REVIEW OF TERMS AND CONCEPTS WORKSHEETS HHPS AND WHMIS SYMBOLS ALL MIXED UP. Name: Date:

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1 1 Name: Date: REVIEW OF TERMS AND CONCEPTS WORKSHEETS AND SYMBOLS ALL MIXED UP 1. You need to KNOW ALL 20 SAFETY SYMBOLS. Identify whether each symbol is a or a symbol, then write the name of each symbol below it.

2 IDENTIFY THE SAFETY SYMBOLS ON THE PRODUCT 2. Using the information provided in each Safety Scenario, determine if the product involved should have a or warning, and sketch the correct symbol that should be on the label. 2 Safety Scenario a) You are cleaning out the garage at home and you look at some of the empty bottles of antifreeze left over from the winter. The symbol states it is highly dangerous and poisonous. or? Sketch the correct safety symbol that should be on the container of the Product. b) In the school office, you notice one of your teachers changing the toner in the photocopying machine. The new toner cartridge has a warning symbol suggesting that the material is poisonous and has immediate toxic effects. c) At a local hospital you see a truck deliver new oxygen tanks. These industrial sized tanks have large warning symbols on them suggesting that the gas inside is under high pressure. d) Wet weather is approaching and you decide it is time to protect your shoes with spray-on protectant. You look at the label and see a symbol suggesting you to be mildly cautious when you use the spray can as it could explode if put under the incorrect conditions. e) Your mother asks you to clean the bathtub and you look under the sink for the proper cleaner. The product you find tells you that you should wear rubber gloves if you have sensitive skin. f) You are walking on the beach and see that some garbage has washed onto the shore. You take a closer look and you see the bag is full of disposable syringes, needles and discarded latex gloves. The bag containing this waste has a large warning symbol on it. g) You are going camping for the weekend and decide to take along a small stove. On the way you stop at Canadian Tire and purchase a small bottle of propane. You are warned by the symbol on its label that it is very dangerous and may be flammable if put under the improper conditions. h) You enter a chemistry lab and you notice that the teacher has several chemical bottles our on the desk for a demonstration. One jar contains the element calcium. Your teacher tells you during the demonstration that the calcium will cause burns to body tissues if it comes into contact with them. As well, it also catches fire easily.

3 IDENTIFYING LAB SAFETY HAZARDS 3 3. The illustration below demonstrates many broken lab safety rules. Identify at least 20 of these hazards. Number the safety hazard directly on the diagram and then give a brief description of the hazard below

4 REVIEW YOUR SAFETY RULES 4 4. Fill in the blanks with the correct term(s) in order to complete each statement about lab safety. a) All injuries or broken equipment should be reported to your. b) If you have you should tie it back before starting the lab. c) Make sure you understand the for each substance before you use it. d) are worn to protect your eyes from particles and objects that could enter during an experiment, even if you already have corrective eyeglasses on. e) If you need to wear corrective eyewear, you should always wear and never because chemicals can get underneath these. f) Broken or cracked should always be reported to the and then placed in the proper waste container. g) Ensure that equipment and glassware is NOT placed near the of your lab bench. h) During a lab, the type of footwear that should NOT be worn are. i) You lab station should always be kept. j) Before you start your lab, the should be moved to the side of the room because you will be during your lab. k) Your lab bench should only contain your equipment, chemicals, instruction sheets and writing implements. Your should be moved to the side of the room. l) When using a scoopula to gather chemical #1, the same scoopula to gather chemical #2. m) If your teacher says that it is okay to smell a chemical, the method should be used. Why is this method used? n) Though you may be allowed to smell SOME chemicals, you must never any chemicals. o) If a chemical splashes into your eyes, the station should be used for at least minutes. Burns should be held immediately under cool water for minutes. p) Never start an experiment without the of the teacher. q) When collecting chemicals, never take than what you need. Remember to share. r) When you need to create a solution that contains a chemical plus water, always add the first before adding the. This prevents the chemical from up into your face. Some chemicals when added to water also produce a lot of. Adding the water first allows the water to absorb the. s) During the lab, avoid bad habits like putting your in your eyes or mouth because these may be contaminated with chemicals. t) You should never take any chemicals. u) At the end of the lab, all used equipment must be, then then put in. The hotplates must be and all clean equipment must be put. Goggles have to be placed in the goggles storage area. v) When disposing of chemicals, never pour any down the. Always put the chemicals in the appropriately labelled waste containers. w) At the very end, the lab benches must be. You will do this using the cleaning fluid in the and wiping with which you will put in the, not in the. x) When finished with a lab you must always your hands.

5 5 ANSWER KEY Name: Date: REVIEW OF TERMS AND CONCEPTS WORKSHEETS AND SYMBOLS ALL MIXED UP 1. You need to KNOW ALL 20 SAFETY SYMBOLS. Identify whether each symbol is a or a symbol, then write the name of each symbol below it. compressed gas caution poisonous danger corrosive corrosive material caution corrosive danger explosive poisonous: other effects caution explosive danger flammable oxidizing agent warning explosive danger poison biohazardous and infectious warning flammable caution flammable flammable and combustible warning poisonous dangerously reactive poisonous: immediate toxic effects warning corrosive

6 IDENTIFY THE SAFETY SYMBOLS ON THE PRODUCT 2. Using the information provided in each Safety Scenario, determine if the product involved should have a or warning, and sketch the correct symbol that should be on the label. 6 Safety Scenario a) You are cleaning out the garage at home and you look at some of the empty bottles of antifreeze left over from the winter. The symbol states it is highly dangerous and poisonous. or? Sketch the correct safety symbol that should be on the container of the Product. b) In the school office, you notice one of your teachers changing the toner in the photocopying machine. The new toner cartridge has a warning symbol suggesting that the material is poisonous and has immediate toxic effects. c) At a local hospital you see a truck deliver new oxygen tanks. These industrial sized tanks have large warning symbols on them suggesting that the gas inside is under high pressure. d) Wet weather is approaching and you decide it is time to protect your shoes with spray-on protectant. You look at the label and see a symbol suggesting you to be mildly cautious when you use the spray can as it could explode if put under the incorrect conditions. e) Your mother asks you to clean the bathtub and you look under the sink for the proper cleaner. The product you find tells you that you should wear rubber gloves if you have sensitive skin. f) You are walking on the beach and see that some garbage has washed onto the shore. You take a closer look and you see the bag is full of disposable syringes, needles and discarded latex gloves. The bag containing this waste has a large warning symbol on it. or g) You are going camping for the weekend and decide to take along a small stove. On the way you stop at Canadian Tire and purchase a small bottle of propane. You are warned by the symbol on its label that it is very dangerous and may be flammable if put under the improper conditions. h) You enter a chemistry lab and you notice that the teacher has several chemical bottles our on the desk for a demonstration. One jar contains the element calcium. Your teacher tells you during the demonstration that the calcium will cause burns to body tissues if it comes into contact with them. As well, it also catches fire easily. and

7 IDENTIFYING LAB SAFETY HAZARDS 7 3. The illustration below demonstrates many broken lab safety rules. Identify at least 20 of these hazards. Number the safety hazard directly on the diagram and then give a brief description of the hazard below Acid spill. 11. Placing heavy chemicals on high shelf. 2. Broken glass. 12. Unattended Bunsen burner. 3. Food. 13. Equipment on the floor. 4. Chemical spill. 14. Fire extinguisher not in proper place. 5. Unsafe use of Bunsen burner goggles not on. 15. Loose sleeve. 6. Long hair not tied back. 16. Goggles not in use. 7. Food. 17. Untidy and cluttered work surface. 8. Goggles not worn. 18. Sitting during the lab. 9. Alcohol spill. 19. Clutter on chair which should be moved out of the way. 10. Improper transfer and goggles not worn. 20. Standing on stool in the lab.

8 REVIEW YOUR SAFETY RULES 8 4. Fill in the blanks with the correct term(s) in order to complete each statement about lab safety. a) All injuries or broken equipment should be reported to your teacher. b) If you have long hair you should tie it back before starting the lab. c) Make sure you understand the hazards for each substance before you use it. d) Goggles are worn to protect your eyes from particles and objects that could enter during an experiment, even if you already have corrective eyeglasses on. e) If you need to wear corrective eyewear, you should always wear glasses and never contacts because chemicals can get underneath these. f) Broken or cracked glassware should always be reported to the teacher and then placed in the proper waste container. g) Ensure that equipment and glassware is NOT placed near the edge of your lab bench. h) During a lab, the type of footwear that should NOT be worn are open-toed shoes. i) You lab station should always be kept tidy/neat. j) Before you start your lab, the chairs should be moved to the side of the room because you will be standing during your lab. k) Your lab bench should only contain your equipment, chemicals, instruction sheets and writing implements. Your bags and books should be moved to the side of the room. l) When using a scoopula to gather chemical #1, the same scoopula should not be used to gather chemical #2. m) If your teacher says that it is okay to smell a chemical, the hand-waving/wafting method should be used. Why is this method used? To avoid inhaling too much of the substance which may be toxic irritating. n) Though you may be allowed to smell SOME chemicals, you must never taste any chemicals. o) If a chemical splashes into your eyes, the eye wash station should be used for at least 10 minutes. Burns should be held immediately under cool water for 5-10 minutes. p) Never start an experiment without the permission of the teacher. q) When collecting chemicals, never take more than what you need. Remember to share. r) When you need to create a solution that contains a chemical plus water, always add the water first before adding the. chemical This prevents the chemical from splashing up into your face. Some chemicals when added to water also produce a lot of. heat Adding the water first allows the water to absorb the heat. s) During the lab, avoid bad habits like putting your hands in your eyes or mouth because these may be contaminated with chemicals. t) You should never take any chemicals home/out of the lab. u) At the end of the lab, all used equipment must be, washed then rinsed then put in drying rack. The hotplates must be unplugged and all clean equipment must be put back in the proper place. Goggles have to be placed neatly in the goggles storage area. v) When disposing of chemicals, never pour any down the sink/drain. Always put the chemicals in the appropriately labelled waste containers. w) At the very end, the lab benches must be cleaned. You will do this using the cleaning fluid in the spray bottle and wiping with paper towel which you will put in the, garbage not in the recycling. x) When finished with a lab you must always wash your hands.

9 9 Created by Anh-Thi Tang Tangstar Science Copyright May 2013 Anh-Thi Tang (a.k.a. Tangstar Science) All rights reserved by author. This document is for your personal classroom use only. This entire document, or any parts within, may not be electronically distributed or posted to any website.