Hi everyone, it's Miss Panchal here.

I'm so glad you decided to join me on our Science Lesson today.

So our lesson today focuses on Greenhouse Gases, and this is part of our bigger Units of Learning on Properties, Changes and Separating Materials.

Now, some of the words in our lesson today, you should be familiar with already, and some of them may be new to you, but don't worry too much, because we're going to talk through them all in the lesson today.

So let's get started with the lesson.

So the Outcome for our lesson today is, "I can describe how greenhouse gases trap heat around Earth." So we're going to come across some of these Keywords in our lesson today.

So what I'd like you to do is pause the video here and with your talk partner, I would like you to take in turns to reading out the Keywords and their definitions with your partner.

So pause the video here and have a go at saying these Keywords and their definitions.

When you've finished click Play, and we'll continue with the lesson.

Great job everyone, well done.

So our lesson today is split up into two parts.

The first part of our lesson is all about Greenhouse Gases and understanding what they are.

And the second part of our lesson will be looking at Greenhouse Gases and Climate Change.

So let's get started with the first part of the lesson.

So the atmosphere is a mixture of gases that surround Earth, and we've got a diagram here to help us understand that.

So we've got Earth in the centre there.

Then we've got the atmosphere surrounding it, and there is a mixture of gases in the atmosphere.

Have you ever heard of carbon dioxide? So carbon dioxide is a gas which occurs naturally in the atmosphere and it makes up about 0.

04% of the atmosphere.

Hands up if you've heard of carbon dioxide before.

Great job, everyone, well done.

So carbon dioxide, also known as CO2.

And you may have seen CO2 in TV, on books, on adverts, and it is a greenhouse gas.

So carbon dioxide is a greenhouse gas and it's a naturally occurring gas that is in the atmosphere.

So human activities have increased the amount of carbon dioxide in the atmosphere.

Burning fossil fuels like coal, crude oil, and natural gas puts more carbon dioxide into our atmosphere.

So the things that humans are doing have increased the amount of carbon dioxide in the atmosphere.

We burn fossil fuels for heating, transport, and to produce electricity.

So over the last few years, there's been lots of talk in the media and in the news about what things we can do to protect our planet, to reduce the amount of greenhouse gases that are produced.

So things like having your heating on less, maybe putting on an extra layer, means that less fossil fuels will be burning, which means less of those harmful gases will be in the atmosphere.

So greenhouse gases in the atmosphere act a bit like a greenhouse.

Do you know what a greenhouse is? So pause the video here and talk to the person next to you.

Do you know what a greenhouse is? And can you tell me anything about what the word greenhouse might mean? Have a talk with your talk partner.

Great discussion, everybody, well done.

So greenhouses are simple buildings used for growing plants.

They have windows made from glass or plastic.

So we've got a picture here of a greenhouse and we can see as it says, it's a very simple building and it's often used for growing plants.

Do you have a greenhouse or maybe do you know anybody that has a greenhouse? So here we've got a diagram to help us understand greenhouses a little bit more.

So the glass of the greenhouse traps heat from the sun.

And Andeep says here, "The temperature inside the greenhouse is higher than outside because the glass traps heat from the Sun." So we've got heat coming from the sun, which is getting into the greenhouse, but because the greenhouse is made of glass, that glass means that the heat from the sun is actually trapped inside the greenhouse.

So as Andeep is saying here, the temperature inside the greenhouse is actually warmer than the temperature outside the greenhouse.

And that's why when people grow things in the greenhouse, they end up growing much better, much quicker, because the conditions are more ideal.

So let's do a check of our learning.

What two words complete the diagram? So have a look at this diagram here, pause the video, and think about what two words complete the diagram.

If you need to go back over the last few slides to just go over this diagram again and maybe some of the Keywords.

Click Play when you're ready to continue and we'll go through the answer.

Great job everyone, well done.

So the first missing word is greenhouse.

So greenhouse glass traps heat that warms the inside of the greenhouse.

Excellent work everyone, well done.

So greenhouse gases in the atmosphere act a bit like a greenhouse.

So greenhouse gases in the atmosphere trap heat that warms the Earth.

So that's a very similar situation and analogy to a greenhouse.

So let's do a check of our learning.

What two words complete the diagram? Blank gases in the atmosphere trap blank that warms Earth.

What do you think are the missing words? If you need to go back to the previous slide, just to go over the learning again and click Play when you're ready to continue.

Super job, everyone.

So greenhouse gases in the atmosphere trap heat that warms Earth.

Well done, everyone.

Let's do another check of our learning.

What is the name of the greenhouse gas that is released when we burn fossil fuels? Is it A, oxygen, B, carbon dioxide, or C nitrogen? What do you think? Excellent job everybody, it's carbon dioxide.

So let's move on to the first task for our lesson today.

So I would like you to make a poster to show why greenhouse gases have been given that name.

You might want to include pictures or diagrams to help your explanation.

And after you've finished, share your poster with your classmates and tell them what greenhouse gases are.

Now you might choose to do your poster on a piece of paper or you might want to do on the computer.

You might want to make some slides on it or you might want to make a really colourful poster.

I think including a picture or diagram would be really useful to help you with your explanation.

You might even want to make the poster with your partner.

Pause the video here, have a go at making your poster and I can't wait to see all of your work.

Off you go.

Great job, everyone.

I can see you've worked really, really hard on your posters and they're looking fantastic.

Well done.

So your poster may have looked a little bit like this.

Greenhouse gases get their name because both greenhouses and greenhouse gases trap heat from the sun.

With a greenhouse the heat is trapped inside the building causing it to get warmer.

With greenhouse gases, the heat is trapped around Earth causing it to get warmer.

So did your poster have some information like this or did it look a little bit different? Well done for having a good go.

Super job, everyone.

So the first part of our lesson is complete.

We have learned more about greenhouse gases, what they are, and what it means.

We're now going to move on and use that learning to help us understand greenhouse gases and climate change.

So Laura says, "If greenhouse gases make up less than 1% of the atmosphere, why do they even matter?" So pause the video here and I would like you to have a little bit of thinking time on your own first about Laura's question.

Then share your thoughts with your partner and then I want you to share your ideas with the whole class.

So pause the video here and have a little think about Laura's question.

"If greenhouse gases make up less than 1% of the atmosphere, why do they matter?" Have a little think.

Excellent work, everyone, well done.

I know you worked really hard to share your ideas with your partner and the class as well.

You came up with some fantastic ideas.

So greenhouse gases are very important because they affect Earth's average temperature and we need some greenhouse gases to make sure Earth stays warm enough for us to live on.

So Laura says, "But how do we know that Earth is getting warmer?" So temperature is a measure of how hot something is.

So for example, if we were measuring the temperature of some water that you're going to use to make something, we could put a thermometer inside to measure the temperature of it.

Scientists have been measuring temperatures all over the world for many years and collecting this data.

They use this data to calculate Earth's average temperature.

So we can see an example here of a thermometer outside and maybe these people track the temperature of where they are.

This temperature data is evidence that Earth is getting warmer.

Evidence is information which helps us to prove that something is true or not true.

This graph shows global temperatures over the last 2,000 years.

It also shows when humans first started burning fossil fuels.

This collection of data is evidence that Earth has warmed up more quickly in the last 50 years than it did in the past.

So let's have a look at this graph in a little bit more detail.

So we can see here on the X axis, we've got the years and on the Y axis, we've got the temperature.

So we can see that through the Romans, the Anglo-Saxons, the Vikings, and the Tudors, the temperature of the Earth was roughly the same with a few fluctuations.

However, after the Industrial Revolution in the last 50 years, as it says at the bottom of the screen there, we can see that the temperature of the Earth has increased rapidly a lot more quickly than it has previously.

So this really highlights and shows the effects and the impact that human activity has had on our Earth.

So let's do a quick check of our learning.

What evidence is there of Earth warming up more quickly in the last 50 years? Is it A, temperature data, B, light data, or C, noise data? So have a little think.

What evidence is there that the Earth is warming up more quickly in the last 50 years than before that? Great job, the answer is A, temperature data.

Super work, everyone.

So let's move on.

An increase in Earth's average temperature is causing changes to our weather patterns over longer periods of time.

We call these changes climate change.

Weather is short term changes in the atmosphere, and climate is weather patterns over a long period of time.

So for example, we see the weather outside today is sunny, but there are a few clouds.

Whereas when we talk about climate, we think about weather patterns over a longer period of time.

For example, there might be longer periods of drought, which means there's not much rain.

Where it might be the opposite, that actually there's lots of rain and there's a lot of flooding.

So it is important to remember the difference between weather and climate.

Weather is day to day.

Today is sunny, a little bit cloudy.

Tomorrow there may be rain.

Whereas climate is thinking about weather patterns.

It may be that there's drought, which means that there's not much rain at all over a long period of time.

Or it may be that actually the temperature is a lot higher than normal over a long period of time.

So it's really important you remember the difference between weather and climate.

So many habitats are affected by climate change.

So it's not just humans that are affected.

Habitats are also affected by climate change.

For example, melting sea ice can cause changes in sea levels.

A lack of rainfall can damage soil, and too much rainfall can cause flooding.

So there are lots of different effects of climate change and not just to humans, but lots of different animals and their habitats as well.

So some habitats may become too hot for animals to live in.

And changes in climate also affect how and where plants grow.

So climate change is a huge thing that is affecting our whole planet and it affects lots of different aspects of our everyday life, but also not just for humans, for animals and their habitats too.

So let's do a check of our learning.

What is climate change? A, when the weather changes a lot.

B, when we get the wrong weather for the season.

C, a long-term change in weather patterns.

What do we think, A, B or C? Great job, the answer is C.

So we spoke about the fact that climate changes first to long-term changes, changes over a long period of time in places.

Let's look at the next question.

Which of the following are consequences of climate change? A, melting of sea ice.

B, healthy soil.

C, heavy rainfall in July.

So have a little think about this question and click Play when you're ready to continue and we'll go through the answer.

Great job.

So A, melting of sea ice is correct.

So let's move on to the next task for this lesson.

So I would like you to use the information provided on the worksheet to help you research climate change.

Now you might choose to use other secondary sources too.

So this is one of the pieces of research that you can use to help for this task.

But actually there are other different examples and bits of research you can use too.

For example, you could watch some videos, you could read some books, look at some articles on the internet.

Once you've looked at all of your sources, I would like you to make a list of the changes that are occurring on our planet.

So I'm going to read this piece of information to you.

You can read it yourself, but I'm going to read it to you and I would like you to follow along with me.

If it's easier for you, you can print it out and follow that way.

"Climate Change and its Effect on our Planet." "Climate change occurs when Earth's climate or the average weather over a long time changes.

This can mean it gets hotter, colder, wetter, or drier.

Our planet is getting warmer because people burn fossil fuels like coal, crude oil, and natural gas, which release carbon dioxide, CO2 into the air.

Carbon dioxide is a naturally occurring greenhouse gas in the air.

It traps heat from the Sun and helps to keep Earth warm enough for humans to survive.

When we burn fossil fuels, we add extra carbon dioxide to the atmosphere, which means that more heat is trapped and Earth gets warmer.

This warming can have many effects on our planet.

For example, rising temperatures can cause more heat waves, making it hard for people and animals to stay cool.

In the Arctic, ice is melting, which affects animals like polar bears, and raises sea levels, leading to floods.

Weather patterns are also changing.

So some places get more rain causing floods, while others are faced droughts leading to water shortages.

The oceans are getting warmer and more acidic, harming coral reefs and sea life.

Climate change also impacts wildlife, making it hard for animals to find food and adapt.

It also affects humans by causing health problems, damaging homes and making it harder to grow food.

We can help by saving energy, recycling, using less plastic, planting trees and teaching others about climate change." So pause the video here, have a go at this task and I look forward to hearing the list of changes that you have made.

Off you go.

Great job everyone, well done.

I can see you've used lots of different sources of information there to help you make a list of the changes.

So maybe you came up with some of these ideas.

Climate change is causing a lot of changes on Earth.

In many places, summers are getting hotter.

The oceans are getting warmer and acidic, which can kill coral reefs and threaten shellfish.

The heat is causing the Earth's ice to melt, which is reducing habitats for animals at the poles like polar bears, seals and penguins.

Did you get some of these points or did you get some different ones? Here are some more points.

There are more extreme weather events like storms, floods and droughts.

Living things are finding it harder to survive, partly because their habitats are getting hotter or getting flooded.

Animals in some places are finding it harder to find food.

Humans are threatened by extreme heat or by flooding caused by extreme storms. So you may have done a list of bullet points, you may have done a poster or you may have even recorded your work.

But well done by having a good go at this task everybody.

And there was lots of different changes that you could have noted.

So we've come towards the end of our lesson today and we're going to a little bit of a recap of our learning 'cause there's lots of different things that we've covered today.

So the atmosphere is a mixture of gases around Earth.

And carbon dioxide is a gas that makes up about 0.

04% of the atmosphere.

Now can anyone remember what carbon dioxide could also be written as? Excellent, CO2.

Well done, everyone.

Carbon dioxide is a greenhouse gas and it's released when we burn fuels.

And greenhouse gases in the atmosphere trap heat that warms Earth.

Increasing carbon dioxide levels in the atmosphere raises average temperatures on Earth.

And temperature data shows evidence of Earth warming up more quickly in the last 50 years.

So we've done a lot of learning today about greenhouse gases, what it is, what they are, but actually the impact that it has on the Earth.

So it's really important that everybody on this planet does all that they can to help protect our planet and do things to be kind to the planet, to make sure that we're keeping it as safe and as clean as possible.

Now well done, for all of your work today.

I'm so impressed with all of your ideas and the work that you have produced.

I hope you have a great rest of the day and I'm sure I'll see you really soon in the next Science Lesson.

Bye-bye.