Biomass

This lesson introduces the concept of biomass and looks at how energy is transferred between organisms in a food chain.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.Revision: how can you make sure quadrat placing is random?

1/6

Q2.What is a hypothesis?

2/6

Q3.What is described as "the thing you measure in an experiment"?

3/6

Q4.Revision: what is a population?

4/6

Q5.What is the mode of the following numbers? 4, 8, 2, 9, 4, 1, 7?

5/6

Q6.Revision: select the 3 abiotic factors that animals compete for.

Select three (3) boxes

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.Revision: how can you make sure quadrat placing is random?

1/6

Q2.What is a hypothesis?

2/6

Q3.What is described as "the thing you measure in an experiment"?

3/6

Q4.Revision: what is a population?

4/6

Q5.What is the mode of the following numbers? 4, 8, 2, 9, 4, 1, 7?

5/6

Q6.Revision: select the 3 abiotic factors that animals compete for.

Select three (3) boxes

6/6

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Biomass

This quiz will check your knowledge of the content covered in the biomass lesson and also help you to revise previous ecology content.

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.What type of organism is always found in trophic level 1?

1/6

Q2.Approximately how much of the suns energy is converted into biomass by producers?

2/6

Q3.Revision: what do the arrows in a food chain show us?

3/6

Q4.What is described as the mass of living organisms?

4/6

Q5.Revision: select the 3 abiotic factors from the list below:

Select three (3) boxes

5/6

Q6.In a food chain 200 kg of wheat is fed on by 18 kg of mice which in turn are eaten by 1kg of hawk. What is the percentage energy transferred from the first trophic level to the third?

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Biomass

This quiz will check your knowledge of the content covered in the biomass lesson and also help you to revise previous ecology content.

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.What type of organism is always found in trophic level 1?

1/6

Q2.Approximately how much of the suns energy is converted into biomass by producers?

2/6

Q3.Revision: what do the arrows in a food chain show us?

3/6

Q4.What is described as the mass of living organisms?

4/6

Q5.Revision: select the 3 abiotic factors from the list below:

Select three (3) boxes

5/6

Q6.In a food chain 200 kg of wheat is fed on by 18 kg of mice which in turn are eaten by 1kg of hawk. What is the percentage energy transferred from the first trophic level to the third?

6/6

Lesson summary: Biomass

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