Transpiration Lesson Plan

Instructor: Christopher Sailus

Chris has an M.A. in history and taught university and high school history.

Help your students gain an understanding of the process of transpiration with this lesson plan. Students will watch an informative video lesson, participate in class discussion and engage in an in-depth research project.

Learning Objectives

After this lesson, students will be able to:

  • Explain the process of transpiration and its benefits for plants
  • Explain the factors that affect transpiration rates
  • Represent the transpiration process visually


50 minutes plus additional time for the Activity


  • colored pencils and/or markers
  • poster board
  • internet access

Key Vocabulary

At the conclusion of this lesson, students should be able to identify and define the following vocabulary terms:

  • transpiration
  • stomata
  • guard cells
  • photosynthesis

Curriculum Standards


Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 11-12 texts and topics.


Determine the central ideas or conclusions of a text; summarize complex concepts, processes, or information presented in a text by paraphrasing them in simpler but still accurate terms.


  • Before showing the video, print several photos of stoma and leaves and place them on the board.
  • Have students watch the video lesson What is Transpiration in Plants? - Definition, Rate & Process
  • Stop the video at 1:29.
  • Hold a short class discussion on the basics of the transpiration process to ensure all students understand. Use the pictures and diagrams you have posted on the board as examples if students are having a difficult time understanding. Some example discussion questions include:
    • What are the functions of guard cells?
    • What is the main purpose of stomata?
    • What does transpiration do for plants?
  • Watch the rest of the video.
  • Hold a short class discussion on the various factors that affect transpiration rates. Some example discussion questions can include:
    • How does an abundance (or absence) of light affect transpiration?
    • How do wind and/or humidity affect transpiration?
    • Would larger leaves cause for a quicker or slower rate of transpiration? Why?

To unlock this lesson you must be a Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use

Become a member and start learning now.
Become a Member  Back
What teachers are saying about
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create an account