Magnetism Making Magnets WALT State which materials are

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)

Iron Magnesium Copper Aluminium Cobalt 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

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 • What two things can magnetic poles do? Level What are domains? Level • How can you make a magnet? Level • What is a magnetic field? Level 3 4 5 5 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?