Hi, everyone, my name is Ms. Panchal, and I'm so excited and glad you decided to join me on our science lesson today.

So our lesson today is going to be focusing on the properties of solids, liquids, and gases.

And this lesson is part of our bigger unit of learning on the introduction to states of matter and changing states, so we're going to be focusing on solids, liquids, and gases today, and their properties, let's get started with the lesson.

So the outcome for our lesson today is I can describe simple properties of solids, liquids, and gases.

So we're going to talk through some keywords that we're going to use in our lesson today.

So we have states of matter, solid, liquid, gas, and properties.

What I'd like you to do is pause the video here and take it in turns with your partner to read out the definitions of all of these different words.

When you have had a go at reading them, I'd like you to click Play again, and we'll continue with the lesson, off you go.

Wonderful reading, everybody, well done.

Now don't worry too much if you're not sure about some of the words because we are going to be using them in our lesson today.

So our lesson for today is split up into two parts.

So we're first going to be learning about solids, liquids, and gases, and then we're going to use that knowledge to help us think about the properties of solids, liquids, and gases.

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

So Jacob and Sam have been learning about materials and Jacob says, "I know that a material is the substance that objects are made from, such as wood, metal, or plastic.

And materials are used to make objects such as tables, cars, and books." Do you agree with Jacob? So pause the video here, and if you need to read over what Jacob said again, have a little think, do you agree with what he's saying, or do you disagree? And then I would like you to share your answer with your partner.

Great ideas, everybody, well done.

So materials come in all shapes and sizes.

The substances that they are made from can also exist as different states of matter.

We've got solid, liquid, and gas, and we're going to be focusing a lot on the states of matter in our lesson today.

There are lots of different types of materials, and the word 'material,' actually comes from the word 'matter.

' So if we have a look at the word material here, it starts with M-A-T, which actually relates to matter because it also has M-A-T, so material and matter are both linked, both words refer to what objects are made from.

Some materials are in a solid state, like plastic.

Some materials are in a liquid state, like oil, and some materials are in a gas state, like oxygen in the air.

So we've got three states of matter here, solid, liquid, and gas.

Let's do a check of our learning.

Substances can exist as different states of matter.

What are the three states of matter? Is it A, gas, B, water, C, liquid, D, solid? So you need to pick three out of these options here.

Super job, everyone, well done.

The answer is gas, liquid, and solid.

Super work, everyone.

So let's move on.

Jacob says, "I am not sure how to tell if a material is in a solid, liquid, or gas state.

Do you know?" So pause the video here and have a little think, how do we know if a material is in a solid state, a liquid state, or a gas state? Have a little think.

Brilliant ideas, everybody, well done, and keep those ideas in your head because we're going to be using them in our lesson today.

So solids, liquids, and gases have different properties.

The properties of a material or substance are its qualities or things it can do.

This means that one substance can behave in different ways depending on what state it is in.

Let's do a check of our learning.

Solids, liquids, and gases have different, measurements, containers, properties, predictions, which word do you think is missing from this sentence? Great work, the answer is C, properties.

So solids, liquids, and gases have different properties, and once we learn about these properties, we can then spot solids, liquids, and gases.

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

You have three balloons; one contains solid water, so ice inside, one contains liquid water, and one contains gas, which is air.

Use the balloons and these questions to help you describe the properties of solids, liquids, and gases, and I want you to do these two activities as well within this task.

So I'd first like you to think about, which balloons can you change the shape of out of the three balloons that you've got? And then the second thing I'd like you to do is use scissors to cut the knot of each balloon, then try to empty the contents of each one into a bowl.

And what happens when you do that? On a whiteboard or piece of paper, I would like you to write down what you think the properties of solids, liquids, and gases are.

So this task is a bit of an opportunity to explore the different states of matter, and I would like you to have your three balloons ready, and you might need to ask an adult to help you cut the knot off each balloon.

So pause the video here, have a go at this task, and remember to write down your ideas of what you think the properties of solids, liquids, and gases are.

Have great fun with the balloons, and I look forward to hearing all the things that you found out in this investigation.

Off you go.

Brilliant work, everybody, well done, I can see that you were really fascinated with all three of those balloons, and you had some fantastic results.

So the first question was, which balloons could you change the shape of? So we pressed onto each balloon and squashed them with our hands.

We could change the shape of the balloons containing the gas and the liquid, but not the solid.

Did you find that too? So in this example answer here, they could change the shape of the balloons that had the gas and liquid inside, but the one that had the solid, they were not able to change the shape of the balloon.

Hands up if you also found that too.

Fantastic work.

And the second part of the task was I wanted you to use scissors to cut the knot off each balloon, and then try to empty the contents into the bowl.

What happened when you did this? So an example answer was, "When we tried to empty the balloons into a bowl, the solid did not flow into the bowl, and the ice stayed the same shape.

The liquid flowed into the bowl and changed shape to take the shape of the bottom of the bowl, and we couldn't see the gas, but we know it escaped out into the room because the balloon was no longer inflated." So did this happen to your balloons when you tried to empty the contents or did you have some slightly different results? But well done by having a good go at this task, everyone, well done.

So we've learned a little bit more about solids, liquids, and gases and you've had a little bit of an investigation with balloons.

So we're now going to use that knowledge to help us understand a little bit more about the properties of solids, liquids, and gases.

So water can exist in solid, liquid, or gas state, and we can use water as an example to help us understand the properties of different states of matter.

Jacob says, "Water in the liquid state can change shape, but I'm not sure how.

Do you know?" So Jacob is saying that when water is in a liquid state, it can change shape, but do you know how that can happen? Pause the video here, have a think on your own, then share your idea with your partner, and then share your ideas with the rest of the class.

Did you get similar ideas or did you get different ones? Great ideas, everybody, well done, and well done for sharing them with the rest of the group.

So a liquid is something that can be poured easily and takes the shape of the bottom of its container.

And we can see a picture here, it's got the same volume of coloured water in different shaped containers.

So even when liquids change their shape, they always take up the same amount of space, and we call this volume.

So if we have a look at this diagram in a little bit more detail, so each of these different containers are completely different shapes, but actually, they hold the same volume of coloured water, and it's just that the containers are actually different shapes and sizes, but actually, there is the same amount of liquid in each one.

This means that liquids have a fixed volume.

Let's do a check of our learning.

Can be poured easily and take the shape of the bottom of the container that they are in.

Do we think that's A, solids, B, liquids, C, gases, so what's the missing word at the beginning of this sentence? Brilliant work, everyone, the answer is B, liquids.

So liquids can be poured easily and take the shape of the bottom of the container that they are in.

So let's move on to solids.

So solids have many different appearances, that means what they look like and properties.

For example, here we've got ice, rubber bands, wood, and plastic toys.

Solids have a fixed shape, but some solids can change shape when force is applied.

Solids have a fixed volume, they always take up the same amount of space.

So that's something they have in common with liquids.

So we've just learned that liquids have a fixed volume, and solids also have a fixed volume because that means they always take up the same amount of space.

Jacob says, "I don't think I've ever seen or felt a gas.

I'm still not sure that a material can be a gas.

What do you think?" So pause the video here, and have a little think about what Jacob is saying.

If you need a little clue, have a look at the picture on the screen and that will help you.

Brilliant work, everyone.

So gases can be tricky to understand because they're often invisible to the human eye, but we can feel them, so often gases we cannot see, that's why it's quite tricky to understand.

The air is a mixture of gases that we can feel by moving our arms around.

So everyone get your hand for me, and just move it from side to side quite quickly, and you can feel the air, however, we cannot see it, that's why it can be a little bit tricky to understand.

Gases can flow, even though we can usually not see them.

They will spread out to fill the container they are in, and take the shape of the whole container.

If their container is not sealed, gases can escape and spread out, so they don't have a fixed shape or volume.

So this is one of the key ways that gases are different to solids and liquids.

So gases do not have a fixed shape, and do not have a fixed volume.

Have you heard of any gases? So pause the video here, and I'd like you to write down some ideas on your whiteboard.

Have you heard of any gases or can you tell me anything else you know about gases? Click Play when you're ready to continue and we'll go through some examples.

Great ideas, everybody, well done.

So air is a mixture of nitrogen, oxygen, carbon dioxide, and they are all in a gas state, so all the air around us contains these different gases.

Animals, including humans, need oxygen to survive, and oxygen is an example of a gas.

Plants also need carbon dioxide to survive.

Let's do a check of our learning; are often invisible to the human eye.

They have no fixed shape or volume, so what is the missing word to this sentence? Is it A, solids B, liquids or C gases? What do we think is correct? Brilliant work, everyone, well done.

The answer is C, gases.

So gases are often invisible, and that's why we've said sometimes it's quite tricky to understand gases because we can't actually see them a lot of the time, and they have no fixed shape or volume.

Well done, everyone.

Let's move on to the next question.

Blank, have a fixed shape and volume, but some solids can change shape when a force is applied, what do we think is the missing word? A gases, B, liquids, or C solids? Brilliant, the answer is C, solids, well done, everyone.

So let's move on to the next task of our lesson today.

So I would like you to look at the statements below and decide whether they apply to materials in the solid, liquid, or gas state.

Some might apply to more than one state.

So what I'm going to do is read up different statements to you, and then the task is, to next to it, write down whether it's in liquid state, solid state, or gas state.

Now as I said, some of them might have more than one state.

So let's go through the first statement.

No fixed shape or volume.

The next one, cannot be poured.

Can be poured easily.

Takes the shape of the bottom of their container.

Fills any sealed container that they are in.

Keeps their shape unless a force changes it.

Fixed volume, and fills the container they are in.

So if you would like to, you can write out these statements or you can ask an adult to print this slide for you, and you can write solid, liquid, or gas, or even more than one, next to each statement.

So press pause here, have a go at the task, and click Play when you're ready to continue, and we'll go through the answers.

If you need to, go back over some of the slides in today's lesson, to go over the learning before you complete the task.

Off you go.

Excellent work, everybody, well done, I can see you've done some beautiful handwriting as well.

So let's go through the answers.

So no fixed shape or volume, we know that's a gas.

Cannot be poured, we know that's a solid.

Can be poured easily, is a liquid.

Takes the shape of the bottom of their container, that's a liquid.

Fills any sealed container that they are in, it's a gas.

Keeps their shape unless a force changes it, solid.

Fixed volume, solid and liquid.

Fills the container they are in, which is gas.

So did you get these answers? Well done, everyone for having a good go at this task, I know there was lots of knowledge and learning about solids, liquids, and gases that you needed to remember, but I'm so impressed with your efforts, so well done, everyone.

So we've come towards the end of our lesson today about the properties of solids, liquids, and gases, so let's do a summary of our learning.

So substances can exist as different states of matter, solid, liquid, and gas.

Solids, liquids, and gases have different properties.

Liquid can be poured easily and take the shape of the bottom of the container that they are in.

A solid has a fixed shape and volume, but some solids can change shape when a force is applied.

Gases are often invisible to the human eye.

They escape from an unsealed container and have no fixed shape or volume.

So we've looked really carefully at different states of matter today, solid, liquid, and gas.

We've looked at some examples, but we've mainly focused on their properties.

Now, I'm really impressed with all of the work that you've produced today, I know there was quite a lot of learning to remember.

Have a great rest of the day, and I'm sure I'll see you really soon in the next science lesson, bye-bye!.