Compléter Magnetism ClozeVersion en ligne Complete the Magnetism Cloze worksheet in your student packet! par Jennifer Deckard 1 ATTRACT FORCE NICKEL LINES FIELD NORTH BOREALIS POLES Magnetism is a that has the ability to push or pull some objects such as metals like IRON or . Magnets have two ends called . When you bring two magnets together , like poles REPEL each other and opposite poles . If you sprinkle iron filings around a magnet , they will form showing the direction of the magnetic force . These lines of magnetic force are called a magnetic . The closer the lines are together the STRONGER the force . The Earth generates a magnetic field as well . For centuries , sailors have used this magnetic field to help them find on cloudy days and nights using a tool called a COMPASS . The Earth's magnetic field also causes one of the wonders of nature , the AURORA , which is produced when charged particles in space are pulled into the Earth's atmosphere by the Earth's magnetic field .