GRADE 9 SCIENCE Unit 1: Atoms, Elements and Compounds.
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Transcript of GRADE 9 SCIENCE Unit 1: Atoms, Elements and Compounds.
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GRADE 9 SCIENCEUnit 1: Atoms, Elements and Compounds
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In your Notebooks:
Unit 1: Atoms, Elements, and Compounds
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Unit Opener: Page 2-3
• The “Stadium Corral”
• Ripples are electrons• Act like “waves”• Very important discovery• Equations predict the high and low points of the waves• Same equations / theory predicted lasers and micro circuitry used
in advanced computers today!
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Unit Opener: Page 2-3
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Finding Out Activity: Combining Chemicals (P. 5)
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Activity Summary:What did you observe?
How might you explain your observations?
Safety Considerations?
Important skills?
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Chapter Opener (P. 6-7)
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Lab Safety
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Lab Safety•Safety MUST be our top priority!
•Need to know the rules BEFORE the lab and use them IN the lab!
• If not something like this could happen to one of you.
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Lab Safety•Activity 1-1A (Page 9)•Create a sub heading and record your ideas in your note book
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Appendix A: Lab Safety Rules
• We will be quizzed on these rules
• You will have to pass a quiz on these rules to complete our next lab activity
• Read the rules and complete the practice quiz that follows the rules.
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WHMIS• Stands for Workplace Hazardous Materials Information System
• It is very important to know these symbols, especially if you are working around dangerous products.
• Video
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WHMIS
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• WHMIS is useful because you can very quickly see what type of hazard a chemical substance presents.
WHMIS
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MSDS
MSDS stands for material safety data sheet
• An MSDS gives us much more information! This helps people working with chemicals to remain safe on the job.
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MSDS
MSDS stands for material safety data sheet
• An MSDS gives us much more information! This helps people working with chemicals to remain safe on the job.
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MSDS• Each chemical substance has an MSDS. This tells you important things like:
• Possible health effects of the chemical
• What to wear when handling it
• First aid procedures in case of emergency
• How to store and dispose of it properly
• What to do if it catches fire
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WHMIS vs MSDS• WHMIS only tells us HOW a controlled product is harmful.
• MSDS tells you specific information about the controlled product.
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MSDS Activity
In Groups of 2:Answer the questions provided relating to your MSDS sheet:
Homework:p. 15 #1 – 3, 6. (Use pages 10-13 to answer. We did not discuss all of these safety considerations!!)
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