Units / Unit A / Acids, Bases, Properties, and WHMIS

Acids, Bases, Properties, and WHMIS

Classify compounds by properties; WHMIS-aware safe practices (A-GO2-SO1, SO5, SO8).

Full lesson guide (printable)

Outcome checklist

Alberta Program of Studies — tick each row when you can explain it without the slide.

A-GO2-SO1
By the end of this lesson you should be able to: Illustrate an awareness of WHMIS guidelines, and demonstrate safe practices in the handling, storage and disposal of chemicals in the laboratory and at home
Self-check: Without looking at your notes, give one example or explanation that shows you meet A-GO2-SO1.
A-GO2-SO5
By the end of this lesson you should be able to: Classify ionic and molecular compounds, acids and bases on the basis of their properties; i.e., conductivity, pH, solubility, state
Self-check: Without looking at your notes, give one example or explanation that shows you meet A-GO2-SO5.
A-GO2-SO8
By the end of this lesson you should be able to: Outline the issues related to personal and societal use of potentially toxic or hazardous compounds (e.g., health hazards due to excessive consumption of alcohol and nicotine; exposure to toxic substances; environmental concerns related to the handling, storage and disposal of heavy metals, strong acids, flammable gases, volatile liquids)
Self-check: Without looking at your notes, give one example or explanation that shows you meet A-GO2-SO8.
A-GO2
Big idea: Explain, using the periodic table, how elements combine to form compounds, and follow IUPAC guidelines for naming ionic compounds and simple molecular compounds
Self-check: How does today's lesson connect to A-GO2?

Where this shows up later

Unit A — Polarity and solubility: Acid strength links to particle behaviour in water.

Glossary

acid: Key vocabulary for this lesson (acid). Use your class notes and the slide explanations to state it in your own words — Alberta Science 10 expects you to use this term correctly in context.
base: Key vocabulary for this lesson (base). Use your class notes and the slide explanations to state it in your own words — Alberta Science 10 expects you to use this term correctly in context.
pH: Key vocabulary for this lesson (pH). Use your class notes and the slide explanations to state it in your own words — Alberta Science 10 expects you to use this term correctly in context.
conductivity: Key vocabulary for this lesson (conductivity). Use your class notes and the slide explanations to state it in your own words — Alberta Science 10 expects you to use this term correctly in context.
WHMIS: Key vocabulary for this lesson (WHMIS). Use your class notes and the slide explanations to state it in your own words — Alberta Science 10 expects you to use this term correctly in context.
SDS: Key vocabulary for this lesson (SDS). Use your class notes and the slide explanations to state it in your own words — Alberta Science 10 expects you to use this term correctly in context.

Lab and demo watch-outs

Before lab or demo
Demo: conductivity tester, pH strips, WHMIS pictograms.
Follow your teacher's instructions and school safety rules.
WHMIS and lab practice
Follow school lab procedures and WHMIS labels for any chemicals shown.
Whenever chemicals or equipment are used in class.

Slide 1 of 813%

Hook

Household chemicals

Kitchen cleaners vs drain acid — why labels matter in Alberta homes and schools.

Core explanation

We start with a real situation: Kitchen cleaners vs drain acid — why labels matter in Alberta homes and schools. Your job is to notice evidence and ask questions before memorizing definitions.

Check your understanding

Can you connect this slide to something we learned earlier today?

Explain moreDeeper teaching notes — read like a tutor explaining the idea

Unit A — Acids, Bases, Properties, and WHMIS: Acids and bases have operational definitions; WHMIS keeps lab work safe. On this slide («Household chemicals»), the science story is: Kitchen cleaners vs drain acid — why labels matter in Alberta homes and schools. Read like a tutor: connect each bullet to evidence or a model, not memorized wording. Alberta Science 10 expects you to explain ideas in class discussions and written work — this slide supports outcomes A-GO2-SO1, A-GO2-SO5.

Worked example(s)Step-by-step reasoning, not just answers

Apply: Household chemicals
1. State the core idea: Kitchen cleaners vs drain acid — why labels matter in Alberta homes and schools.
2. Link to a second point: Kitchen cleaners vs drain acid — why labels matter in Alberta homes and schools.
3. Give one Alberta or daily-life example that fits both ideas.
4. Check your example against the slide — would your teacher agree?
Why this works: Application proves understanding beyond repeating bullets.

Common mistakes to avoid

Strong acid vs concentrated acid confusion.
On «Household chemicals», use the slide model and vocabulary (acid, base, pH, conductivity) to replace this idea.

Try it yourself

Teach «Household chemicals» aloud in 60 seconds using two bullets and one vocabulary word from acid.