Monday, Sept. 19 th DO NOW

1. Monday, Sept. 19thDO NOW Try to answer the following questions in your notebook. 1. What is matter? 2. What is an example of matter? 3. How can you describe matter?

2. Essential Question: What are properties of matter? • Objective: I can understand the difference between a physical property and a chemical property of matter and can demonstrate understanding by completing an exit slip with 80% or higher accuracy.

3. Copy this investigative question below on a new piece of notebook paper. This piece of notebook paper will serve as your Lab sheet. It will be taken up on your way out today.

4. Investigative Question: How can we describe matter? • Task: Examine the objects that are in your box that you are given. Use your observations to classify these objects into at least • 3 categories, but no more than 5. • Record this in your notebook under the investigative question. The object's name MUST be listed under the categories that you have chosen.

5. Example:

6. Investigative Question: How can we describe matter? • Beside your list, identify each object as either containing a single material (S) or containing multiple materials (M). • Single- made of only one material • Multiple-made of more that one material

7. Investigative Question: How can we describe matter? • Answer: Think about it--- • 1. How did you come to classify the objects in the manner that you did? • 2. If everything within the tub was an example of matter, how can we describe matter?

8. We can describe matter by using properties. • The items that were in the box had specific properties that you observed and this led you to classify them into a specific category. Examples:

9. Matter can have many different properties, or characteristics. • Materials can be hard or soft, rough or smooth, hot or cold, liquid, solid, or gas. • Some materials catch fire easily, but others do not burn. • Chemistry is the study of the properties of matter and how matter changes.

10. The properties and changes of any type of matter depend • on its makeup. • Some types of matter are substances and some are not. • In chemistry, a substance is a single kind of matter that is pure, meaning it always has a specific makeup—or composition—and a specific set of properties. • For example, water---it is made of hydrogen and oxygen. • H O

12. Did you have any pure substances in your box?

13. Did you have any mixtures in your box?

14. Every form of matter has two kinds of properties—physical properties and chemical properties. Example: a physical property of water is that it will change state I could take a glass of water and put it in the freezer and it would become ice.

16. Unlike physical properties of matter, some properties can’t • be observed just by looking at or touching a substance. • A chemical property is a characteristic of matter that describes its ability to change into different substances.

17. To observe a chemical property you must try to change the matter chemically. • For example: iron • When iron reacts with oxygen and water, it changes to rust. • Therefore, iron has a chemical property about it---it has the ability to change to rust.

18. Other chemical properties • Notecard- • Paperclip- • Block- • Cracker- • Baking soda-

19. EXIT SLIP • 1. What is a physical property of the notebook paper? • 2. What is a chemical property of the notebook paper?