes considered physical changes?

3. Choose the **Chemical Changes** selection.
 * What are chemical changes? Give 5 examples of chemical changes.

4. Choose the **Chemical Change Video** selection.
 * **If you do not have earphones, you may not use the volume.**
 * How is it possible that all those different colored liquids were poured from the same pitcher?

5. Choose the **Chemical Properties** selection.
 * Write down the five physical properties of the object shown.
 * What are two chemical properties of water?
 * What are two chemical properties of the candle shown?

6. Select **Variables.**
 * What variables affect the rate of chemical change?

7. You will view a **PowerPoint presentation.** Be sure to take notes.

[|Elmhurst College] [|Rhode Island College] [|Teacher Bridge] [|More Properties] [|Wikipedia]
 * B. You will be given a tree map to complete. Turn this in for credit.** If you need further information to complete the tree map, use one or more of these links:



Would you like to see the chemistry behind fire? Take a look at [|this!] Is fire a chemical or a physical change? How do you know?


 * C. Everybody loves to watch fireworks.**
 * ** Find out which elements are used in [|firework displays]. In fact, explore the [|entire site.] **
 * ** Answer these [|discussion questions.] **
 * **Are fireworks evidence of a physical or a chemical change? How do you know?**
 * ** View [|video clip one] and answer these [|discussion questions.] **
 * ** View [|video clip two] and answer the [|discussion questions.] **
 * **Answer these questions on the back of your tree map (Part B)**
 * **And now, [|Name That Shell!]**
 * With your partner, complete the [|Design a Firework] sheet.



**D. Density is a physical property**.
 * Density Demonstration (teacher-led)
 * [|Dunkin' for Density]


 * Density Practice with worksheets
 * [|Interactive density activity.] Calculate the density of each object.
 * Physics [|Worksheets]: Read and work out problems.
 * Density [|Activity]



**Activity Two** A. Click [|here] to access an **interactive quiz.** Write down your answers. This will be turned in for credit in your final packet. (Don't cheat; record your actual answers).

B. Click [|here] to learn the difference between reactants and products. What is the Law of Conservation of Mass? How does this law explain the relationship between reactants and products?

C. Do you think you understand both sides of a chemical equation? If so, click [|here]. Describe three chemical changes (include the formula) and three physical changes. What is the difference between them?

D. Read the information on "gray areas". Give three examples of how certain substances break the rules.

E. Try this interactive [|crossword puzzle.] **Activity Three**

Review


 * I. Log on to [|Karen Timberlake's website.]** This website is in the form of a PowerPoint presentation, so use the mouse or keypad to navigate through each page. You need to go only through the pages on Conservation of Mass. The information thereafter is not relative to our study.

a. Be sure to list all the physical and chemical properties as they are shown. b. List also the processes associated with physical and chemical changes of matter. c. If there is a quiz (and, of course, there is!), take it, writing down your answers as you go. d. What is a chemical reaction? What are the reactants and the products of a chemical reaction? e. Write down all the answers to all the Learning Check questions. f. On the Physical and Chemical Changes worksheet, identify each of the scenarios as either physical or chemical change and explain why you think so.

I**I. Click [|here]to take a quiz.** Record your answers and the number correct.


 * Oh, go ahead and take [|another quiz.] Record your answers and the number correct.**


 * III**. I**f time allows, log onto [|this website]** and brush up on your knowledge of physical and chemical properties.
 * Review of all work to date**.

1. Explain physical properties.

2 .Explain chemical properties.

3. What are physical changes? Give 5 examples.

4. What are chemical changes? Give 5 examples.

5. What does density measure? How is it calculated?

**Activity Four ****Project **



**Before beginning this project, you must bring to class a clean wide-mouthed pint fruit jar. At the end of the project, you will be able to take your jar home.** Log on to the [|Crystals] site.

SPI 0807.9.2 Identify the common outcome of all chemical changes. SPI 0807.9.8 Interpret the results of an investigation to determine whether a physical or chemical change has occurred. SPI 0807.9.11 Recognize that in a chemical reaction the mass of the reactants is equal to the mass of the products (Law of Conservation of Mass). SPI 0807.9.7 Apply an equation to determine the density of an object based on its mass and volume. SPI 0807.9.10 Identify the reactants and products of a chemical reaction. SPI 0807.9.2 Identify the common outcome of all chemical changes. SPI 0807.9.8 Interpret the results of an investigation to determine whether a physical or chemical change has occurred.
 * Tennessee Standards addressed:**
 * GLE 0807.9.3 Interpret data from an investigation to differentiate between physical and chemical changes.**
 * GLE 0807.9.7 Explain the Law of Conservation of Mass.**
 * GLE 0807.9.8 Interpret the events represented by a chemical equation.**
 * GLE 0807.9.2 Explain that matter has properties that are determined by the structure and arrangement of its atoms.**

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