Do Now for 9/12/13 Take out your composition book and open your textbook to page A-3. HW: Safety Contracts signed Complete analysis questions

A1 Handling Hazardous Materials Today’s Target: I will know what to do if I find something and I Don’t know what it is.and I Don’t know what it is. Project questions Introduce Activity Thought Questions Video Clip

A1 Handling Hazardous Materials What does it mean when a substance is hazardous? What Hazardous substances can you name? How do you know if a substance is hazardous?

A1 Handling Hazardous Materials Observe the materials in the container – Do you think the materials in this mixture are hazardous? How many different substances do you think are in the bottle? What is your evidence? – Evidence – Information gained by observation or another source that can be used to formulate an idea. A fact or piece of information that helps you come to a conclusion.

A1 Handling Hazardous Materials Mixture – A combination of more than one pure substance that can be physically separated. Based on your observations, do you think the material in the container is a mixture or a pure substance? What is your evidence? – Write your answer in your science notebook: I think the material in the bottle is…because…

A1 Handling Hazardous Materials If you found an old jar under your sink that contained what appears to be rusty pieces of metal and an oily liquid, what would you do with the mixture?

A1 Handling Hazardous Materials Read Background on page A-4 Watch DVD Make a list in your composition book of the procedures and precautions the hazmat team took with the barrel. Title it: Handling an Unknown Substance Hazardous Materials – a phrase that describes substances that are harmful to human health or the environment if not handled with caution. Can be solids, liquids, or gases.

A1 Handling Hazardous Materials Compare your list with the people in your lab group. – Expectations for working in groups Stay focused on the task at hand. EVERYONE contributes. Treat each person with kindness and respect.

A1 Handling Hazardous Materials Analysis Questions – Write in your composition book. All answers should be in complete and full sentences. 1. Work with a partner in your group to answer. 2. Work with a partner in your group to answer. 3. Answer with your entire lab group. 4. Answer on your own, complete for homework if necessary.

A1 Handling Hazardous Materials Key Concepts Unknown substances should be considered hazardous. Safety precautions should be used when dealing with unknown or hazardous materials. Precautions can include: (Write YOUR thoughts and ideas here)

A1 Handling Hazardous Materials Key Terms Evidence – Information gained by observation or another source that can be used to formulate an idea. A fact or piece of information that helps you come to a conclusion. Mixture – A combination of more than one pure substance that can be physically separated. Hazardous Materials – a phrase that describes substances that are harmful to human health or the environment if not handled with caution. Can be solids, liquids, or gases

Exit Ticket Take out a 3x5 card and put your name, today’s date, and this period in the upper right hand corner. Answer the following question on your card: – Name three (3) precautions you would take if you found an unknown substance under your sink. DUE AT THE END OF THE PERIOD!!!