Units / Unit C / Plant Water Transport and Transpiration

Plant Water Transport and Transpiration

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

Full lesson guide (printable)

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.

Slide 1 of 813%

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.