Units / Unit C

Plant Water Transport and Transpiration

Xylem, phloem, cohesion, adhesion, turgor, and root uptake (C-GO3-SO3).

Long-form student guide · Alberta Science 10 POS · teaching resource (not a cram sheet)

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Outcome checklist

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

C-GO3-SO3
By the end of this lesson you should be able to: Explain and investigate the transport system in plants; i.e., xylem and phloem tissues and the processes of transpiration, including the cohesion and adhesion properties of water, turgor pressure and osmosis; diffusion, active transport and root pressure in root hairs
Self-check: Without looking at your notes, give one example or explanation that shows you meet C-GO3-SO3.
C-GO3
Big idea: Analyze plants as an example of a multicellular organism with specialized structures at the cellular, tissue and system levels
Self-check: How does today's lesson connect to C-GO3?

Where this shows up later

Unit C — Tropisms: Gas exchange and growth responses.

Glossary

xylem: Key vocabulary for this lesson (xylem). 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.
phloem: Key vocabulary for this lesson (phloem). 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.
transpiration: Key vocabulary for this lesson (transpiration). 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.
cohesion: Key vocabulary for this lesson (cohesion). 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.
adhesion: Key vocabulary for this lesson (adhesion). 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.
turgor: Key vocabulary for this lesson (turgor). 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.
root hair: Key vocabulary for this lesson (root hair). 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
Celery in coloured water demo or video; microscope root hair image.
Follow your teacher's instructions and school safety rules.

Lesson walk-through

Slide 1 · Hook

How does water reach the top of a tree?

No pump like a heart — yet leaves transpire litres of water on a sunny day.
Cohesion, adhesion, and pressure differences move the column.

Core explanation

We start with a real situation: No pump like a heart — yet leaves transpire litres of water on a sunny day. Cohesion, adhesion, and pressure differences move the column. 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 C — Plant Water Transport and Transpiration: Water moves in xylem driven by transpiration from leaves. On this slide («How does water reach the top of a tree?»), the science story is: No pump like a heart — yet leaves transpire litres of water on a sunny day. Cohesion, adhesion, and pressure differences move the column. 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 C-GO3-SO3.

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

Apply: How does water reach the top of a tree?
1. State the core idea: No pump like a heart — yet leaves transpire litres of water on a sunny day.
2. Link to a second point: Cohesion, adhesion, and pressure differences move the column.
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

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
On «How does water reach the top of a tree?», use the slide model and vocabulary (xylem, phloem, transpiration, cohesion) to replace this idea.
Transpiration is wasteful — link to cooling and nutrient flow.
On «How does water reach the top of a tree?», use the slide model and vocabulary (xylem, phloem, transpiration, cohesion) to replace this idea.

Try it yourself

Teach «How does water reach the top of a tree?» aloud in 60 seconds using two bullets and one vocabulary word from xylem.

Slide 2 · Learning intent

Learning intentions (Alberta POS)

C-GO3-SO3: Xylem and phloem; transpiration; cohesion and adhesion; turgor and osmosis in root hairs; diffusion, active transport, root pressure.

Core explanation

This slide lists what you are learning today (Learning intentions (Alberta POS)). Your teacher will map each bullet to the Alberta Program of Studies—these are the ideas your class must cover, not extra trivia.

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

Learning intentions (Alberta POS) — C-GO3-SO3: Xylem and phloem; transpiration; cohesion and adhesion; turgor and osmosis in root hairs; diffusion, active transport, root pressure. Connect this slide to 'Plant Water Transport and Transpiration' and to outcome C-GO3-SO3. If anything is unclear, write a specific question for your teacher — vague 'I don't get it' is harder to help.

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

Think through: Learning intentions (Alberta POS)
1. Restate the main idea in your own words: C-GO3-SO3: Xylem and phloem; transpiration; cohesion and adhesion; turgor and osmosis in root hairs; diffusion, active transport, root pressure.
2. List one observation or fact that supports it.
3. State one question you still have.
Why this works: Science 10 rewards clear reasoning, not only recall.

Common mistakes to avoid

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
Use the evidence and vocabulary on this slide ('Learning intentions (Alberta POS)') to replace the incorrect idea with the class model.
Transpiration is wasteful — link to cooling and nutrient flow.
Use the evidence and vocabulary on this slide ('Learning intentions (Alberta POS)') to replace the incorrect idea with the class model.
Treating outcome codes as labels to ignore.
Paraphrase each outcome in everyday language — that paraphrase is what you should be able to explain on your own.

Try it yourself

Explain 'Learning intentions (Alberta POS)' to an imaginary classmate using at least two bullet ideas from the slide.

Slide 3 · Concept

Xylem and upward flow

Xylem vessels carry water and dissolved minerals from roots to shoots.
Transpiration from stomata lowers water potential in leaves — pull on the water column.
Cohesion (water–water) and adhesion (water–xylem wall) help maintain the column.

Core explanation

Xylem and upward flow: Xylem vessels carry water and dissolved minerals from roots to shoots. Transpiration from stomata lowers water potential in leaves — pull on the water column. Cohesion (water–water) and adhesion (water–xylem wall) help maintain the column. In class your teacher will expand on this; use these notes to recall the main science ideas.

Check your understanding

In your notebook, restate the main idea in one sentence without looking.
Name one new vocabulary word and define it in your own words.

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

Unit C — Plant Water Transport and Transpiration: Water moves in xylem driven by transpiration from leaves. On this slide («Xylem and upward flow»), the science story is: Xylem vessels carry water and dissolved minerals from roots to shoots. Transpiration from stomata lowers water potential in leaves — pull on the water column. Cohesion (water–water) and adhesion (wat… 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 C-GO3-SO3.

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

Apply: Xylem and upward flow
1. State the core idea: Xylem vessels carry water and dissolved minerals from roots to shoots.
2. Link to a second point: Transpiration from stomata lowers water potential in leaves — pull on the water column.
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

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
On «Xylem and upward flow», use the slide model and vocabulary (xylem, phloem, transpiration, cohesion) to replace this idea.
Transpiration is wasteful — link to cooling and nutrient flow.
On «Xylem and upward flow», use the slide model and vocabulary (xylem, phloem, transpiration, cohesion) to replace this idea.

Try it yourself

Teach «Xylem and upward flow» aloud in 60 seconds using two bullets and one vocabulary word from xylem.

Slide 4 · Concept

Roots and phloem

Root hairs increase surface area; osmosis into root cells, then into xylem.
Phloem translocates sugars from sources (leaves) to sinks (roots, fruits) — bidirectional.

Core explanation

Roots and phloem: Root hairs increase surface area; osmosis into root cells, then into xylem. Phloem translocates sugars from sources (leaves) to sinks (roots, fruits) — bidirectional. In class your teacher will expand on this; use these notes to recall the main science ideas.

Check your understanding

In your notebook, restate the main idea in one sentence without looking.
Name one new vocabulary word and define it in your own words.

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

Unit C — Roots and phloem: Root hairs increase surface area; osmosis into root cells, then into xylem. Phloem translocates sugars from sources (leaves) to sinks (roots, fruits) — bidirectional. In Alberta Science 10, concepts at this level are about models and evidence, not memorizing trivia. Watch for this common confusion: Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.. Link what you see on the slide to one outcome code from today's learning intentions.

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

Apply: Roots and phloem
1. Identify the key idea: Root hairs increase surface area; osmosis into root cells, then into xylem.
2. Connect to a second point: Phloem translocates sugars from sources (leaves) to sinks (roots, fruits) — bidirectional.
3. Give one new example (different from the slide) that fits both ideas.
Why this works: Application proves you understand the concept beyond repeating the slide.

Common mistakes to avoid

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
Use the evidence and vocabulary on this slide ('Roots and phloem') to replace the incorrect idea with the class model.
Transpiration is wasteful — link to cooling and nutrient flow.
Use the evidence and vocabulary on this slide ('Roots and phloem') to replace the incorrect idea with the class model.

Try it yourself

Explain 'Roots and phloem' to an imaginary classmate using at least two bullet ideas from the slide.

Slide 5 · Guided practice

Explain the celery

Coloured water in xylem shows pathway — predict where colour appears first.
Connect to turgor: loss of water → wilting.

Core explanation

Explain the celery: Coloured water in xylem shows pathway — predict where colour appears first. Connect to turgor: loss of water → wilting. In class your teacher will expand on this; use these notes to recall the main science ideas.

Check your understanding

Try one practice item again without help—did your method change?

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

Unit C — Plant Water Transport and Transpiration: Water moves in xylem driven by transpiration from leaves. On this slide («Explain the celery»), the science story is: Coloured water in xylem shows pathway — predict where colour appears first. Connect to turgor: loss of water → wilting. 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 C-GO3-SO3.

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

Explain the celery
1. Step 1: Coloured water in xylem shows pathway — predict where colour appears first.
2. Step 2: Connect to turgor: loss of water → wilting.
3. Step: Check units and whether the answer fits the science context.
Why this works: Show your method; marks come from reasoning aligned to the Program of Studies.

Common mistakes to avoid

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
On «Explain the celery», use the slide model and vocabulary (xylem, phloem, transpiration, cohesion) to replace this idea.
Transpiration is wasteful — link to cooling and nutrient flow.
On «Explain the celery», use the slide model and vocabulary (xylem, phloem, transpiration, cohesion) to replace this idea.

Try it yourself

Try one practice item for «Explain the celery» closed-book, then compare to the slide.

Slide 6 · STS connection

Alberta agriculture

Crop irrigation and drought stress link to transpiration rates and soil moisture.
Stewardship: water use in prairie agriculture.

Core explanation

Alberta agriculture: Crop irrigation and drought stress link to transpiration rates and soil moisture. Stewardship: water use in prairie agriculture. In class your teacher will expand on this; use these notes to recall the main science ideas.

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

Science, Technology, and Society (STS): Crop irrigation and drought stress link to transpiration rates and soil moisture. Stewardship: water use in prairie agriculture. Alberta expects you to connect science to people and decisions — name who benefits, who bears risk, and what evidence would change your view.

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

Think through: Alberta agriculture
1. Restate the main idea in your own words: Crop irrigation and drought stress link to transpiration rates and soil moisture.
2. List one observation or fact that supports it.
3. State one question you still have.
Why this works: Science 10 rewards clear reasoning, not only recall.

Common mistakes to avoid

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
Use the evidence and vocabulary on this slide ('Alberta agriculture') to replace the incorrect idea with the class model.
Transpiration is wasteful — link to cooling and nutrient flow.
Use the evidence and vocabulary on this slide ('Alberta agriculture') to replace the incorrect idea with the class model.

Try it yourself

Explain 'Alberta agriculture' to an imaginary classmate using at least two bullet ideas from the slide.

Slide 7 · Formative check

Exit ticket

Define transpiration and state where it occurs.
One difference between xylem and phloem transport.

Core explanation

Exit ticket: Define transpiration and state where it occurs. One difference between xylem and phloem transport. In class your teacher will expand on this; use these notes to recall the main science ideas.

Check your understanding

Compare your answer with a partner and fix one thing you would improve.

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

This is a check-in moment, not a secret test. Define transpiration and state where it occurs. One difference between xylem and phloem transport. Use wrong answers as data: note what you thought and what the class model says instead.

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

Think through: Exit ticket
1. Restate the main idea in your own words: Define transpiration and state where it occurs.
2. List one observation or fact that supports it.
3. State one question you still have.
Why this works: Science 10 rewards clear reasoning, not only recall.

Common mistakes to avoid

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
Use the evidence and vocabulary on this slide ('Exit ticket') to replace the incorrect idea with the class model.
Transpiration is wasteful — link to cooling and nutrient flow.
Use the evidence and vocabulary on this slide ('Exit ticket') to replace the incorrect idea with the class model.

Try it yourself

Answer the formative check idea from 'Exit ticket' in two sentences.

Slide 8 · Exit / preview

Next lesson

Gas exchange, stomata, and tropisms — plant control systems.

Core explanation

Wrap-up: Gas exchange, stomata, and tropisms — plant control systems. Review these points after class while the ideas are fresh.

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

Next lesson — Gas exchange, stomata, and tropisms — plant control systems. Connect this slide to 'Plant Water Transport and Transpiration' and to outcome C-GO3-SO3. If anything is unclear, write a specific question for your teacher — vague 'I don't get it' is harder to help.

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

Think through: Next lesson
1. Restate the main idea in your own words: Gas exchange, stomata, and tropisms — plant control systems.
2. List one observation or fact that supports it.
3. State one question you still have.
Why this works: Science 10 rewards clear reasoning, not only recall.

Common mistakes to avoid

Phloem moves water upward only — phloem translocates sugars; xylem moves water and minerals upward.
Use the evidence and vocabulary on this slide ('Next lesson') to replace the incorrect idea with the class model.
Transpiration is wasteful — link to cooling and nutrient flow.
Use the evidence and vocabulary on this slide ('Next lesson') to replace the incorrect idea with the class model.

Try it yourself

Explain 'Next lesson' to an imaginary classmate using at least two bullet ideas from the slide.