Magnetism – Making Magnets WALT: State which materials are magnetic and describe how to make a magnet I must be able to state the 4 materials that can be magnetic I should be able to describe how to make a magnet I could accurately draw a magnetic field around a bar magnet (with arrows)

Magnetism

Magnetic or not? Iron Aluminium Magnesium Cobalt Copper Steel Nickel

Lesson Outcomes What materials are magnetic? Low level What two things can magnetic poles do? What are domains? How can you make a magnet? What is a magnetic field? Draw and explain the magnetic field around a bar magnet. How do compasses work? High level

Bar Magnet S N

Like poles repel, unlike poles attract Use the magnets on your desk to answer “attract” or “repel” to the next slide…………….

Attraction or Repulsion?

How could you turn a piece of iron into a magnet?

S N

Draw and label the points of a compass.

In fact, if you hang your bar magnets from a piece of string, they will align themselves North-South You can do this if you have time in a minute…

Earth – a Giant Magnet Animation

You are now going to make your own compasses You have 5 minutes to make a compass from your iron nail Write down what you did and draw a diagram (like Step 2 – on right)

Magnetic Fields Explain

Please turn to page 310-311 How could we summarise this? Magnetism is a force Iron filings can show us the magnetic field Let’s have a go at finding the magnetic field of your magnets with iron filings. Draw a diagram like the ones on the slides below. MAKE SURE YOU MARK ON ARROWS IN THE CORRECT DIRECTION

Lesson Outcomes What materials are magnetic? Level 3 What two things can magnetic poles do? Level 4 What are domains? Level 5 How can you make a magnet? Level 5 What is a magnetic field? Level 6 Draw and explain the magnetic field around a bar magnet. Level 6 How do compasses work? Level 7

Do you think screwdrivers should be magnetic? Why?