Pupil outcome: I can explain how magnetic force was discovered by people throughout history, including important scientists. Key learning points: - A magnet is a metal that attracts some other metals - Not all metals are magnets, but all...

A puppy plays with a bolt, but it gets magnetized and is carried away by a crane truck. The puppy chases it to a construction site, where the bolt ends up in a dump truck headed for the landfill. The puppy doesn’t know what the bolt is...

Today, a car transporter is bringing 5 race cars to the track, but when a fire engine rushes by, the cars fall off! How will they get to the racetrack now?

The Stern-Gerlach experiment, which took place in 1922, was the most important proof that electrons have spin and that they have a spin quantum number. A stream of silver atoms was sent through an experiment using a magnetic field...

This easy video tutorial will show you how to use an Arduino.

Research has found some human brains can pick up on rotations of geomagnetic-strength fields as evidenced by drops in alpha wave power following stimulus.

Cathode Rays: Key Properties

• Straight-Line Travel: Cathode rays travel in straight lines, casting sharp sha
dows.
• Negatively Charged: Composed of negatively charged particles, specifically electrons, deflected by...

Ferromagnetic materials, such as Fe and Ni, exhibit permanent magnetism even when the magnetic field is removed. These materials are formed by the spontaneous alignment of magnetic moments due to unpaired electrons in the same...

Materials can be classified based on their response to external magnetic fields. Diamagnetic materials are weakly repelled by external magnetic fields, while paramagnetic materials are attracted but lose their magnetism in the absence...

Did you know that there is metal in your food AND in your body? Watch Dr. Boyd prove it by extracting iron from breakfast cereal. Minute 0:31 – Introduction Minute 0:56 – What you need Minute 1:26 – Explanation Minute 2:07 – Safety...

How do electromagnets differ from permanent magnets, and what are they used for? Physics - Electricity And Circuits - Learning Points. An electromagnet is created by running an electrical current through a coil of wire. An electromagnet...

The generation of a voltage in a conductor when placed within a changing magnetic field.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

A demonstration of how hi-fi speakers use a clever combination of electronics and magnetism to convert electrical impulses into sound waves, which our brain then interprets as music. Physics - Electricity And Circuits - Learning Points....

We create a simple electromagnet by coiling wire around a nail and passing current through it. The magnetic field around the electromagnet creates similar patterns in iron fillings to a permanent magnet. Physics - Electricity And...

We compare the properties of three iron mixtures: iron and water, iron and oil and a ferrofluid - a mixture of compounds containing iron and oil. First, we look at how iron filings behave when mixed with water and then oil. We then hold...

We use two magnets and a set of scales to examine magnetic field and strength. One magnet is attached to the scales and a second is lowered towards it. When opposite poles are facing each other, the weight on the scales decreases as the...

We examine the different properties of iron and sulfur when they are mixed and when they are chemically combined. When iron and sulfur are mixed they retain their individual properties. When they react chemically to form iron sulfide...

What are the properties of magnets, and why are they useful to us? Physics - Electricity And Circuits - Learning Points. A permanent magnet is a piece of metal that possesses a magnetic field. The magnetic field is strongest at the...

The identical poles of two magnets are pushed together … what happens next?
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A Twig Tidbit Film - What happens next? A short section of film...

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Physical processes - Elect<br<b<br/>r/>/>ricity and magnetism - Magnetism


A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.

Find out how electromagnets power the world's fastest train.
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Find out how magnetic and non-magnetic materials are separated at a junkyard using a giant magnet.
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Learning Points
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Discover how a compass works and why the needle always points north.
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Earth has its own magnetic...

This video explores cause and effect relationships of magnetism, as well as electric interactions. The program explains how students can conduct an activity that illustrates how magnets exhibit forces on specific types of matter, and...