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Hi everyone.
It's Ms. Panchal here, and I'm so glad that you have decided to join me on today's science lesson.
Now we're gonna be learning all about magnetic and non-magnetic materials.
Now I've got lots of excellent learning to do today, so let's get started.
So the outcome for today's lesson is I can compare and group together everyday materials on the basis of whether they're attracted to a magnet and identify some magnetic materials.
So lots of fantastic learning to be done in today's lesson.
So we're going to go through some key words now and we're going to practise saying them.
So I'm going to say the word and I would like you to repeat it back to me.
My turn.
Material.
Your turn.
Excellent job, everybody.
Well done.
My turn.
Magnetic.
Your turn.
Super.
Well done.
My turn.
Attract.
Your turn.
Well done, everyone.
My turn.
Non-magnetic.
Your turn.
Superstar.
Well done.
And lastly, my turn.
Metal.
Your turn.
Amazing job, everyone.
Well done.
You've done such a great job with practising saying these keywords.
Now some of these keywords you may have seen before and you may know what they mean, but some of them you may not have.
So please don't worry because we're going to talk through and learn about all of these different keywords.
So we have material, magnetic, attract, non-magnetic and metal.
So all of these words will come across in today's lesson.
So we've got three sections to today's lesson.
We are going to start off with thinking about magnetic materials.
We'll then move on to which materials are magnetic.
And then finally we'll be finishing off with separating magnetic and non-magnetic materials.
So let's get started with the first part of today's lesson.
Magnets are metals which attract some materials.
If a material is attracted to a magnet, we say it is a magnetic material.
So let's have a look at the diagram here.
So we've got a magnet on the left hand side and we've got a spoon on the right hand side.
The spoon is attracted to the magnet, so it must be made from a magnetic material.
The spoon is a magnetic material.
It'll appear to stick to a magnet when held next to it.
So if we have a look at this diagram here, we've got a magnet at the top and the spoon here is attracted to the magnet and is not on the desk surface anymore.
A magnetic material will also move towards a magnet if they're held close together.
So let's look at this diagram just slightly different here.
So we have the magnets, you have the spoon and the desk surface.
Some materials are not attracted to magnets and these are called non-magnetic materials.
So let's have a look at this diagram is similar but a little bit different to what we've just looked at.
So we have the magnet again and our desk surface and we have the pencil on the desk surface, but the pencil does not appear to stick to the magnet.
The pencil does not move towards the magnet.
So the pencil here is made from a non-magnetic material, which was different to the diagram we looked at earlier where the spoon was stuck to the magnet.
So let's do a quick check of our learning just to make sure that everyone is happy with what we've learned so far in today's lesson.
So we've got a sentence here and we need to think about what the missing word is.
So I'm going to read out the sentence to you and then I'll give you a few moments to have a think about what the missing word is.
Magnetic materials are to magnets.
So I'm going to give you a few moments now to have a think and then we will go through the answer.
Super work, everyone.
You did such a fantastic job with this question.
The missing word is attracted.
So magnetic materials are attracted to magnets.
Now we've got another true or false question here, which is checking our learning from today's lesson so far.
If a material moves towards a magnet, it is a non-magnetic material.
So do we think this statement is true or false? I'm gonna give you a few moments to think about what you think the answer is.
Well done, everyone if you said false.
Now we're going to extend this answer a little bit and I would like you to have a think about why this statement is false.
So do you think, A, non-magnetic materials are not attracted to magnets or B, non-magnetic materials are attracted to magnets from a distance? So I'll give you a few moments now to have a think about which option you think is correct and then we will go through the answer shortly.
Fantastic work, everyone.
Well done.
The answer is A, non-magnetic materials are not attracted to magnets.
So we're gonna talk through our first task for today.
So we're going to be testing some objects to find out if they are made from magnetic or non-magnetic materials.
So you can either talk to your partner about what you found out or you can jot down your ideas in a table like this.
Pause the video now to have a go at the task.
Well done everyone for having a great go at that task.
And we're going go through some examples and your results maybe similar to this or a little bit different.
So we've got some range of different objects here and we've got some different materials, whether it's plastic or metal or wood.
And also we're stating whether it's magnetic or non-magnetic.
For example, the paperclip was our object, the material, we know it was metal and we tested whether it's magnetic or non-magnetic and we discovered that it was magnetic.
Whereas the ruler, for example, we know that it's made out of plastic.
And then naturally, it won't be attracted to the magnet, therefore it is non-magnetic.
So your results may have looked a little bit like this or they may have been a little bit different based on the objects that you investigated.
So I would now like you to talk to your partner to share what you have found out about magnetic and non-magnetic materials.
So Andeep here is saying, "I found that every object that is not metal is made from a non-magnetic material," whereas Izzy here is saying, "I'm confused because I found that some metals are magnetic materials, but some metals are non-magnetic materials." So Andeep here is saying one thing, Izzy is saying something a little bit different.
So I would like you to have a think about what did you find out? So did your results follow with what Andeep was saying or follow what Izzy was saying? So we're going to move on to the next part of our lesson here.
So we've spoken about magnetic materials and we've learned about magnetic and non-magnetic materials.
And we're now going to have a think about this question.
Which materials are magnetic? So objects made from materials that are not metal are not attracted to a magnet.
So we have a picture of a plastic bottle here, a wooden toy and a glass beaker.
Plastic, wood and glass are all non-magnetic materials.
None of these materials would be attracted to a magnet.
So if we put a magnet near these object, they would not be attracted to the magnets as the plastic, wood and glass, which the materials of all these objects are made from are non-magnetic materials.
Often people think that all metals are attracted to magnets and Izzy found out that not all metals are magnetic.
So let's recap what Izzy thought here.
"I found out that the drawing pin and bracelet are made from metal, but they're non-magnetic." Which metals can you name? Which ones are attracted to a magnet? So I'd like you to pause the video here.
You can either have a talk with your talk partner or maybe jot down some ideas on a piece of paper.
Which metals can you name and which ones are attracted to a magnet? Press play on the video again when you would like to continue with the lesson.
Iron is a magnetic metal.
Steel is also a magnetic metal because it contains iron.
So we've got some iron nails here which can be used for joining together some very heavy materials like wood but also leather as well.
We've got steel food cans and we've also got a stainless steel fork.
Now some other metals are also magnetic like cobalt and nickel.
Most other metals are non-magnetic.
For example, aluminium foil, copper pipe, a brass saxophone and gold rings.
Aluminium, copper, brass and gold are all non-magnetic metals.
So we've done a little bit more learning all about magnets and materials and thinking about if they're magnetic or not.
So let's do a quick question now to check our understanding.
True or false? All metals are magnetic.
Gonna give you a few moments and then we'll go through the answer.
Excellent work, everyone.
The answer is false.
Now I want you to have a little think now about why that is false.
Do we think A, magnets attract anything which is a silver colour or B, magnets only attract some metals.
So going to give you a few moments now to have a think about which is the correct answer, A or B.
Super work, everyone.
The answer is B.
So we know that not all metals are magnetic and magnets only attract some metals, not all.
So let's have a look at the next question here to check our understanding.
Which of these metals are magnetic? A, iron, B, aluminium, C, steel, D, copper.
So I'm going to give you a few moments now to have a think about which of these metals are magnetic and then we'll go through the answer shortly.
Amazing work, everybody.
The two metals that are magnetic here in this list is A, iron and C, steel.
Aluminium and copper are both examples of non-magnetic metals.
So we're going to move on to our second task now.
So Andeep and Izzy are discussing magnetic and non-magnetic materials.
So Andeep here is saying aluminium and copper are both metals.
So they are magnetic materials, whereas Izzy here is saying something a little bit different.
Izzy is saying that aluminium and copper are metals, but they're non-magnetic.
Who do you agree with and why? So I'd like you to pause the video here and either talk to a talk partner or jot down your ideas on a piece of paper.
And I would like you to think about who do you agree with, but also have a think about why and then we will go through the answer shortly.
Excellent work everyone if you said Izzy is correct.
So Izzy said aluminium and copper are metals, but they are non-magnetic.
So we've learned in our lesson today so far that some metals are magnetic, but not all metals are magnetic.
So just to recap here, most metals are actually non-magnetic.
And examples of magnetic metals include iron, steel, nickel and cobalt.
But aluminium and copper are non-magnetic materials and metals.
So we're now gonna move on to the second part of this task.
So complete Jun's table of results for his magnetic materials investigation.
So Jun has done some investigations and we need to fill in the gaps.
So we've got object, metal and then we need to say whether it's magnetic or non-magnetic.
So I would like you to pause the video here and you can either copy this worksheet out or you can jot down your ideas on a piece of paper or you can talk with your talk partner and have a think about filling in the missing gaps.
And then we'll go through the answers very shortly.
So pause the video here and have a go at the task.
Super work, everyone.
I know there were a lot of gaps there to fill, so you did a fantastic job.
So let's go through the answers.
So the metal nail, the metal is iron and it's magnetic.
The water pipe was made out of copper and was non-magnetic.
The drawing pin was made out of brass and that is non-magnetic.
The 5p coin made out of nickel plated steel and it's magnetic, kitchen foil is made outta aluminium, therefore it's not magnetic.
And the bracelet, which is made out of gold was non-magnetic.
Excellent work, everyone.
Super application of your learning.
So we've gone through two parts of our lessons so far and you're all doing such an amazing job.
Well done.
So we're now moving on to the final part of our lesson where we're going to be learning about separating magnetic and non-magnetic materials.
So magnetic forces are used in recycling.
Now recycling is a huge thing of our world and it's something that all of us can do to help protect our planet and make sure our planet is as healthy and strong and happy as it can be.
Lots of our waste ends up at recycling centres.
At these centres, waste is separated and sorted into different materials so that it can be recycled.
How do you think magnets could help separate materials? So either have a talk with your talk partner or jot down some ideas about how do you think magnets could help separate materials.
Pause the video here, have a little think and then press play when you're ready to start the lesson again.
So magnets are used to help separate magnetic materials from from other waste at recycling centres.
The waste moves along a conveyor belt and magnets above the belt attract objects made from metals such as iron and steel.
So you've got a picture here which shows the conveyor belt, so that's moving an object at a recycling centre.
We can see there's lots of recycling objects on those conveyor belts.
And so magnets above the conveyor belts attract objects made from metals such as iron and steel.
So all the recycling that you do at home, when it gets collected once a week or twice a week where it, depending on where you live, it gets taken to these recycling centres so they can be sorted.
Another place that magnets help to separate magnetic and non-magnetic materials for recycling is in a scrap yard.
So we've got a picture here of a scrap yard.
Now these places are where old cars and other items containing metal are taken when people no longer want them.
So we can see a big pile here, which is a scrap yard, and it's got lots of old cars and other large items that contain metal that people might not want anymore.
It might be because they're broken or it might be because they're really old.
When a car is scrapped, it is chopped into tiny pieces.
So a special type of magnet here is being used to move scrap metal.
So you end up with a pile that contains a mixture of materials.
And so then a large magnet picks up large piles of magnetic metal and leaves the non-magnetic materials behind.
So we can see in the picture here, this magnet is going to be collecting all of the magnetic metal and the non-magnetic materials are going to be left behind.
So this is a way of separating magnetic and non-magnetic materials.
So let's do a quick check of our learning of what we've done so far in this section of the lesson.
So we've got two sentences here and we've got a missing word.
At recycling centres, waste is sorted into different.
Some of these are magnetic and some are non-magnetic.
So I'm gonna give you a few moments now to have a think about what is the missing word and then we'll go through the answer very shortly.
Amazing work, everybody.
The answer is materials.
So at recycling centres, waste is sorted into different materials.
Some of these materials are magnetic and some are non-magnetic.
So let's move on to our next question.
How do magnets help separate and sort waste at recycling centres and scrap yards? A, they attract some plastics.
B, they attract all metals, or C, they attract some metals.
So have a think back to the learning we've just done in this part of the lesson and think about whether A, B or C, which one is correct.
Have a few moments to think and then we will go through the answer.
Amazing work, everybody.
The answer is C.
They attract some metals 'cause you spoke about earlier in the lesson that not all metals are magnetic.
So the next task, we're going to be using our knowledge of magnets and materials to help design a sorting process for a recycling plant.
So I would like you to have a think about how will you separate a pile of mixed waste into three groups.
One of your groups will be non-metals, the other group, non-metals, and the last group, magnetic metals.
Does the order you do things matter and how will you record your ideas? So I want you to pause the video here and I would like you to have a go at this activity.
Now, you might want to draw your process for your recycling plant or you might want to write it out.
It's completely up to you, but I want you to have a really good go at this using our knowledge from today's lesson and then play the video again when you're ready to continue, and then we'll go through an example.
Good luck.
Amazing work, everybody.
I know that was quite a tricky task, but I know you all gave it a really good go, which is fantastic.
So we're gonna go through an example answer now, and this might be how you've recorded your plan, but yours may look a little bit different.
So we'll start off with having mixed waste, and then we'd separate the waste into metals and non-metals by hand, and then we'd wave a magnet over the metals to attract only magnetic metals, and then we'd be able to remove the magnetic metals from the magnet into a separate pile.
Then we'll end up with our three piles.
We'll have non-metals, non-magnetic metals and magnetic metals.
So as I said, your process might look a little bit similar to this if you've written it out or if you've drawn it out, it might look a little bit different.
You may have thought of some extra steps that you wanted to put in place, but this is just an example answer to guide you.
So you could try your method to see if it works with these items. For example, you could have these non-metals that you've got either lying around in your house or at school, in the classroom, you've got some non-magnetic metals and magnetic metals.
So here are a few different examples and you could actually try your method to see if you'd be able to separate all of these items correctly.
Now we've come towards the end of our lesson now.
So we're going to do a summary of all the learning we have done today.
So magnetic materials are attracted to magnets and non-magnetic materials are not attracted to magnets.
Magnetic materials always contain metal, but not all metals are magnetic.
Iron is magnetic, so is steel, because it contains iron.
Most other metals are not magnetic and magnets are used to separate some materials at recycling centres and scrap yards.
Now we've come to the end of our lesson today and I would like to say that I'm so proud of you all.
We've done lots of excellent learning in this lesson and have been lots of things that we've done and you've all had a really good go at all of the tasks.
So I hope you have great rest of the day and I'm sure I will see you very soon.