Impacts on Food Webs

This lesson looks at how changes in the environment can affect different organisms within a food web, including the process of bioaccumulation.

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!

Q1.What is decompostion?

1/8

Q2.What is the role of the detritivores?

2/8

Q3.Which of the following is an example of a microbe?

3/8

Q4.Which factor does not affect the rate of decay?

4/8

Q5.Which factor will kill the decomposers if it's too high?

5/8

Q6.How does volume of water affect rate of decomposition?

6/8

Q7.Why do we wrap our food in cling film?

7/8

Q8.Which of the following statements best explains the design of a compost bin?

8/8

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!

Q1.What is decompostion?

1/8

Q2.What is the role of the detritivores?

2/8

Q3.Which of the following is an example of a microbe?

3/8

Q4.Which factor does not affect the rate of decay?

4/8

Q5.Which factor will kill the decomposers if it's too high?

5/8

Q6.How does volume of water affect rate of decomposition?

6/8

Q7.Why do we wrap our food in cling film?

7/8

Q8.Which of the following statements best explains the design of a compost bin?

8/8

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:

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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:

Impacts on Food Webs

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the correct definition of interdependence?

1/8

Q2.Which of the following is an example of interdependence?

2/8

Q3.What is an abiotic factor?

3/8

Q4.Which of the following is a biotic factor?

4/8

Q5.Which of the following is NOT a human factor that can affect the population of an organism?

5/8

Q6.Foxes eat partridges. Partridges feed mainly on insects and wild plants (weeds). Some farmers spray their crops with chemicals to kill insects and weeds. How would this affect the number of foxes? Explain why.

6/8

Q7.Farmers spray chemicals on crops to kill unwanted weeds. What are these chemicals called?

7/8

Q8.The chemical in the spray might also....

8/8

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:

Impacts on Food Webs

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is the correct definition of interdependence?

1/8

Q2.Which of the following is an example of interdependence?

2/8

Q3.What is an abiotic factor?

3/8

Q4.Which of the following is a biotic factor?

4/8

Q5.Which of the following is NOT a human factor that can affect the population of an organism?

5/8

Q6.Foxes eat partridges. Partridges feed mainly on insects and wild plants (weeds). Some farmers spray their crops with chemicals to kill insects and weeds. How would this affect the number of foxes? Explain why.

6/8

Q7.Farmers spray chemicals on crops to kill unwanted weeds. What are these chemicals called?

7/8

Q8.The chemical in the spray might also....

8/8

Lesson summary: Impacts on Food Webs

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Time to move!

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For 5 mins...

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