Hello, my name is Mrs. Mehrin, and I'm so excited to be learning with you today.

Today we are going to be learning all about food scientists.

Let's begin.

Welcome to today's lesson from the unit Healthy Me.

Your lesson outcome is: I can describe how nutritionists carry out tests and make observations to help us make healthy choices.

Now, I know that learning can sometimes be a little bit challenging, but that's okay because it just means that we are going to work really hard together and learn lots of fabulous new things.

Let's begin.

Let's start with your keywords for today.

We're going to do my turn, your turn.

My turn, healthy.

Your turn.

My turn, nutritionist.

Your turn.

My turn, observe.

Your turn.

My turn, choice.

Your turn.

My turn, result.

Your turn.

Fantastic, well done.

Now our lesson today is split into two parts.

Let's begin with the first part, food scientists.

Alex is at the supermarket and he says, "There are so many different foods here.

How do I know which foods to eat as part of a healthy diet?" So I want you to think about this question here.

How do we know which foods to choose? When we're in a supermarket, how do we know which ones are healthy for us and which ones are unhealthy? I'll give you five seconds to think about your answer.

Fantastic, well done.

So the obvious choice is any fruits or vegetables, we know that those are healthy for us, but let's find out if there's another way that we can work out what's healthy or unhealthy for us.

Now, some people have jobs where they find out more about food.

These people are food scientists, and we've got one here.

I've got a picture of a food scientist here who's using their observation skills.

Now, do you know the name for a food scientist? I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done.

A food scientist is called a nutritionist.

Now, a nutritionist studies food and how it works in your body.

So let's do a quick check-in to see if you've remembered that.

Someone who works as a food scientist is called what? A, a botanist; B, a nutritionist; or C, a pharmacist.

I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done.

The answer is a nutritionist.

Now, how do you think a nutritionist finds out more about food? What do you think they might do to help them? I'll give you five seconds to think about your answer.

Fantastic, well done.

Let's find out.

So they carry out tests on the foods that we eat.

And you can see some pictures here.

One food nutritionist is looking at the meat and finding out more about it.

And we've got another nutritionist here who is looking at fruits.

Now, nutritionists use their senses when they test foods.

So we have five senses: sight, hearing, touch, taste, and smell.

Now, which senses out of these five do you think might be useful for testing food? I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done.

So about four of these would really help us.

So sight, looking at the food, and we could see that in the previous pictures where they were looking through the microscope at the food.

Touch would be a great one as well.

And being able to touch that food would tell them a little bit more about it.

Taste, absolutely.

And also the smell.

Now hearing, not so much.

Now, nutritionists can test how foods feel, look, smell, and taste.

And why do you think they might do this? I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done.

So nutritionists make observations of different foods in order to find new ways of making healthier foods.

And if humans eat a healthy diet, they can have healthier lives.

So we have two children here who want to make healthy food choices.

We've got Aisha and Lucas.

And Aisha says, "We know that eating foods containing a lot of fat can be unhealthy if we do it often.

We can test different foods to find out if they have fat in them." Lucas says, can we observe, so can we look closely at whether each food has fat in it? This will help us to make healthy food choices.

What do you think? Do you have any ideas for how to observe fats in food? I'll give you five seconds to think about your answer.

Off you go.

So one thing you can do is if, for example, you've cooked with something like oil or butter and you allow that food to cool down, quite often that fat will rise to the top of that food and it will become solid and become hard and you'll be able to see it.

So you'll be able to see the fat that way, but you can't do that for every single type of food.

So let's see what else we could do to see whether or not there are fats in a food.

So Aisha has brought some food home in a paper bag and here's Aisha's paper bag.

And she says, "There is something on this bag.

It looks a bit like water, but it's not raining outside.

And I don't know where it's come from." Aisha's mum says, "That's not water.

It comes from foods that have fat in them and they leave a mark on the paper bag." So Aisha opens the paper bag to look at the food inside.

Where the cake has been touching the bag, the paper has soaked up some of the fat from the food, leaving a greasy mark.

So when you are baking a cake, you'll often use butter, and butter is a type of fat.

It is a type of dairy as well, but it's also a type of fat.

So where that grease has come from from the cake is most likely from the butter in the cake.

And this, as we know, means that Aisha's cake has got fat in it.

Now we could use this idea to test other foods to find out if they have fat in them.

We can put them in a paper bag and see if they leave a mark.

That's a fantastic idea from Aisha.

And Lucas says, "This could help us to make healthy food choices because humans should only eat a small amount of foods that contain fat each day.

Too much fat can be unhealthy." So the children prepare to test different foods to learn which have fats in them.

Aisha says, "We will need different foods and some packing paper or a paper bag.

We will cut strips of paper and put different foods on them." Lucas says, "We will observe what happens next.

Foods that have fat in them will leave a greasy mark on the paper." So the children place the different foods on the paper bag and leave them overnight.

And Aisha says, "We will write the name of each food next to it on the paper, then observe what happened." So look closely at what's happened.

So let's do a quick check-in of your learning.

It says, what do nutritionists test and observe? Is it A, food; B, fabrics; or C, habitats? I'll give you five seconds to think about your answer.

Off you go.

Fantastic, well done.

The answer is food.

Now you are going to do an experiment today and you're going to be testing out different foods by observing the greasy mark left on paper to show fats in foods.

Now it's going to be very similar to what Aisha was doing.

So you will need paper.

Paper bag would be fantastic.

Different foods, and here are some examples of food that you could use, but you could try different foods if you'd like.

So things like cheese, chocolate spread, sausages, crisps, bread, tomatoes, any of those kind of things.

But like I said, if you don't have those, it's not a problem.

You can use different foods instead.

So you may want to do it in a table like this, which would be really helpful too.

So what I want you to do now is to pause the video and have a go at observing what happens when you leave your chosen foods on top of a paper bag or paper.

Off you go.

Fantastic, well done.

So let's have a look at what Lucas found.

He said that, "Foods that have fat in them will leave a greasy mark on the paper." So if we have a look at these pictures here, we've got the cheese.

It has left a little bit of a greasy mark.

The chocolate spread has left a lot.

The sausage has left a little bit.

The crisp has left a little bit as well, can see quite a lot there actually.

The bread doesn't seem to have any, and neither does the tomato.

So let's have a look at how Lucas has presented his ideas.

He put them in a table like this.

So he's put tomato, no; crisp, yes; chocolate spread, yes, a lot; sausage, yes; bread, no; and cheese, yes.

So that means that we are now onto the second part of our learning for today.

So the children observe what has happened to the foods they tested when left overnight.

And Lucas says, "The chocolate spread has made a large greasy mark on the paper.

The sausage has left a smaller greasy mark.

This means the chocolate spread has a lot of fat in it and the sausage has some fat, but not as much as the chocolate spread." The children look at the other foods they tested and observe what has happened.

And Aisha says, "I can see a greasy mark around the crisp and the cheese, so these foods have fat in them.

I can't see a greasy mark around the tomato or bread, so I don't think they have much fat or any fat in them." Why are these results useful to nutritionists? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done.

So nutritionists can share the results of their tests with food companies and schools to encourage healthy choices.

Now, why do you think it's important for humans to be able to make healthy food choices? I'll give you five seconds to think about your answer.

Fabulous, well done.

So eating healthy foods can help humans to have healthier lives.

Now I want you to think about this.

What healthy food choices have you made today? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done.

So today I have made some healthy choices.

So I've had a salad for my lunch today with lots of different types of vegetables in there.

I've had some salads like lettuce, I've had some peppers, some cucumbers, some onions and sweet corn.

And I've also added some meat to that as well.

I've also had a little bit of bread to go alongside it.

Now, true or false? Nutritionists share test results with food companies to encourage healthy choices.

Is that true or false? I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done.

The answer is true.

Now I think this because A, nutritionists test different foods to find out how they work in a human's body, or B, nutritionists use their senses to test food.

Again, I'll give you five seconds to think about your answer.

Off you go.

Fabulous, well done.

The answer is A.

Now we are going to move on to the second part of our learning today.

And it says, look at the results of your tests.

What have you observed and what healthy choices can you make now? And Lucas says, "Humans should only eat a small amount of foods that contain fat because too much fat can be unhealthy." So have a look at your results.

You may have chosen to do different foods to what Lucas did.

What does your paper look like? Is there quite a big mark of oil on there, like the chocolate spread? And what does that tell you? Does it tell you that your food was healthy or unhealthy? Which ones don't have a very big oil mark on them? What does that tell you? Does that tell you it's healthy or unhealthy? And I want you to think about what healthy choices you might make from now on.

So I'd like you to pause the video here and have a go at that activity.

Off you go.

Fabulous, well done.

So Aisha says, "The food that has the most fat is the chocolate spread, so I know that I shouldn't eat that very often." Lucas says, "The crisps, cheese, and sausage have some fat in them, so I should only eat these things sometimes.

The tomato and the bread contain very little or no fat, so I can eat these foods more often." Now we are on to the summary of our learning for today.

Scientists who study food and how it works in your body are called nutritionists.

Nutritionists carry out tests and make observations of the food we eat.

Nutritionists share their results with food companies and schools to encourage healthy choices.

Now, I hope that this lesson has helped you to think really carefully about the food that you are eating every day, and that it's going to help you to make better choices about the food that you eat each day.

So remember, you can eat some food with fats in them, but just not all the time.

We should be trying to eat healthier.

So those foods that have little to no fat, those we should be eating more often.

Well done.

You have worked so hard and I am so, so proud of you.

Well done.