Lesson video

Hello, and welcome to lesson four of our unit on healthy eating, persuasive writing.

Today, we are going to be looking at and investigating all sorts of scientific vocabulary.

So, we are going to be scientists today.

So let's put on our lab coats to protect our arms and our clothes, button your lab coat up, looking very smart.

Let's put on our goggles to protect our eyes.

Put them on.

We are ready to be scientists and look at some scientific vocabulary.

Let's go.

Let's go through our agenda today.

First, we will do a writing warmup.

Next, we will look at some healthy and unhealthy snacks.

Then, we will build some scientific vocabulary.

And finally, we will complete our task.

In this lesson, you will need an exercise book or some paper a pencil, and because of all the thinking we need to do you'll definitely need your brain.

If you don't have your exercise book, your paper, or your pencil, please pause the video and go and get them now.

It's time for our writing warmup.

I would like you to write two adjectives to describe each of these snacks.

And remember, an adjective is a describing word.

It tells you what something is like.

Adjectives often describe, or usually describe nouns.

So I've got my nouns written down.

I have apple, cereal bar, carrots and yoghourt.

I would like you to write two adjectives before each of these nouns separating your adjectives with a comma.

Pause the video and do that now.

Good job.

When we are describing food with adjectives, we can describe the way they taste, or the texture, the way they feel in our mouth or in our hands.

Or we can describe what they look like as well.

Here are my adjectives.

I described the apple as sweet and crunchy.

'Cause when you bite into it it sometimes makes a crunchy noise.

I have described a cereal bar as delicious, healthy.

The carrots as crispy, nutritious.

And we'll be looking at the word nutritious a little bit later on.

And I've described the yoghourt as tasty, creamy.

I would like you to give yourself a tick for every adjective that you wrote and for remembering your comma between your adjectives.

Pause the video and give yourself a tick now.

Good job.

Let's discuss healthy and unhealthy snacks.

What makes a snack healthy? Have a think.

Have a think about the ingredients and what the snack does.

Does it fill you up or are you still hungry afterwards? I would like you to have a think about this and either write a sentence telling me what makes a snack healthy or say your sentence aloud.

Pause the video and do that now.

Okay.

Let's have a look.

Some things that a healthy snack will have are things like keeping you full, so you don't have to keep snacking on other things.

A healthy snack will be low in sugar, salt, and fat, and it will contain things that are good for you like fibre, proteins, vitamins, and minerals.

So if those are the things that make a snack healthy, what makes a snack unhealthy? What's in those unhealthy snacks that we should only eat once in a while? I would like you again to write a sentence or say a sentence aloud about what makes a snack unhealthy.

Pause the video and do that now.

Let's have a look.

So, some things that make a snack unhealthy are that they don't fill you up.

You're still hungry after you've eaten it.

Unhealthy snacks have lots of sugar, lots of fats and lots of salt.

So those things that aren't very good for our bodies in big amounts.

They won't have many healthy ingredients that contain things like fibre, proteins, vitamins, and minerals.

And we should really only eat these snacks once in a while.

Let's sort some snacks.

I'm going to show you some pictures of healthy snacks and unhealthy snacks, and you're going to decide if they're healthy or unhealthy.

So here we go.

I've got two columns, healthy and unhealthy and here are my snacks.

I've got some crisps, some oranges, some cookies, some smoothies, some sandwiches, some vegetables, some sweets, and some donuts.

I would like you to sort these snacks.

Are they healthy or are they unhealthy? You can write healthy and unhealthy on your page and write the names of the snacks underneath.

I would like you to pause your video and sort these snacks now.

Okay.

Let's have a look.

So our healthy snacks were the oranges, the smoothies, the sandwiches, and the vegetables.

Things like fruits and vegetables or things that contain fruits and vegetables are really healthy snacks because they contain lots of things that make our bodies healthy.

Our unhealthy snacks, the things that should only eat once in a while, are things like crisps, biscuits or cookies, donuts and sweets.

They are often high in sugar and high in salt which aren't very good for our bodies if we're eating a lot of them.

But of course, we can have these snacks once in a while.

How did you know which snacks were healthy and which were unhealthy? How could you tell just by looking at them? What did you know about these foods? I would like you to say a sentence.

I knew these snacks were healthy because.

I knew these snacks were unhealthy because.

Pause your video and say your sentences aloud now.

Good job.

So we can tell if foods are healthy by the nutrients they contain.

My turn, nutrients, your turn, good job.

Nutrients are substances or things that some foods contain that keep our bodies healthy.

They help them grow big and strong and they help our bodies repair itself so if we get sick or if we get a scratch, our nutrients help our bodies repair.

Some examples of nutrients are things like vitamins, minerals, and proteins.

When foods have lots of nutrients in them, we describe them as nutritious.

Your turn.

So if something is nutritious, it means it has lots of things in it that are good for you.

I hope you still have your lab coats and your goggles on because we are going to be investigating some scientific vocabulary now.

I've written some scientific vocabulary down.

I wonder, have you heard of any of these words? Where have you heard them? Do you know how they keep us healthy? So three things for you to think about.

First, have you heard these words before? Yes or no? Second, if you have heard them, where have you had them? Have you read them on the packaging of food? Have you learned about them at school? Do your parents talk about them? Or your carers talk about them? Number three is, do you know how these things, these nutrients keep us healthy? I'm going to read aloud the vocabulary before you think about these questions.

First one is protein.

Your turn.

Then we have calcium.

Your turn.

Vitamins, your turn.

Minerals.

Fibre.

Okay.

Pause the video and answer my questions now.

You can say the answer aloud, or you can write it down if you'd like to challenge yourself.

Okay.

Well done.

So let's have a look at these words.

Some of you might not have heard these words before and that's absolutely fine because we're going to learn about them now.

We're going to learn about some healthy facts.

The foods we eat contain important, here's that word again, nutrients.

Your turn.

To keep us fit and healthy.

Protein.

Protein helps us build muscle and repair our tissues.

Our tissues are the things that our organs are made from.

So our skin is made of tissue and our tummies are made of tissue.

Calcium is a type of mineral and it helps our bones stay strong.

And it also helps our teeth stay strong.

Fibre helps our body digest food.

So when we eat fibre, it makes our tummies and our digestive systems feel a bit happier because it moves through our body much more easily if we've got fibre in our diet.

Finally, vitamins and minerals.

These help our body in lots of different ways.

They are really important.

It's really important that we're eating lots of foods with vitamins and minerals.

They help among other things, our eyesight, our immune system.

So our immune system is what protects us from colds and flus.

It helps us get better.

Vitamins and minerals help our bodies heal wounds.

So scratches or cuts that you might have, and they keep all ourselves healthy.

'Cause our bodies are made of lots and lots and lots of tiny little cells.

They make sure those stay healthy.

Vitamins and minerals help our bodies grow and stay as healthy as they can be.

And that's why they're so important.

I want you to have a think.

Protein, now remember we said that helps our muscles and our tissue.

What foods do you think we would eat to help us build our muscles? What foods do you think have protein in them? I'd like you to have a little think.

Maybe you play a sport and somebody at your sporting team says, "You need to eat this food to help your muscles." So let's have a look at the foods that contain protein.

These are foods like meat, eggs, nuts, and seeds, and cheese.

Now remember, some people are allergic to some foods so you shouldn't eat those if you are allergic to them.

But it's just a reminder of what foods contain protein.

What about calcium now? When you're a child, you hear lots about calcium because it's really important that our bones are nice and strong and our teeth are nice and strong when we're children.

Do you know what foods you might eat that contain lots of calcium? Pause the video and have a think.

Let's see.

The foods that contain calcium are, milk, yoghourt, broccoli.

In fact, lots of our leafy, green vegetables have high calcium.

And cheese.

So lots of our dairy foods like milk, yoghourt, and cheese.

And lots of our leafy, green vegetables.

Other things contain calcium as well but these are our main ones that we might know about.

Fibre.

Remember we talked about that, the things that help keep our tummy happy.

What types of foods do you think contain fibre? You might see this written in certain places.

Sometimes you see it written on cereal boxes or on different types of breads.

Have a think then, what types of foods might contain fibre? Pause the video and have a think.

Okay, let's have a look.

So there's fibre in fruits, in vegetables, in grains.

So things that we make bread and flour from, but also we might just eat some grains on their own.

And in nuts.

Like I said before, not everybody can eat all of these foods and not everybody can eat nuts but you can eat other foods that contain fibre if you can't eat all of them.

Finally, vitamins and minerals.

Vitamins and minerals are in a lot of different types of foods.

I wonder if you know of any.

Pause the video and have a quick think.

Let's go through it together.

We might find vitamins and minerals in meat, in fruits, in vegetables, in grains, and in nuts.

So lots and lots of different foods contain vitamins and minerals that we need to help keep our bodies healthy and strong.

It's time now for our task.

It's time for our independent task.

Today, I would like you to write two sentences using that scientific vocabulary that we have learned today.

On the screen in front of you, I've given you a part of a sentence.

If you would like to use the parts of the sentence, please do.

But if you would like to write a different sentence and not use my sentence stem, then that is absolutely fine.

My sentence says, is or are.

Remember we use is if there's one or are if there's more than one, if we're using a plural.

is/are an important part of a healthy diet because.

I've got the joining conjunction because which means we need to give a reason and explain our answer at the end.

In the first part of your sentence, you can either choose to put in one of our scientific words or you could put in the name of a healthy snack.

So I'll give you two examples.

I'm going to choose the scientific word, calcium.

And I will say calcium is an important part of a healthy diet because.

What can I remember about calcium? That's right.

It helps our bones.

Okay.

So let me say that sentence again.

It helps our bones and our teeth.

Calcium is an important part of a healthy diet because it keeps our teeth and bones strong.

You could also put the name of a healthy snack at the beginning.

I really love fruit.

And the fruit that I really love to eat is sweet, crunchy apples.

So I'm going to say apples, and because apples is a plural, I'm saying there's more than one I'm going to use are instead of is.

Apples are an important part of a healthy diet because, why are apples good for us? What do they contain? Let me look at my scientific words.

My scientific vocabulary down the bottom.

Proteins, calcium, vitamins, minerals, and fibre.

I think apples definitely contain vitamins and minerals.

And I think they contain fibre as well.

So I'm going to put those three scientific words into my sentence.

So my sentence will be, apples are an important parts of a healthy diets because they contain vitamins, minerals, and fibre.

That would be my sentence.

I would like you to write two sentences making sure you have included scientific vocabulary.

Pause the video and write your two sentences now.

Great work.

You have done so well using that new scientific vocabulary that we have learnt today.

I'm going to share with you my sentences and then we can edit and mark our work together.

My sentences were vitamins are an important part of a healthy diet because they help out eyesight and keep our bodies healthy.

My second sentence was, fruit is an important part of a healthy diet because it contains vitamins, minerals, and fibre.

Okay.

As always, the first thing we will be looking for is have we remembered our tall capital letter and our full stop? If you have remembered your tall capital letter in your sentences, give yourself a tick.

If you haven't, edit it now, draw a line through your lowercase letter and draw a capital letter on the top.

Give yourself a tick for your capital letter.

And then at the end of that sentence, remember to give yourself a tick for your full stop.

So if you haven't remembered your full stop, add it in now.

And then the last thing you're going to give yourself a tick for, is that scientific vocabulary.

So I can see my first sentence I've used the word vitamins.

So I'm going to give myself a tick for that.

And in my second sentence I used vitamins, minerals, and fibre.

I'm going to give myself a tick for those three scientific words.

I would like you to give yourself a tick for using scientific vocabulary as well.

Well done.

You have worked so hard today.

You have done a writing warmup.

You have thought about and sorted healthy and unhealthy snacks.

You have learned some new scientific vocabulary.

And then in our task, you have used that scientific vocabulary in a sentence.

Fantastic work.

Congratulations.

You have completed your lesson.

If you would like to, please share your work with a parent or a carer.