1. Magnetism Mr. K 4th grade LJES

2. Magnets and electrictity Electrically objects will become a magnet and will either attract or repel A motor will make a fan move An electric motor charges electrical energy into energy of motion

3. Magnets and electrictity Electromagnets and permanent magnets are has poles that repel or attract other poles, making the motor move Electrical energy can be used for lghts, heat and motion

4. Magnets and electrictity Magnets will attract certain metals Permanent magnet: An object that stays magnetic for a long time Temporary magnet: Will lose magnetism after a short time Magnetic poles: Areas where the force of the poles is the strongest

5. Magnets and electrictity Earth’s center is made up mostly of molten iron As Earth spins, the iron particles line up, producing Earth’s magnetic field So, Earth is a gigantic bar magnet It is surrounded by a magnetic field with lines of force