Lesson video

Hi, everyone.

My name is Mrs Mehrin and I'm really looking forward to learning all about day length in summer with you.

Let's begin.

Welcome to today's lesson from the unit seasonal changes in spring and summer.

Your learning outcome today is I can observe what happens to day length in summer.

Now we are going to be touching upon some of your previous learning all about summer and the weather and when summer occurs during the year.

Now, I know that learning can sometimes be a little bit challenging, but that's okay because it just means that we are going to learn lots of fab new things and we are going to work really hard as well.

Let's begin.

Now here are your keywords for today.

We're going to do a my turn, your turn.

Let's begin.

My turn, light, your turn.

My turn season, your turn.

My turn, summer, your turn.

My turn, day length, your turn.

My turn, time, your turn.

Now you'll also notice that there are the definitions for those keywords as well, but you don't need to worry about those because I am going to be referring to them throughout today's lesson.

Now, our lesson today is split into two parts.

Let's begin with the first one, day length in summer.

Now Aisha and Alex are talking about light and dark.

And Aisha says, in the daytime, I can see the Sun in the sky.

I know it is daytime because the Sun gives us light.

Alex says, at night it is dark and I cannot see the Sun in the sky.

Does that mean the Sun goes away at night? What do you think? Now just a quick disclaimer as well, don't ever look directly at the Sun.

So what do you think about what Aisha and Alex are talking about? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done.

So when it's light outside it means that the part of Earth where we live is being lit up by the Sun, even if the Sun is hidden behind clouds like on a rainy day.

And the light helps us to see everything around us, and that's why it's easier for us to see during the daytime than at nighttime when it becomes really dark because there's no light there for us to be able to see things clearly unless we have streetlights and things like that.

However, the Sun is a natural light and the Earth is being lit up by the Sun during the daytime.

Now when it's dark outside, the Sun is still shining but it's shining on another part of the Earth, just not the part where we live.

And we call this night time.

This means there is no light or less light for us to see things.

And when it's dark outside, we often switch on lights inside buildings, in our cars, or even use a night light to help us to see.

Now, it's the season of summer and Laura is at the playground after school and she says, I love summer because I can go to the playground on my way home from school.

In the winter it's dark so I can't play outside with my friends.

Now have you ever noticed this? I'll give you five seconds just to have a really good think.

Do you notice that in summer you can go and play outside because it's still light outside after school, but in winter it gets dark quickly? So you may have noticed this as well.

Now the amount of light we see each day changes in the different seasons throughout the year.

So here we have a dark winter evening, but in summer at exactly the same time it's light outside.

Now, true or false? The amount of light we see during the day changes in different seasons.

Is that true or false? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done, the answer is true.

Now I think this because, A, we have more light and longer days in winter, or B, we have more light and longer days in summer.

Again, I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done, it's B.

We have more light and longer days in summer.

Now Laura says, I have observed that it is light for more time in the season of summer.

And Andeep says, this means that the days are longer in summer.

Now in the season of summer, the day length is what? A, longer, B, shorter, or C, colder? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done, the answer is A, longer.

Now Andeep says, I like it when the days are shorter in winter because I like to use my new telescope to look at the stars before I go to bed.

I can't do that in summer because there is more daylight as the days are longer.

So Andeep probably finds that he has to go to bed even when the sun is still shining outside in summer because I know where I am it's summer now and even at nine o'clock in the evening it's still really bright outside.

Now, what happens in summer? A, it's darker for more hours every day, B, it's darker for less hours every day, or C, it's always dark.

What do you think? I'll give you five seconds to think about your answer.

Off you go.

The answer is B, it's darker for less hours every day.

Now here is your first task.

It says, tell a partner which activities would be more difficult to do after school in summer when it's light.

So would it be more difficult to play outdoors if it's light? Would it be more difficult to go for a moonlit walk if it's light? Would it be more difficult to play with a torch? Would it be more difficult to cycle? Would it be more difficult to sleep? Or would it be more difficult to fly a kite? So which of those activities would be more difficult? I'd like you to tell your partner now, so you need to pause the video here and then have a go at this activity.

Off you go.

Fabulous, well done.

So Andeep says, I would easily do the playing outdoors, cycling, and flying a kite when it's light after school in summer.

Alex says, it would be more difficult to do the activities that it needs to be dark for, like playing with a torch, going for a moonlit walk, and going to sleep when it's light after school in summer.

Now I know that I find it really difficult to fall asleep during summer because it's still bright outside.

However, when it's winter, I find that I like to go to bed even earlier because it's dark so I find it very, very easy to fall asleep.

Now we are on to the second part of our learning today which is observing day length.

Now Laura goes to bed at the same time each evening.

She observes if it's light or dark.

And Laura says, when I go to bed in the season of winter at the same time, I observe that it's dark outside.

It's easy to go to sleep because it's quiet and dark.

And Laura says, in the season of summer, I observe that it is still light when I go to bed.

Even when I close my curtains, it's still light in my bedroom.

I can hear birds chirping outside and older children still playing.

Now, Laura wants to find out more about day length in different seasons.

How do you think Laura could investigate this? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done.

So Laura will use her observing skills to investigate day length.

She says, I will record the time when it gets dark each day.

I think it will get dark later when it's summer.

Now what should Laura use to tell the time? I'll give you five seconds to think about your answer.

Fantastic, well done.

So Laura needs a clock so that she knows what time it is when it gets dark each day.

So we've got a wrist watch, a digital clock on the phone, or a wall clock.

So you can use any of these to know what time it is when it gets dark each day.

Now, can you tell the time using a clock? And if you can, which one of them do you find easiest? Do you find it easiest to read a digital clock or a clock on the wall or a wrist watch? I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done.

Now I find it much easier to read a digital clock.

Now which skills help us to investigate day length? Is it A, observing, B, grouping, or C, naming? Again, I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done, the answer is observing so looking really closely at something is observing.

Now, what can we use to measure how long a day is in different seasons? Is it A, a thermometer, B, a rain gauge, or C, a clock? So which of those three items would I use to measure how long a day is in different seasons? Okay, I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done, the answer would be a clock.

Now a thermometer, remember, is to measure how hot or cold it is, and a rain gauge measures how much rainfall you might have.

Now Laura's sister helps Laura to tell the time using a clock and Laura's sister says, this clock shows seven o'clock.

The short hand is pointing at the seven and the long hand is pointing at the 12 which means it's seven o'clock.

Laura's sister says, this clock shows half past seven.

The long hand is pointing at the six for half past and the short hand is past the seven but hasn't yet reached the eight, so it's half past seven.

Now Laura and her sister record the time it gets dark in different months during summer.

In June, it's nearly half past nine before it starts to get dark.

In July it's nine o'clock and in August it's just before eight o'clock.

And Laura says it gets darker later in June.

This means that the day length in June is the longest.

Now Laura says, I wonder, is there a day in summer when it gets dark at the latest time? And Laura's sister says, yes.

June 21st is usually the longest day of the year in the UK.

And June 21st is the longest day, which means we have the most amount of daylight on that day.

Aisha says, on 21st June I observed that it is still light when I go to bed.

And Alex says, on 21st June I observed that it is light for a long time.

I was fast asleep by the time it got dark.

Now, let's do a quick check in of your learning and it says, when is the longest day in the UK? Is it A, 21st June, B, 21st December, or C, 21st March? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done, the answer is A, 21st June.

Now here is your second task for today and it says, how do you know when it's summer? And Jun says, what can we observe that tells us if we are in the season of summer? What kind of things do you like to do in summer? And Izzy says, what kind of weather do we usually get in summer? What happens to the length of the days? And what have you observed in the season of summer? So I'd like you to pause the video here and have a go at answering those questions.

Off you go.

Fabulous, well done.

So Jun says, I can see lots of brightly coloured flowers.

Fruit is growing on some trees and plants such as strawberries, which I love to eat.

I like playing outside after school on my skateboard.

Izzy says, the weather is often warm and sunny in summer.

Sometimes it is cool, cloudy or rainy.

It is light when I go to bed, so I think the days are getting longer.

Now what else have you observed in the season of summer? I notice all the flowers that are in bloom during the summer and I always notice how warm it is as well, just like Izzy.

And some of my favourite fruit grows in summer as well, things like strawberries and watermelon and tomatoes.

Now, Izzy uses information about the time it gets light and dark from observations in winter and in summer.

And Izzy says, in December, it starts to get light at eight o'clock in the morning and it gets dark at four o'clock in the evening.

In July, it starts to get light at five o'clock in the morning and it gets dark at nine o'clock at night.

So here it says use Izzy's information to finish her pictograph to show the difference in day length during winter and summer.

So she's done winter, so now you need to complete this to show the day difference between winter and summer.

So I'd like you to pause the video here and have a go at finishing off the summer section.

Off you go.

Fabulous, well done.

So, wow, you can really see just how long the day is in summer.

Now we are on to the summary of your learning today.

The amount of light we see during the day changes throughout the year.

Day length is longer in the season of summer and this means that it is darker later.

A clock can be used to help record what time it becomes dark each evening.

You have worked really hard today and learnt lots of great new things.

I'm so proud of your hard work and dedication.

Well done.