ScienceDemos.org
  • Physics
    • Motion
    • Waves
    • Energy
    • Force and Gravity
    • Light and Colour
    • Simple Machines
    • Density
    • Sound
    • Magnetism
    • Pressure
    • Heat
    • Electricity and Electrostatics
    • Air and Fluids
    • Nuclear / Particle Physics
    • Van de Graaff Generator
  • Chemistry
    • Gases
    • Particles and States
    • Crystals, Salts and Ions
    • Atoms and the Periodic Table
    • Chemical Quantities and Calculations
    • Water, Solubility and Surface Tension
    • Elements, Compounds and Mixtures
    • Catalysts and Enzymes
    • Reaction Rate, Equilibrium and Thermochemistry
    • Separating Mixtures
    • Combustion
    • Organic Chemistry
    • Metals and Alloys
    • Explosions
    • Materials and Polymers
    • Redox
    • Colour Changes
    • Food Chemistry
    • Electrochemistry
    • Acids and Bases
  • Biology
    • Ecosystems and the Environment
    • Cells and Microscopes
    • The Brain and Body Coordination
    • Plants
    • Disease
    • Body Systems
    • Classification
    • Reproduction
    • Dissections
    • Genetics and DNA
    • Natural Selection and Evolution
  • Other Science
    • Scientific Method
    • Dry Ice
    • Rocks, Minerals and Fossils
    • Forensics
    • Liquid Nitrogen
    • Mining and Resources
    • The Solar System
    • Science Show Demos
    • Plate Tectonics and Volcanoes
    • The Universe
    • Demos For Special Occasions
    • Global Systems and Weather
  • About
    • About ScienceDemos.org
    • Safety
    • Login
    • Contact
    • Privacy

PrintPrint RecommendRecommend

Magnetism

Total 13 itemsDisplaying 1 - 13 items
Title
Materials
Difficulty
Safety

Build a Simple Speaker

1
2
1
A speaker is build from a coil of wire, a strong magnet and other simple materials, or even just a coil of foil on cardboard and a magnet.

Diamagnetic Levitating Magnet

3
3
2
Bismuth is melted into discs, these are set up with neodymium magnets to make one of the magnets levitate. Doesn't require superconductors.

Ferrofluid

3
2
1
A variety of demonstrations show the properties of Ferrofluid.

Franklin's Bells

2
2
3
A bell or can is connected to a high voltage power source, another to ground. A ball of metal moves between them as it alternates its charge.

Gauss Rifle/Gun

2
2
2
Neodymium magnets and ball bearings are arranged in a line, rolling another ball bearing in causes other to shoot away.

Lenz's Law - Magnet Down Metal Tube

2
1
1
A neodymium magnet is dropped down a copper or aluminium tube, its fall is slowed because of Lenz's law - it induces a magnetic field.

Listening to Magnetism

2
2
1
A coil of wire is connected to an amplifier with a speaker. Moving a magnet past the coil induces a current which can be heard.

Magnetic Heat Engine

2
2
2
Nickel is suspended from a pendulum, and attracted by a strong magnet. Heating the nickel with a candle causes it to lose its magnetism and swing.

Magnetic Slime / Silly Putty

2
2
2
Slime or silly putty is made and iron filings, iron oxide powder or photocopier toner is added. It will then be attracted to a neodymium magnet.

Making a Magnetic Compass

1
1
1
A compass can be made by magnetising a needle with a magnet. It can then be floated on water to move.

Making Ferrofluid

3
2
2
Ferrofluid (fluid that is magnetised by a magnetic field) can be made from a variety of materials.

Simple Electromagnet

1
1
1
Insulated wire is wrapped around an iron rod or nail and connected to a battery, making an electromagnet which can be used to pick up iron objects.

Simplest Electric Motor

1
2
1
A very simple electric motor is made from a battery, magnet and paper clip. Other versions use coiled insulated copper wire.

Materials
1: Easy to get from supermarket or hardware store
2: Available in most school laboratories or specialist stores
3: Requires materials not commonly found in school laboratories

Difficulty
1: Can be easily done by teenagers
2: Can be done by science teachers
3: May require a more experienced teacher

Safety
1: Minimal safety procedures required
2: Some safety procedures required to perform safely
3: Only to be attempted with adequate safety procedures and trained staff

Back to Top

© 2018 ScienceDemos.org