Lesson video

Hello, my name is Ms. Chorekdjian.

I'm so excited to be learning with you today.

I will be helping you with your geography lesson.

We are going to have a great time learning together today.

Let's get started.

Welcome to today's lesson from our unit called, the water cycle, why is it important? This lesson is called Water Flow Around Buildings.

Your learning outcome will be to describe how buildings collect rainwater and explain how water enters and leaves buildings and is used in many different ways.

Some of this learning is brand new, but I'm here to help you.

This links back to previous learning you might have done about different types of water features locally and globally, and you might have also looked at the water cycle and the processes involved in the water cycle.

Here are the key words that we will be using together in today's lesson.

Let's practise saying them doing my turn, your turn.

Precipitation.

Precipitation.

Purified.

Purified.

Interconnected.

Interconnected.

Good job everyone.

Let's find out what these key words mean.

Precipitation.

Precipitation is water that falls from the sky as rain, snow, hail or sleet.

Purified, if something has been purified, it has had any bad substances removed to make it pure again.

Interconnected.

When two or more things are connected to each other, they are interconnected.

Good job everyone.

I want you to be using these keywords throughout our lesson as well.

Here are the learning cycles that we will be working through together in today's lesson.

First, we're going to be thinking about where rainwater goes, and then we'll be thinking about how rainwater enters and leaves buildings.

I'm really excited to get started today, I hope you are too.

Shall we start our lesson? Turn to your partner and tell them what this image or diagram is showing us.

Did you say that this diagram is a diagram of the water cycle? Good job, well done if you did.

Rainwater is created by the water cycle.

It is a type of precipitation.

Other types of precipitation includes snow, hail, and sleet.

So there you can see in the diagram that rain water falls as precipitation.

It comes from the clouds that are formed when water condenses.

When those water droplets get bigger and bigger, they clump together and fall to the ground as rainwater.

All buildings, like schools and houses collect any rainwater that falls on them.

First, the rainwater flows off the sloping roof of buildings and into an open pipe called a gutter.

There's the roof, and as the rain falls onto the roof, it trickles down the slope of that roof and falls into the gutter.

So there that black half pipe there is called a gutter.

Next to the rainwater travels along the gutter until it falls into a drain pipe.

So remember that rain water will land onto the sloping roof and it'll travel down until it reaches the gutter, and once it's in the gutter, it travels along the gutter and into the drain pipe.

And there you can see the drain pipe that collects all that water and helps it travel down.

Drain pipes lead to underground drains or to water butts.

Rain water that is stored in water butts can be used to water plants in dry weather.

So there you can see an image of a water butt and it can be used to water plants during warm and hot weather.

It is time for a quick check here.

Which of these stores rainwater collected from the roof of a building? Is it A, B, or C? Pause the video and answer that check.

How did you get on? Did you say B? That's correct.

So B is showing an image of a water butt that collects rain water from the roof of a building.

Remember that the rain water falls down that sloping roof, it goes onto the gutter and when it's in the gutter, it travels down the drain pipe and collects in the water butt.

That is then used to water plants or the garden when it's really hot.

Well done everyone if you've got that right.

It's now time for task A.

What I would like you to do is to talk to your learning partner, tell them the story of what happens to raindrops when they fall from a cloud and onto the roof of a building like your school.

Try to use words like gutter, drain pipe and water butt in your explanation.

You can sketch a picture or diagram to help you if you wish.

Pause the video and complete task A.

How did you get on everyone? Were you able to talk about what happens to raindrops when they fall from the clouds and onto the roof of a building? Let's go through this together.

Raindrops fall from the sky onto the roof and then the gutter catches them.

It's an open pipe that goes along the side of the roof.

That's right, the gutter leads to a drain pipe that sends the rainwater into the drain or into a water butt.

So the process is rain falls from the clouds, it lands on roofs of buildings like houses or schools.

It then is collected in the gutter, which is an open half pipe.

Once it's in the gutter, it travels down the drain pipe and then the drain pipe takes all of that rain water down into the drain or a water butt, which is then used to water plants in hot weather.

Well done if you managed to explain that to your partner.

Good job everyone.

You can give yourselves another big thumbs up.

It's now time to continue with our learning.

We are going to think about how water enters and leaves buildings now.

Have a look around your classroom.

Can you see any water or anywhere that you can access water? What about the rest of your school building? Where can you see water in the rest of your building and where do you have access to water? Pause the video and have a think about those questions and then we can come together and go through them.

Pause the video now.

How did you get on looking around your classroom and thinking about the rest of your school building? Did you identify anywhere where you could see water or have access to water? Did you see things like sinks and taps where you can get access to water to wash your hands? Did you see radiators because radiators contain water inside them? Did you see water fountains somewhere where you can get clean drinking water to drink throughout your school day? Or did you say the toilets, water is used to flush the toilets as well? Examples in these pictures are taps, radiators, water fountains, and toilets.

These are just some of the places around your school and your home that will give you access to water.

Well done if you said those and you got them right.

Good job everyone.

The water that we use for everyday tasks is not rainwater.

That means it's not collected in the way that we described in the first part of our lesson.

It is water that has been cleaned and purified to make it safe.

Remember that if something is purified, all of the bad substances are removed from it to make it safe and clean.

This is called mains water.

Mains water travels from external pipes to buildings.

External pipes means that it travels from somewhere that's off the school site.

It's not a part of the school site or your home site.

So mains water travels from external pipes to buildings and it brings you that clean, purified, and safe water.

It's now time to have a quick check.

Talk to your learning partner.

What is the difference between rainwater and mains water? Pause the video and answer that check.

How did you get on thinking about the differences between rainwater and mains water? Shall we see what these pupils have said? One pupil has said, "Rainwater falls from the sky, but mains water comes through pipes." Well done if you said something similar to that pupil.

You could have also said, "We can water plants with rainwater, but humans can't drink it." You might have also said that, Mains water is purified, which means that all of the bad substances have been removed from it to make it safe and clean to drink.

Rainwater hasn't been purified and that's why we can't drink it, but we can use it to water our plants.

Well done if you said those things.

You could have also said that rain water trickles down the sloping roof of a house or a building and travels into a gutter and down a drain pipe.

So you could have explained that process as well.

Well done if you did.

Fantastic learning so far.

Every building has a stopcock.

This is a special tap that controls the water entering the building.

The stopcock can turn the mains water on and off.

Water cannot enter a building any other way than through a stopcock.

There you go, you can see an image of the stopcock there.

And remember that we can use this special tap to turn off the water that enters into a building or we can turn it back on again, and that this is the only way that water enters buildings.

After water has passed the stopcock, it travels through a system of interconnected pipes called plumbing, and those pipes are all over your house.

So once the water enters the building like your house or school, it then travels around that building through those interconnected pipes, which means that they're all connected with each other, and those pipes are called plumbing.

Pipes take water all around the building to the places where we use it, like taps toilets and washing machines.

So all the places where you can access water in the building are interconnected through a series of pipes, and that's called plumbing.

It is time for a quick check here.

What does a stopcock do? A, stop rain water entering a building, B, control means water entering a building, C, store rainwater for future use.

Pause the video and answer that check.

How did you get on? Did you say B? That's correct.

So what a stopcock does is it controls main water that enters a building.

And remember it's that special tap that you can turn on or off, and all water that enters the building comes through the stock.

Well done if you got that right, you can give yourselves another thumbs up.

That's fantastic learning.

After we have used water for tasks like washing, cooking or cleaning, it's called waste water, and that's because it's no longer purified.

We've used it and we've made that water dirty.

So it's waste.

Waste water is not safe for us to drink or cook with.

Another set of internal pipes transports waste water from buildings to the drains.

So this is a different set of pipes that transports all of that wastewater, so all of that water that's unsafe to drink or use out of your building.

The wastewater goes into the drains and then leaves the building when it enters the sewer.

There you can see a picture of a sewer.

Sewers are large underground pipes that transport water away from buildings.

They lead to treatment plants where water is cleaned, ready to be used again.

Remember that once water has been cleaned, it's called purified water because all of those bad substances are taken out of the water and it's made safe for us to use and drink again.

We create wastewater in lots of different ways.

How many examples can you think of? Pause the video and complete that check.

How did you get on? Did you think about all of the different ways that we create wastewater in our buildings? Did you think of when we wash the dishes that creates wastewater? When we use water to boil food, when we wash our hands with soap, when we brush our teeth and we use toothpaste, when we have a bath or shower, you might use shampoo or shower gels, and when we flush the toilet.

We also create wastewater when we use the washing machine because it washes all of our dirty clothes.

Wastewater is also created when we wash our pets or when we wash our cars or bikes.

So you can see here there's a lot of different ways that wastewater can be created in our houses.

It's all of the different times you use water and you make it dirty by using it to wash dirty things, so that water, the wastewater, is no longer clean for us to use and that's why it's taken away from our house through a different set of pipes and through the sewer.

Remember, it goes to a treatment plant where it gets cleaned and purified again.

Well done if you thought of all of those different examples.

Good job, everyone.

It's now time for task B.

What I would like you to do is to talk to your learning partner and tell them the story of what happens to mains water when it arrives at a building.

Try to use the words stopcock, wastewater, and sewer in your explanation.

You can sketch a picture or a diagram to help you if you wish.

Pause the video now and complete task B.

How did you get on with task B? Did you say that mains water can only enter a building through a special tap called a stopcock? Then lots of pipes called plumbing, transport it around to where we need it.

And you could have used the word interconnected to describe those pipes.

You could have said dirty water or wastewater then goes back into more pipes, which lead to the drain that takes it to the sewer.

And remember, once that wastewater is in the sewer, it gets transported to treatment centres where that water is then cleaned and purified and made safe for us to use and drink again.

So the process involves water coming to us through the mains.

It enters the building through the stopcock, which is a special tap.

And then it travels around our house or our building through a set of pipes called plumbing.

And then we access that water through taps or things like washing machines and dishwashers.

That water is then dirty, so it's transported as wastewater through drains and then taken to the sewer where it is transported to treatment centres and purified and cleaned.

And then that process will start all over again.

Once that water is cleaned and purified, it will then come back to our house or our building through the mains and the stopcock once again.

So you can see that that is also a cycle that is constant.

Well done everyone, if you were able to explain those processes in today's lesson.

Good job.

You've done really well today thinking about how buildings collect rainwater and how water enters and leaves buildings.

We've now come to the end of our lesson.

Let's think about all the learning that we've completed together in today's lesson.

Buildings collect rainwater by draining it from the roof through gutters, pipes and drains, or storing it in water butts.

Water enters buildings through a stopcock, travels around buildings in pipes, and is released from taps to be used for drinking, washing, cooking, or other tasks around our house like brushing our teeth or washing our hands.

Wastewater leaves buildings through other pipes that take it to drains, which lead to underground sewers that take it away to the treatment centre so it can be purified and ready for use again.

Well done everyone.

You've worked really hard today.

Thank you for joining me and for sharing your learning with me.

I'll see you really soon for more geography lessons.

Bye.