Agenda Introduction 2.Homework 3.Identity of the Liquids 4.Reading in Science 5.“Hazard Poster”

Purpose Students will be able to: –Apply the new knowledge regarding the procedure to identify substances. –Follow safety precautions when working with hazardous materials.

Homework Work on projects –Science Fair –Hispanic Scientist/Inventor Complete “Hazard” Poster

Exit Slip How do you separate solids from liquids present in a mixture? Explain.

Properties of Separated Liquids TestLiquid ALiquid B Appearance Miscible in water Miscible in ethanol Contains water Corrosive Toxic Flammable Identity colorless, oily orange, watery no yes

Activity 6: Identifying the Liquids Analysis Questions 1. Look at Table 2, “Information on Selected Liquids,” on the next page (in student book, A25). a. Compare the information from this activity with the information in the table. Look for similarities. b. Based on their properties, what are the identities of liquid A and liquid B? c. Support your answer with at least three pieces of evidence for each liquid. Liquid A is mineral oil. The evidence is that this liquid is colorless; it is not miscible in water or ethanol and does not contain water. Also, it is not corrosive; it is not toxic and it is flammable. Liquid B is iron nitrate. The evidence is that it is orange and miscible in both water and ethanol. Also, it contains water; it is not flammable but it is corrosive and toxic.

Activity 6: Identifying the Liquids Analysis Questions 2. Based on the information in Table 2, “Information on Selected Liquids,” would you label liquid A or liquid B from the mixture as hazardous? Yes! Liquid A and Liquid B are hazardous. Liquid A, mineral oil, should be labeled, “Flammable.” Liquid B, iron nitrate solution, should be labeled “Toxic and Corrosive.”

Reading in Science With an elbow partner read “Nurse In Texas Catches The Ebola Virus”. Answer the three analysis questions on loose leaf paper. Include names, room # and date.

Create a “Hazard Label” Poster as follows: –At your team, choose a type of hazard (table) –Draw a poster that includes (see Activity 2): Hazard name and symbol (drawing) Brief description Safety precautions Closure Include brief description of the hazard. Precautions: explain how to protect yourself TableHazard 1Biohazard 2Corrosive 3Explosive 4Flammable 5Gas 6Oxidizer 7Radioactive 8Toxic