Great learning today! Now have a go at completing these End of Lesson Quiz questions.

What is the opening of the eye called?

What happens when light hits an object?

What happens after the light is reflected off the object?

Where does the eye send signals to?

Science-How can we see objects - End of Lesson Quiz

﻿Hi, everyone, and welcome to our third science lesson. I am absolutely loving teaching you science. I hope you enjoyed the first science lesson and the second science lesson last week. And I hope you're feeling ready for a whole new lesson today. So, let's go through our slides so we all know exactly what we're supposed to be doing. Okay, so here we go. Our learning objective today is what or the key question that we're thinking about is, what is the difference between night and day? And that might seem obvious to you but we're going to learn why the night and day happen and what is the difference between them. And it's with me Miss Emms. Okay, so our agenda today, first, you should have done a start of lesson quiz. Now, that was just before this video. So, if you haven't done that, can you pause the video now and can you go back and complete your starts of lesson quiz which will help you retrieve that information that you need from your last lesson and see what you can remember? Okay, so now if you're listening, you've done your quiz, well done. Perhaps you'd already done it before. We're then going to have a demonstration about night and day. I'm going to do it and then you're going to have a go at doing it. Then we're going to do some retrieval practise about night and day. So, doing a little bit of reading to find out some key information, and then finally you're going to have a go at drawing some diag or understanding some diagrams, okay? And at the end of the lesson you will complete an end of lesson quiz to see how much from this lesson you are able to remember. So, is switched on listening really carefully. I know that you're going to work really hard. You're going to need several things in this lesson. You're going to need an exercise book or paper, you're going to need a pencil and you're going to need your science brain switch on some maximum. Switch on. Amazing. Now, there are a couple of other things that it would be helpful if you could find for the lesson, if you can't, you don't need to worry, I'm going to do it. And you can watch me. If you've got a book I'd like you to go and find a ball. And also something that is a light source. That's going to represent the sun, okay? So, I've got a lamp, so bright, isn't it? I've got a lamp. You could use a torch, or you could ask your parents or carer if you don't have a torch, if you can use the torch function on their phone, you must ask them first. Then perhaps they can help you but you should be able to find a lamp. You need to ask a parent or carer to help you with unplugging the lamp. If you need to move it, or you could go over to where that to do your demonstrations. And a ball, any ball works, anything circle actually, a tennis ball, a big bubble, an orange, an apple anything that you've got that is spherical sphere shape. Okay. Right, let's start. So, just to recap, I've got two images on the board. I would like you to pause the video and I'd like you to tell the screen or your Teddy if you're doing science with your Teddy why has Miss Emms put these two images on the screen? What do they tell you? Pause the video and explain to your screen or explain to your Teddy, off you go. Okay, well done. So, hopefully you recognised that what happens is light leaves and lights comes from a light source is emitted from a light source travels in a straight line. Remember, it's a type of way. It's travels in wave form. And it's a type of energy. It's travels in a straight line. It hits the object, it's reflected off the object or bounces off the object. And then the light goes in a straight line towards the eye, in through the pupil. And then eye send signals to the brain. And that's how we know he's seen as something. How clever of our eye how clever of our brain, our body is amazing, isn't it? Okay, let's move on to today's learning. So, night and day, before we start, can you pause the video? And can you tell your screen, what do you know about nights and what do you know about day? You go. Well done. I had some really great responses. So, I'm going to show you now. Oh, sorry team. There we go. I'm going to show you now. What happens when light comes from the sun, and what happens when it travels to the earth, and why you night and day happen. And because we know that at night-time, we can't see it. It's dark outside. We can see things because there are light sources such as lamps outside and perhaps lights on in our houses. But it is dark because we can't see the light from the sun, okay? And we know that in daytime, we can. It is light and we can see the sun. So, why? I'm going to do my best to show you, okay? So, in my demonstration, I'm going to use a lamp as the sun. I know this picture is of a torch. This one is what I'm using a lamp. You might be using either of those. Don't do it yet. And I'm using a ball to act as the earth. Hey, so I got sun and I've got the earth. I'm going to go to full screen now so you see. Okay, I am wrong. So this, it's quite a heavy ball actually. It's normally one that you used to exercise, so I'm going to do my best at holding it up. This is going to act as earth, okay? It's not perfectly spherical, but it's mostly a sphere and it's going to be my earth. This little cross and piece of blue tack I want you to imagine it, that is where our country is, okay? So this is the United Kingdom, okay? I want you to imagine that that's where we are. This is going to act as my sun. And you can see it coming if I hold it like that. You can see the light coming from the lamp. But that's the sun now, that's the sun, this is earth. Now, I'm going to put my screen down a little bit here so that you can see. So, I've got my sun here and I've got my earth here. Now, here is the country that we're in. Here's where we are on the earth. Now, what happens is the sun stays where it is, okay? It doesn't move. The earth rotates like this. So, it rotates means it spins around very slow, okay? So, the earth spins around like this. Now, when we are facing the sun, it's daytime for us, Okay? When we are facing the sun, it's daytime for us. When we face a way from the sun, it's night-time for us, because it's, we can't see the light from the sun, okay? We're going to do that again. So, I'm going to say so at the moment, it's nighttime, isn't it? Because we are over here. We're on the other side. So night-time, daytime, can you join in with me as I spin my earth, a day. Not my time yet, until you can see it. Night-time, well done. Not quite yet. And there we're, daytime. One more time say it with me. It's getting closer and closer to nighttime. There is because the sun is here and we're facing away and daytime. Wow, well done, everyone for listening so carefully. Okay, so what I would like you to do now, is I would like you good. How are you? Pause the video and you get your things that you need. You should have got more ready but maybe you need to go and get them now, you haven't got them, you can just what you can skip this part of the video. We're going to go on to the next part very soon. You have got them, even with some other objects you can have a go at doing your own science demonstration with your sun and with your earth. Pause the video now and complete your demonstration, off you go. Okay, everyone I hope you had fun. And I hope you learned lots as you were doing your demonstration. Let's go on to the next part of the lesson. Okay, so we are going to do some retrieval now. So, we're going to find some key information in a passage. It's only a short passage and I know that you're all really, really good at reading. So, I would just like you to pause the video now, and I would like you to read this passage here by yourself. Afterwards we're going to do it together. First pause and read it out loud to your screen or to your Teddy, off you go. Well done. Super. Okay, my turn, I'm going to read it so, we're really sure you can point and follow it with me. Daytime is when you can see the sun from where you are and it's light and heat can reach you. Night is when the sun is on the other side of the earth from you, and it's light and heat can't reach you. So if you have a look at the image here you can see just like we did with our demonstration the sun light rays coming towards the earth. Now, this part of the earth is in daytime because it's light and it's heat can reach the earth. This part of the earth is all in nighttime because the light and heat of the sun can't reach the earth. So well, we're in daytime or while the people who live over here are in daytime, people who live over here are in nighttime. I've got a sister and she lives in New Zealand and how our night-times are totally different to mine. So sometimes when I am in daytime and it's light where I am in London, she's in night-time and the other way round. So, we all have different day-times and night-times. Okay, we're going today to the next slide. And you're going to now read this passage to yourself. A pause and read the following passage to yourself or to your Teddy, off you go. Okay, well done. My turn now, we get stay nights because the earth spins or rotates on an imaginary line called it's axis. an imaginary line that goes all the way down the centre and different parts of the planet are facing toward the sun or away from it. It takes 24 hours for the world to turn all the way around. And we call this a day. So, for the world to do one full time, can you do one full time with your hands? It takes 24 hours and we call that a day, okay? So, it takes a day for the earth to spin once, fully on its axis. Okay, right time for some questions now I think, cause I know that you've been doing some great learning. You're going to remember some of those facts. Retrieval questions. There's two questions here I would like you to answer them below. If you need to scroll back in the video so you can see the text, if you're struggling to find the answer. Number one, how many hours in a day write down the question and write down the answer. Or if you go pause the video, do that now. Okay, and number two, when we face towards the sun, it says... when we face away from the sun, it says... Using my demonstration and the text that we read before, fill in those blanks. Pause and do that now. Okay, well done, everybody. Are you ready to correct? So how many hours in a day 24 hours tick or fixed 24 hours. And fill in the gaps, when we face towards the sun, it is daytime. When we face away from the sun, it is night time. Okay, tick or fix those answers. Or if you need some more time, hey, well done, everyone. Let's move on, you're doing such a good job. Well done. So, we're going to have a look at some diagrams now, sometimes diagrams help us to understand the concept. So we've seen it when I demonstrated we've read about it. And now we're going to see in the diagram. So, I think you can do this quite easily but it's really good practise for us to be able to label these different objects. So, you need to add labels to the diagrams below. The labels you could add a sun, earth, and moon. Instead of copying down the diagram cause that might be tricky. You might want to do that and label it. You want it? You don't have to do that. You can just write down A, B and C. This one is A, this one is B, this one is C. We know we haven't covered C. So, I wonder which one using our knowledge of the other two. I wonder what C is going to be. Pause the video and have a go at doing that now. Fantastic. Well done. Okay, let's correct it. So, A was the sun. There we go, we know there's a cheeky clue. Isn't there? There are the light rays that are coming from the sun. This is the sun. Here is the earth. And you can see it's imaginary line It's axis that the earth is spinning on. And finally see that for must've been the moon. Okay, so further along from the earth, A sun, B earth, C moon. Can you tick all fixed those three answers? Pause if you need to. Okay, let's move on to our last diagram. So, this one, you actually do have to draw it but it's not very hard and you don't have to draw all of the countries and the oceans on the earth. You just need to draw the sun. So, a large circle and a smaller circle next to the sun which is going to be your earth. And maybe you'll write sun and earth in the middle of them or top. Pause the video and do that now, please. Okay, well done. Now, what you need to do is you need to shade. So, using a pencil colour in lightly but diagram to show which side of the earth is in night time. If this is the sun which side of the earth is a nighttime? Shade the diagram to show which side of the earth is in nighttime. Pause and do that now. Amazing, well done. Okay, let's see if you've got it. So, it's this side, isn't it? This half, because this half can see the light and heat from the sun can reach the earth. The heat can't reach this side of the earth. So, this side is a darkness. This light is a night time. If you need to change that and change that now, off you go pause if you need to, if not you can give tick. Okie dokie, well done. We're starting the day. You're doing some really great science learning and learning loads. So, well done. Now, our last question, and you really needs you to think really hard. So you think he puts it on, right? How would life on earth change if there was no sun? There, that's hard to imagine. Isn't it? I want you to think about how life on earth would change if there was no sun. And what you're going to do is you're just going to draw a picture to show your ideas. I've got a box. You could draw yours in a box, if you'd like to, or you can just draw them on your sheet where you've been doing your learning. How would life on earth change if there was no sun. So, you can draw a picture now to show your ideas off you go pause the video now. I wonder what you came up with. I'm sure there were lots of different ideas from all across the country. These are some of mine. It would be no light, okay? There would be no light. It would be really hard for us to see anything we'd have to use light sources like lamps and lights but there would be no light from the sun. This would make it impossible for plants to grow. I wonder if you got that one as well, if not you can add it in now. And we would be in darkness. That would be really strange. Wouldn't it? If you want to add any of those pictures you can add them now to your box. Pause if you're going to do that. Okay, fantastic, well done, everybody. Now, I'm going to go on to the last side in a second but just reminder that after this video, you need to go with your end of lesson quiz to see how much you've learned from this lesson. I'm sure you're all going to do really, really well. You've done an amazing job. If you would like to share what you've learned you can ask a parent or carer to share your work on Twitter @OakNational with #LearnWithOak or you can go and tell somebody in your household about it, show them your acting work or keep it safe and just part of it all to yourself. Okay, everybody, great science learning today and I really look forward to our next lesson. Bye, everybody.

Here is your End of Lesson Quiz Year 2! Let's see what you can remember from the lesson.

You can see the sun when it is night-time. True or false?

How many hours are there in one day?

The earth rotates on an imaginary line called an ...

When it is our daytime, our part of the planet is facing ...

What is the difference between night and day?

How the spin of the Earth creates night and day

In this lesson, we will be learning about the difference between night and day. You will find out how the earth turns and why night and day happen.

Science

Y3 Science

Key Stage 2

Year 3

Miss

Light & dark

UNIT

What is light?

How can we see objects?

Which materials are reflective?

How are shadows formed?

How can you change the size of a shadow?

Opaque objects let most light rays pass through them. True or false?

If you can see through an object, it is ____________.

Shadows are made when...

Tick the transparent object.

When you move an object closer to the light source, the shadow becomes __________.

Reflective materials are...

Tick the object which is made of a non-reflective material.

Lesson overview:What is the difference between night and day?

Core Content

Light & dark: