Starter Activity: On a show me board draw a mind-map or list key words about the following: “All living things grow and reproduce. What do living things.

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Presentation transcript:

Starter Activity: On a show me board draw a mind-map or list key words about the following: “All living things grow and reproduce. What do living things need to do this?”

Nitrogen in Ecosystems Learning Intention: Explain the importance of nitrogen in ecosystems and describe the role of bacteria. Success Criteria: Describe the importance of nitrogen to living things. State the different forms of nitrogen found in an ecosystem. Describe the recycling of nitrogen in an ecosystem. Explain the role of bacteria in the nitrogen cycle.

The Nitrogen Cycle

What is The Nitrogen Cycle? Your task… 1.Watch the short video clip: Glow Video Clip: The Nitrogen Cycle 2. Write down any key words that relate to the following points on a show me board: a)What is nitrogen part of? b)Why is nitrogen important? c)Where is nitrogen found?

Why is nitrogen so important? Nitrogen is essential for growth because it is used by plants and animals to make proteins. Nitrogen makes up about 78% of the atmosphere. However, nitrogen deficiency is the most common cause of poor plant growth. How is atmospheric nitrogen changed into a useable form? Why are plants unable to use the nitrogen straight from the air? Nitrogen gas (N 2 ) is unreactive and is not easily converted into other compounds. Most plants can only take up nitrogen in the form of ammonia or nitrate.

What is the nitrogen cycle?

Labelling the nitrogen cycle

The Nitrogen Cycle Your tasks… 1.Read the information sheet. 2.Discuss the information with your partner & note key ideas on your show me board. 3.Follow the instructions on the first card in your envelope.

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The Nitrogen Cycle You can copy the diagram above and add any extra information from your nitrogen cycle task cards.

The Importance of Nitrogen Nitrogen is very important to all living organisms. Living organisms need nitrogen to make: amino acids, proteins (including enzymes) nucleic acids.

Nitrogen in Ecosystems Learning Intention: Explain the importance of nitrogen in ecosystems and describe the role of bacteria. Success Criteria: Describe the importance of nitrogen to living things. State the different forms of nitrogen found in an ecosystem. Describe the recycling of nitrogen in an ecosystem. Explain the role of bacteria in the nitrogen cycle.