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Return to Last Slide Viewed. Glossary of Everyday Terms (These terms will be used in this PPT. You do not need to memorize them, but if you run across a word whose meaning you don’t know, always ask Ms. Benton or return to this slide for help.). Corrosive – Dilute – Dispose of -

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  1. Returnto Last Slide Viewed Glossary of Everyday Terms(These terms will be used in thisPPT. You do not need to memorize them, but if you run across a word whose meaning you don’t know, always ask Ms. Benton or return to this slide for help.)

  2. Corrosive – Dilute – Dispose of - Contaminate- Can eat through, destroy matter To make weaker, usually mixing with water To throw away To spoil by adding something that doesn’t belong there

  3. How to Work in GROUPSWorking in groups is not easy; it takes a lot of skills. The following are some of the skills. Talk about them with your group. IMPORTANT NOTE: How you work in a group is graded! Give encouragement • Say things like: “Good job,” “clever idea,” and “That’s great!” Remain on task • Be sure that you are doing the job that you were assigned, not something else • Avoid chatting until the job is finished Only show respect • Say “Please,” “Thank you,” and ” May I?” • Look at the person who is talking (Say “I hear you say …. Is that right?”) • Move softly & speak in a kind tone of voice Use a 12-inch voice (a quiet voice that can only be heard up to 12 inches) Participate • Do your part, even when you don’t want to. • Take your turn; do what needs to be done; don’t just “watch and wait” Stay in your group • Stand or sit close to your group members • Face your own group members at all times; do not “turn away” or “look down” • Do not communicate with other groups with eyes, words, sounds, or actions

  4. Lab Safety Rules

  5. Lab Safety Rules Review • Study the picture in each of the following slides. • Name the safety rule represented by the picture. • Click the mouse or press the space bar to check your answer.

  6. What’s a safety rule depicted here? Directions • Clear the lab area of anything unnecessary • No food in lab • Read the board for directions

  7. What’s the safety rule? Flood eyes with water for 15 to 20 minutes if anything corrosive splashes in them (or if you think anything might have splashed in them).

  8. What’s the safety rule? Know where all safety equipment is located AND how to use it. OR Put out chemical fires with an extinguisher, not water (which will spread the fire!).

  9. What’s a safety rule? Never use a fire extinguisher on a person; instead, use a fire blanket to smother flames on the person.

  10. What’s a safety rule? Never run or horseplay in the lab.

  11. What’s the safety rule? • Never smell a chemical directly. • Always waft (wave) the odor toward your nose by waving your hand over the chemical.

  12. Every year, the question that students miss the most on our first test is: When you wish to dilute an acid (in other words, when you wish to make an acid weaker), do you: Pour the acid into the water, or do you Pour the water into the acid? What’s the safety rule? When diluting acid, always pour the acid into water, never water into acid. Acid Water

  13. Why? Notice where the liquid is splashing from? What if that liquid were mostly acid?

  14. What’s a safety rule? Always wear safety goggles when working with chemicals. Always work with a partner.

  15. What’s a safety rule? • Do not touch anything until you are given directions to do so.

  16. What’s a safety rule? Never stick anything into an electrical socket.

  17. Do nottouch broken glass. Sweep up broken glass with a broom. What are the safety rules? Report all damages toteacherimmediately.(Why? If you leave behind damaged material, others may be hurt AND Ms. Tresten needs time to replace the broken materials for the next class. Place broken glass in the Glass Disposal box, NOT the trash can!

  18. What’s the safety rule? Pay for damages ASAP.

  19. What’s the safety rule? Always check electrical cords. Never use one that is broken or frayed.

  20. What’s the safety rule? Always test whether something is hot by holding the BACK of your hand over it, not by touching it.

  21. What’s the safety rule? Read and follow all directions carefully. It’s a good idea to “check off” each step of a procedure as you conduct it. Directions

  22. What’s the safety rule? Wash hands after every lab.

  23. What’s the safety rule? Never enter the storeroom. Storeroom

  24. What are the safety rules? Always report injuries to the teacher before conducting a lab. Cover all cuts before working with chemicals.

  25. What’s the safety rule? Always clean up spills IMMEDIATELY, whether they are on the lab table or on the floor. Spills can cause dangerous accidents.

  26. What’s the safety rule? When you don’t understand directions, ask the teacher for help. ?

  27. What’s the safety rule? Always read labels twice; they can look similar, but slight mis-readings can have dangerous results. NaOH NaCl Dangerous! Safe!

  28. What’s the safety rule? Never taste a chemical. Never drink from a beaker or other piece of lab equipment.

  29. What’s the safety rule? Always tie back long hair before working with lab equipment.

  30. What’s the safety rule? Always sweep up glass and carry it in a dust pan; NEVER pick it up with your hands.

  31. What’s the safety rule? Never touch anything electrical with wet hands or body.

  32. What’s the lab safety rule? Always wear closed shoes; never go barefoot or wear sandals in lab..    

  33. What’s the safety rule? Always tilt test tubes away from you and everybody else. Contents can spray or spurt on skin and eyes! YOU

  34. What’s the safety rule? If a chemical spills on your skin, flood the area with water immediately – and then tell the teacher!

  35. What’s the safety rule? Be very careful when working with chemicals. Notice the person has two hands outstretched?

  36. If a chemical spills over a large area of your body, use the safety shower immediately! Wear safety goggles! What are the rules?

  37. What’s the safety rule? Always wear safety goggles when working with chemicals, electricity, or flame.

  38. What’s wrong? The scientist needs to use a funnel to pour from test tube into Erlenmeyer flask because test tube has no spout.

  39. What safety rule is being broken? Always tie back long hair.

  40. What safety rule is being broken? Always place broken glass in the GlassDisposalBox ONLY, never in a trash can!

  41. What safety rule is being broken? Always place broken glass in the GlassDisposalBox ONLY, never in a trash can!

  42. Bibliography • Clip art not specifically credited: “Clip Art and Media.” Microsoft Office Online, 2005, 2, Jul. 2005, <http://office.microsoft.com/clipart/default.aspx?lc=en-us&cag=1> • Balance Photograph: "Triple Beam Balance." Precision Measurement Supply. 12 Jul. 2005 <http://www.precisionmeasure.com/tool2.htm>. • Safety goggle cabinet photograph & quote: "Goggle Cabinet and Sterilizer." 2005. Science Kit & Boreal Laboratories. 2 Jul. 2005 <http://sciencekit.com/category.asp_Q_c_E_439794>. • Glass disposal boxes photograph: "Broken Glass Disposal Box." 2005. Krakeler Scientific, Inc.. 2 Jul. 2005 <http://www.krackeler.com/products/fid/2055>. • Hot Plate: "Demonstration Hot Plate." Delta Education Lab Supplies. 12 Jul. 2005 <http://www.delta-education.com/productdetail>. • Magnifying glass photo: "Measurement Buy 4." Tools That Teach. 2005. Arbor Scientific. 12 Jul. 2005 <http://www.arborsci.com/Products_Pages/Measurement/MeasurementBuy4.htm>. • Meter stick: "How Do I Read a Ruler?." OnlineConversion.Com. 2002. 12 Jul. 2005 <http://www.onlineconversion.com/faq_05.htm>. • Meter stick (held in hand) photo: "Catch a Meter Stick." NSCU Physics. 2000. NSCU Physics Education Technology Facility. 12 Jul. 2005 <http://www.arborsci.com/Products_Pages/Measurement/MeasurementBuy4.htm>. • Safety blanket and container photographs: "Fire Safety Kits." Health & Safety. 2005. SAR Camp Equipment Company, Ltd.. 11 Jul. 2005 <http://www.sarcamp.com/store/listCategoriesAndProducts.asp?idCategory=87>. • Safety shower/eyewash photograph & quote: "Emergency Decontamination Shower & Eyewash." Lab Safety Supply, Inc.. 2005. Gempler's. 11 Jul. 2005 <http://www.gemplers.com/a/shop/product.asp?T1=W9209&UID=200507111757083438046975> • Bunsen burner, Cutaway Sketch: "Bunsen Burner." Hutchinson's Encyclopedia. 2005. Tiscali.Reference. 2 Jul. 2005 <http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0033660.html>

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