write some activities that you observe in your team to demonstrate magnetic force
Answers
Answer:Playing with magnets is a safe and fun way to introduce students to physics. Simply put, magnetism is a force that attracts or repels magnetic objects. Magnets produce an invisible magnetic field and attract objects made of nickel, iron and cobalt. They also have two poles - the North Pole and the South Pole - and the opposite poles of two magnets always attract each other.
Even the earth is magnetic, as it is jam-packed with molten rocks rich in magnetic materials such as iron. Earth behaves as a giant magnet, causing the north pole of a magnet to point roughly toward its own north pole.
Are you ready to explore magnetic forces with your students? Try the simple activities below to get started:
1. Repel or Attract?
Want to teach the basics of magnetism? Start by having students test to see which items or materials are magnetic and which ones are not. They can simply venture around the classroom to begin exploring. When testing two magnets, they can also identify their two poles (north and south) by observing whether the magnets attract or repel each other. To get started, check out this First Experiments Magnetism Set. It comes with a variety of magnets, including a super magnet, magnetic marbles, a horseshoe magnet and a compass magnet.
2. Make Your Own Compass
Before there were navigation systems and Google Maps, people would use a compass if they got lost or to find their destination. The metal needle in the compass points to “magnetic north,” as it aligns with the Earth’s magnetic field. When using a compass, first make sure the needle lines up with the north-south axis and you can easily determine which way you need to go (with the help of a map), whether it’s north, south, east or west.
You can make your own compass to observe how this magnetic tool works! To begin, you will need the following materials:
Sewing needle
Magnet (with a “north”/“south” distinction)
Wax paper
Scissors
Red Sharpie marker
Bowl
Water
When you’ve created your simple compass, place it in a bowl of water, allowing it to float on the surface. Once floating in the water, Earth’s magnetic field (caused by the magnetic materials nickel and iron in the Earth’s core) pulls at the opposite poles of the needle and aligns it with the north-south axis.
Check out the Ultimate Vortex Generator to explore magnetism, vortexes, centripetal force and more!
3. DIY Magnetic Slime
Slime is all the rage these days, and magnetic slime is double the fun! To conduct this experiment, you will need the following items:
8-oz white school glue
Borax
Large mixing bowl
9-oz plastic cup
Measuring cups and spoons
Zipper-lock plastic bag
Iron filings
Neodymium magnet
Water
Spoon
Dinner plate
Once you create the slime and smooth it evenly on the plate, bring the magnet close to the surface and observe what happens. The iron filings mixed into the slime causes it to be magnetic, and the slime will spring upward to grab the magnet. You can even use the magnet to create mini volcanoes in the slime. Also, note that the iron filings never leave the slime. Although the magnet is strong, the slime holds on to the iron filings by adhesion, a force that holds molecules of different substances together.
Magnetism is a cool phenomenon that students will love exploring! Try these activities to introduce them to the science - and fun - of magnetic forces.
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