How do we construct a food chain?

Key Stage 2

Science

Ecosystems

When a living organism eats food in order to obtain energy, it is in the role of producer or consumer?

If a human is lying in the sun, can they carry out photosynthesis?

﻿Hello everybody. Welcome to your 4th lesson on ecosystems with me, Miss Roberts. I am so happy to be back with you for another lesson ecosystems. Because I love this topic, it's one of my favourites. So I've got Lenny the Lion here and he's also exciting for our 4th lesson. Because we're going to be doing some more drawing today. We're going to be drawing some food chains. So I've got him by my screen to help me with my learning. If you want to get your favourite teddy, you can do so. You'll also need a pencil or pen, a ruler, and a notebook. So pause the video and go and get the things that you need now, so that you're ready to start. Off you go. Okay, I think we are ready. So just as a quick recap before we do our star words today. Is this a producer or a consumer? Can you read what it says on the screen? Plants make their energy from sunlight. That is a, tell the screen. Producer, well done. And what about the next one. Can you read it to yourself? Is that a producer or a consumer. Humans get their energy from food. Well done, it's a consumer. Good job team, you've remembered that so well. Okay, so what are we doing in today's lesson? Let's find out. We're going to do our star words. Then we're going to learn about what is a food chain. Then we're going to learn about how food chains are drawn. Then we'll draw our own. And then I have a task for you. So I hope you're ready. I am extremely ready for my favourite part of the lesson. Which is our star words. So if you have not been with me, then I'm sure you'll pick this up really quickly. So it goes my turn, then your turn. Star words, star words, star words. Well done, okay. The first word is energy transfer, okay? Energy transfer. Can you do the same actions with me? One, two, three. Energy transfer. And energy is transferred in food chains. And we're going to learn about that today. The next word is producer. Your turn. Producer, your turn. The next word is food chain. The next word is food chain. Well done. The next word is consumer. Your turn. We learned about that one last lesson. The next word is primary consumer. And it's really important that you put one finger up because it's the first consumer. So can you do that with me? Primary consumer. Your turn. Well done. And the last one is tertiary. Now I know that we've missed out this one, which is two. Because that's secondary. And do you know the word second or secondary? So I'm just giving you words that might be new. So this word is tertiary and that means third. So the third one in the food chain is the tertiary consumer. Can you tell your screen? Tertiary consumer, your turn. Well done. So the third consumer in a food chain is the tertiary consumer. But don't worry, we're going to be looking at that today. So now that we've got those in our minds, hold on to them and I'm sure you'll see them during the lesson. So what is a food chain? Some of you might already know what a food chain is. If you do already, can you write it down for me on your piece of paper? And then at the end of the lesson, see if you are right. A food chain shows how plants and animals get their energy. A food chain always starts with a producer. This is an organism that makes its own food. Most food chains start with a green plant. Because plants can make their own food by photosynthesis. A living thing that eats other plants and animals is called a consumer. And that's what you have next in your food chain. So in this food chain so far, my producer is the grass. My producer is the grass. Then which animal can you see that eats grass? Well done, a snail. And this is my consumer because it consumes the grass. Then I have a frog. And the frog eats the snails. So the energy goes from the grass, to the snail, to the frog. Because the frog eats the snail. Is the frog a producer or a consumer? Can you tell your screen? Well done, it's a consumer. Because it gets its energy from the snail. And lastly, I then have an owl. And the owl is the tertiary consumer. The owl is the tertiary consumer. Because it eats the frog and it's the third consumer. So in the food chain I showed you, the arrows represent the transfer of energy. What do the arrows represent in the food chain? The transfer of energy, well done. So let's just go back to our food chain for a moment. The first producer always goes on the left hand side. And you can see the grass is on the left hand side. This is then followed by the consumers in order that they are eaten. So on your screen, which organism is the producer? Well done, it's the grass. The grass is the producer. Which organism eats the grass? The snail. And the snail is my first consumer. What was our star word that had this action? Can you tell your screen? Well done, primary consumer. Can you tell your screen? Primary consumer. Well done. Which organism eats the snail? It's the frog, well done. And that's our second consumer. So we call it our secondary consumer. Can you do that with the actions? The secondary consumer. Which animal then eats the frog? Good job, it's the owl. And this is our third consumer. And this is our tertiary consumer. What is the owl? The tertiary consumer. Now some of you might think, "Hold on a second. Why is the owl not the fourth consumer?" Well, if you have a look at the screen carefully, the grass is a producer. So the first consumer is the snail. So then we only have one producer and three consumers. So that's why. I have another quick question for you. Does the frog eat the grass? No, not in this food chain. Where does the frog get its energy from? From the snail, well done. So the energy is passed from the snail to the frog. Does the owl eat the snail? No, it doesn't. Where does the owl get its energy from? In this food chain, it gets it from the frog. So what I'd now like you to do, is label the food chain using the titles at the top of your screen. Pause the video and write them down in the correct order based on the food chain we've looked at. If you want to, you can also tell your screen if you've not got anything to write with right now. Pause the video and have a go. Well done. Okay, let's see if are correct. So the grass was a producer, the snail was the primary consumer, the frog is the secondary consumer, and the owl is the tertiary consumer. Wow, I'm going to give you an awesome cheer. Because you're working so hard this lesson already. And there are lots of new pieces of information that you're picking up really quickly. So well done. Now that we know what a food chain actually is. How are they drawn? So I'm going to show you another example before we look at drawing our own. This is a food chain and it's got a plant followed by a mouse, followed by a snake, followed by a hawk. I would like you to add in the titles at the top of your screen on to the correct part of the food chain. Pause the video and have a go now. Okay, pause the video if you need more time to add those labels in. I'm going to give you the answers. Are you ready? Here they are. Give yourself a tick if you wrote them down and you got them all correct. The producer is the plant. Why is the producer the plant? Where does it get its energy from? Well done, it gets it from the Sun. It produces its own energy. Then the energy is transferred to the mouse. Which is the primary consumer. Then the energy is transferred to the snake, which is the secondary consumer. What happens last? What happens between the snake and the hawk? Can you tell your screen? Well done, the energy is transferred from the snake to the hawk. Which is the tertiary consumer. Well done. Just very quickly, I'd like to pause there. With your finger, being very careful not to hurt your screen, I would like you to point to the producer. Now point to the secondary consumer. Now point to the tertiary consumer. Are you touching the hawk? Well done. Now point to the primary consumer. Well done, I hope you're pointing to the mouse. Good job team. In the following food chain, I have made a mistake. Where have I made a mistake? Pause the video and see if you can find my mistake now. Well done, I hope you spotted it. The arrows are the wrong way round. The arrows are pointing towards the grass. And that means that the energy transfer is incorrect. We always show the energy transfer going from left to right to show that the energy is travelling in the correct direction. So I would now like you to have a look at this food chain. You've got seaweed followed by crabs, followed by dolphins, followed by a shark. I would like to add on the labels that we had before to each stage of this food chain. If you want to draw and have a go at the images, you can do. If not, you can just tell your screen what the titles for each stage of this food chain would be. Pause the video and have a go now. Well done everyone. Pause the video if you need more time. 'Cause I'm going to go through the answers. And here we go. The seaweed was the producer because it produces its own energy. The energy is then transferred to the crab, well done. Which is the primary consumer. The energy is transferred from the crab to the dolphins. Which is the secondary consumer. The shark then eats the dolphins. So the energy is transferred from the dolphins to the shark. And the shark is the tertiary consumer. IF you got those right and you wrote them down, you can give yourself a tick. If you told your screen, give yourself a pat on the back. Okay, I have a task for you. An organism gets its what by making its own food is called a something. And the second sentence. An organism that gets its something from eating other animals is called a what. Pause the video and complete those sentences in your notebook, filling in the blanks now. Okay, pause the video if you've not finished writing them. And go back if you need to check in the video for the answers. An organism that gets its energy by making its own food is called a producer. And an organism that gets its energy from eating other animals is called a consumer. Well done, everyone. Give yourself a big pat on the back. You are working so hard. So now, let's think about drawing a food chain. Before we do that, I'm going to ask you some quick questions that are going to help us draw a food chain. Can organisms be both a consumer and a herbivore? Now remember, what do herbivores eat? Well done, herbivores only eat plants. So what do you think the answer to this question is? Have a think. I'm going to put my thinking glasses on. Hmm, this is a scientific question. Yes, it can. Because consumers get their energy from other organisms. Herbivores only eat plants. So it could be a animal that is a herbivore. Like a panda that will also be a consumer. Can an organism be both a producer and a predator? Hmm, so producer produces, are like plants, they produce their own energy. Predators hunt their prey for their animals that they want to eat, hmm. So no, predators are animals that hunt their food. And producers make their energy from sunlight. Therefore, producers can only be plants. Good thinking, team. Right, one more quick question. Can an organism be both prey and a predator? So can it be eaten by predators? Can it also hunt? Hmm, have a think. Can an animal both hunt and be hunted? Yes, it can. Some animals hunt other animals for food. But some of these animals are also hunted by animals higher up in the food chain. For example, a fox likes to hunt birds and frogs. But they'd also be eaten by bears and cougars. So some animals, some organisms can be both prey and a predator. Okay wow, good thinking, team. That's going to really help us when we think about drawing our food chains. So have a look at the image on the screen. What organisms can you see? Can you list as many as you can? I'm going to give you 10 seconds. Ready, steady, go. 10, nine, eight. Keep going, seven, six, five, four. Can you name three more? Three, two, one. And stop there. Wowee, there was so many to choose from. I got butterfly, snakes, frogs, flowers, leopards, monkeys, and plants. And trees. I'm sure you probably got more than I did. Okay, so what we're going to do is we're going to use that information to draw our own food chain. You need to make sure that you've got a pencil and a notebook here ready. So that you can draw your food chain. What I'm now going to do, is I'm going to turn full screen, so that I can show you my visualizer. So. On my page, I'm going to draw a food chain using some of the organisms that we just saw in that image. I saw a flower. And I know that flowers are eaten by some insects that I've also seen. So I'm going to draw a diagram with just the key information. This is my flower. Now is this my producer or my consumer? Can you tell your screen? Well done, this is my producer because it produces its own food. So I'm also going to label it producer. Then I need to draw my arrow. So I'm going to draw it always to the right. With an arrow on the end. Pause the video and I'd like you to the same. Draw your flower, label it, and draw your arrow. Off you go. Well done, I'm going to carry on now. And I know that butterflies eat flowers. So I'm going to put my butterfly like this. Now I'm not going to give it any extra detail 'cause I'm just drawing a diagram. So I'm just giving the key information. So this is my butterfly. And I know that this is transferring... Sorry, it's getting it's energy from the flower. By eating it. So this is a consumer. I also know that this is the first consumer in my food chain. So it's called my primary consumer. Pause the video and draw your first primary consumer on your food chain now. Okay, I now need to show the transfer of energy to the next organism in my food chain. I'm going to draw an arrow to the right. And make sure that it's nice and neat. Now I know that frogs eat butterflies. Now frogs are quite hard to draw and I'm going to give it my best shot. So I'm going to draw a frog. Let me just go back and have a look at my practise one, hang on. Oh yes, I remember. So my frog eats the butterflies and that's why the energy is transferred. Now I'm not very good at drawing, as you can see. But I hope you'll be very kind to my frog drawing. Because it's even worse than my practise. And I did practise it, I promise. So this is my frog. And this is the second consumer in my food chain. So I've had my primary consumer. This is the second consumer. So this is my, tell me what I need to write here. Well done, it's my secondary consumer. Okay. Now, I need to show the final transfer of energy to my final consumer. What do I need to draw here then, team? Can you tell me? Well done, an arrow. An arrow to the right or an arrow to the left? Good job, everyone. You've been listening so hard. I need to show the transfer of energy from left to right. And I know that frogs get eaten by snakes. So I'm going to draw, hopefully. If I concentrate just for a moment. A snake. I know that it has two eyes on the front. And I know that it has a little slither at the front. So this is my third consumer. So what do I need to label here, team? Can you tell your screen? Well done, tertiary. T-E-R-T-I-A-R-Y. Tertiary consumer. 'Cause it's the third consumer in my food chain. What I'd like you to do, is now draw a food chain just like mine. Make sure you've got your titles on. Make sure you've got your diagrams and make sure you've got your arrows going from left to right to show the transfer of energy. Pause the video and have a go now. Okay, so now that we've done that, let me just turn my visualizer off. You can see me again. There we go. Now I have a task for you. You can write this out in your notebook or you can tell your screen. What I'd like you to do is match up the definitions on the left with... Sorry, the titles on the left with the definitions on the right. This is a recap of today and also the last lesson that you did. Which was lesson three is this unit. So pause the video and write out your answers now. Connect up the correct title with the correct definition. Well done, everyone. Let's see if you are correct. So I want you to tell me. Omnivore, what is an omnivore? Well done, an animal that eats both plants and animals. That could also say organisms. Now a consumer, what's a consumer? Tell your screen, what did you get? Well done, an organism that gets its energy from eating other organisms. Because it consumes. What about a carnivore? Do you remember that from last lesson on the unit? They only eat... Other animals, well done. So animal that only eats other animals. Often called a meat eater. What about a producer? What does it do, it produces it's own food. Well done. So an organism that gets it energy from making its own food. And lastly, a herbivore. That must be an animal that eats only plants. Team, you have done so well today! I am so impressed with your learning. And Lenny the Lion here is also really impressed with your food chain. If you want to have a go, you could go back to that rainforest diagram. And you could see, if you could construct a food chain from other parts. So other organisms in the rain- Well done, everyone. And see you next lesson. Bye.

How do we construct a food chain?

How do we construct a food chain?

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