# Lesson video

In progress...

Hi everyone, I'm Miss Harris, and welcome back to another science lesson, where we're learning about the seasons and the weather.

Today, we are focusing on ta ta ta this question, this question which is how can you measure rainfall? Have a think, how can you measure rainfall? How can we measure the amount of rain which has fallen from the sky? I know.

You can go outside and catch it like this.

No, that might be silly.

Hmm, you can get a bucket and go outside and catch it in the bucket.

No.

What about even if you're sleeping and suddenly you hear the rain, you wake up, run outside and catch it in your bucket.

No, that'd be really silly, wouldn't it? I'm sure there's a really scientific way that we can measure the amount of rain that falls outside.

We're going to find out.

So in today's lesson, you are going to need an exercise book or a piece of paper, a pencil or coloured pencil so that you can do your marking, and your brain.

If you don't have those things, go and get them now.

Okay.

On our 100% sheet today, we are focusing on these sections.

We are looking specifically at the weather rain, and we are recapping how the trees change across the seasons.

Let's recap what a scientist is.

So scientist is a person who studies the, can you remember? So it's a person who studies the world around us including the living and nonliving things.

Great job.

Let's do our star words for today.

Can you stand up wherever you are and you're going to copy my actions.

Rain.

Rain.

Good.

Change.

Measure.

Gauge.

Wet.

Great job.

Sit back down in three, in two, in one.

You're so fast, well done.

Okay.

Can you remember what words we use to describe the trees in each season? You can see it.

I have got the trees.

What word did we use to describe each tree when it is a different season? So first we've got this tree.

Here, this one.

What do we use to describe trees in the spring time, when they've got new leaves growing and new spring plants are growing? We describe it as fff, flourishing, well done.

What about in the summer, when the trees are full of leaves and they're really green? They are really ba ba ba, bushy, well done.

What about in the autumn, when the leaves turn a different colour and they fall off the trees? We described them as chi chi chi, changing, well done.

And then in the winter when there are no leaves on the trees, we described as ba ba ba, bare, well done.

So flourishing, bushy, changing, and bare.

Now is the time, we are going to observe the weather outside.

So you are going to draw what you can see.

Pause the video and have a go at that now.

Great job.

We now going to write a sentence describing the weather that we have just drawn.

So we've got our star words here to help us with our spelling.

So my sentence I wrote was, Today is hmm.

So you're going write what day of the week it is.

Today is hmm, the weather is winner is windy and cloudy.

But where you are, it might not be windy and cloudy.

So look really carefully at what two words you're going to choose to describe the weather outside.

Pause the video and have a go at that now.

Well done.

It says, Which weather would cause the ground to become wet? Take 10 seconds to think about that.

Which weather would cause the ground to become wet.

10 seconds thinking time.

Have you got an answer? Great.

So I think that the weather would be hailing, that could cause the ground to become wet.

Rain and snow.

All of those weathers cause the ground to become wet.

And we've had quite a lot of showers recently because in the spring we have a lot of sun and rain, sunshine and rain.

Have a window to see the rain pouring down the glass? You have and seeing the little droplets.

Maybe you've seen them when you're in the car or on the bus.

Sometimes you can see the rain pouring down the side of the window.

And sometimes we can have big puddles when it's rained a lot, it's been really heavy rain.

Sometimes we have really small puddles when the rain has been quite light.

Now this week, we are going to be measuring the amount of rain that can fall in one week.

How many weeks? How many weeks? Good job, one week.

So that means we're going to look at the clouds and we are going to make a special type of rain measuring contraption called a rain gauge.

And it's going to tell us how much rain has fallen across that week.

So to do this, you are going to meet a plastic bottle, a black marker pen or any marker pen if you don't have a black one, some scissors and maybe an adult to help you with the scissors, and a ruler.

I'm going to show you how to make the rain gauge first and then you are going to make it at the end, okay? So whenever you to make a rain gauge using a water bottle, which will help the liquid fall through the top of the bottle and collect in the bottom where we can measure it easily.

Hmm Miss Harris, what is a liquid? Can you think of an example of a liquid? So a liquid is something that can flow easily and it takes the shape of its container.

So water is an example of a liquid.

It is a liquid, it's something that can flow easily.

It can? And it takes the shape of its container.

It? A liquid is something that can flow easily.

Your turn, a liquid is something that can easily.

Great job.

Let's take a look at some examples.

So here I have got some glue.

You might have some glue at school that you've used to glue things together in art.

We then go to a plastic bottle of water.

We then got a cup of orange juice and some milk.

These are some examples to show you that a liquid is something that can flow easily and it takes the shape of its container.

But Miss Harris I don't know what that means.

I am going to show you what that means when it takes the shape of its container.

Here I have a glass of water, you can see here.

This is my glass of water.

My glass is a funny shape, it's really round and you can see that the water is the shape of the glass.

But here I've got another glass, which is a tall glass.

If I pour the water from this glass into this one, the water will become this total shape like this cup.

Should we have a look, you ready? Let me hold it on the handle so you can see.

Ready? Is the water now a tools shape? Yeah, you're right.

It has taken the shape of the cup so now you can see it's a taller shape.

What's about if I pour it back? Is it still going to be tall if I pour it back into this cup? Let's have a look.

Let's try not to spill it.

Is the water now a tall shape? No, you're right.

It's a round shape like this cup is.

Fantastic.

Can you always drink liquids? Can you drink all types of liquids? Because I could drink this water.

Can you drink all liquids? The answer is no.

You cannot drink all liquids because sometimes the liquid can be, so you can't always drink liquids because it could be poison.

It could be poisonous and it could harm your insides.

So not all things that are liquid you can drink because I gave you some examples there of milk and orange juice and water, but you cannot drink all liquid.

You never drink something that you're unsure of, always ask an adult first.

So if they've given it to you like this and the cup, remember always ask what it is.

Now it's time for you to help me get ready for my experiment.

I need all of my safety wear.

Can you help me put this on? You can? Great.

You are going to need to say safety first because I need all of these things to keep me safe.

Are you ready? Safety first, you're going to say? And hopefully my lab coat will appear.

Great, I think we're definitely ready.

My lab coat is going appear in three, in two, in one, say it.

How do you do that? How do you put my lab coats on like that? Gosh, you are so magical.

Now let's have a look at our experiment for this week.

To make your rain gauge, these other materials that you will need.

You will need a two litre plastic bottle, you can get them from any supermarket, a black marker pen and some scissors, a ruler, and you will need some sellotape.

You can do it without these as well but I'm going to show you using all of these materials today.

So step one, write the measurements onto your bottle.

I'm going to show you how to do that.

So I've got my ruler to help me mark some centimetres on my bottle.

I'm going to try and do it as accurately as I can while showing you under the visualizer.

So I'm going to mark one centimetre, two centimetres, three and then I'm going to move my ruler up and mark the rest of the centimetres up to 15.

So, so far I'm on three.

Step three.

You are going to cut now the top of your bottle off.

I'm going to follow this line that goes across my bottle.

So you need to press your bottle like this.

So you need to take the lid off first and squeeze your bottle so that you can make a hole using your scissors like snap.

You might need an adult to do it for you so that you don't hurt yourself.

Once you've done that, you're going to cut all around the top of your bottles so that you have two parts.

But there you can see they are quite sharp.

So I am going to cut off the sharp parts.

Now I've got the two parts here.

I am going to set my scissors aside and I can put in my bottle in the other, like so.

Now I have made my rain gauge.

I can use sellotape to secure this part to the bottom.

But you don't have to because it will just stay on the top like this.

So now it won't move, it's staying on.

Now the water will go into the top and it will fill in the bottom.

Okay.

So what you are going to need to do is we are going to track the amount of rain that falls across one week.

That means you're going to need to look at your rain gauge every day to see how much rain has collected in the bottom.

So in your exercise book, I would like you to measure it like this.

So we're going to write all the days of the week.

But if you have this science lesson, if you're not following the Oak National Academy schedule and let's pretend today is Tuesday and you watched the video, your table that you write down here is going to start with Tuesday.

Okay? You're going to start with the day that you make your rain gauge, just to make sure you get one week of rain into your rain gauge, okay? So you're not going to start on Monday because the day might not be Monday that you're watching this video.

We want to make sure it's accurate.

In your book can you copy this table? Pause the video, have a go at that now.

But today I am going to pretend that it's Monday and draw my chart, I'm going to have a look.

So here I've got day and then I've got the rainfall in centimetres.

So let's pretend today is Monday and it's raining.

So let's pretend this is outside.

Do do do do do, it's been raining.

Do do do do do The rain falls in the top.

You can see that I've got the rain at the bottom.

I'm going to have a look at the side of the bottle.

There is about one centimetre of rain.

On Monday, we had one centimetre of rain.

I can have a look at the same time tomorrow to find out whether it has rained anymore.

So to make your rain gauge, you are going to gather up your materials, the things that you need.

So you need a water bottle, you need scissors, a black pen, and you need a ruler.

Sorry, I was just checking.

You will then need to create your rain gauge, place it outside so it's ready.

You might need to put some stones in the bottom to stop it from blowing over and blowing away if it's quite windy.

You then going to log the amount of rain that you see in the bottle.

You're going to look at the amount that is in the bottom and write the number down.

And then you are going to see how much it rained every day because it might rain more than once so you might have to keep checking it.

Here you can see a picture of Elliot who has done some fantastic weather logging already.

He made a rain gauge last week because he's a super organised scientist.

So this is what your rain gauge is going to look like when you are writing down the amount of rain every day.

You can see that Elliot has got his notepad ready to measure the rain.

It's quiz time.

You have what so hard today.

See you next time.

Have a great rest of your day.