Earth has a magnetic field that is generated by the movement of molten iron in its outer core. This magnetic field helps protect our planet from harmful solar radiation and guides compass needles to point north. The strength of Earth's magnetic field has been decreasing over time and periodically reverses its polarity.
The science which records facts about the Earth's surface is called geology.
Most magnetic alloys are based on one or more of the following:ironnickelcobaltHigh field strength modern alloys also contain rare earth metals.
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Ferro-magnets, permanent magnets, temporary magnets, and electromagnets. Ferro-magnets are magnets that are magnetic at a higher temperature than room temperature. do not quote me on that. permanent magnets are magnets that are always magnets, they are the kinds you use a lot. Temporary magnets are things that are magnetic in an extrenal magnetic field. Last but not least, electromagnets. Electromagnets are coils of wire around a cobalt, nickel, or iron. When ou run electricity through the wire, the core and wire become magnetic.
No, magnets are not metal. Magnets are objects that produce a magnetic field, which can attract or repel certain types of metals, but they are typically made from materials like iron, nickel, or cobalt.
a magnets attracts repels objects
Yes, magnets are essentially metal ores that can be found many places in Earths surface.
actually nickel, cobalt, and several rare earths are used as magnets too, but iron is the cheapest.
All magnets are mainly iron, nickel, or cobalt. Other minerals may be added to add strength or "permanancy" : aluminum, rear earths, magnesium.
Kids might like to know that magnets have two poles (North and South), that opposite poles attract, that magnets attract certain metals but not all, and that magnets are used in the creation of electricity.
Geocentric((:
Also called the mesosphere
Also called the mesosphere
Earth's magnetic field created by earths magnets deflects cosmic rays which damage our biosphere.
Here are some fun and educational facts about magnets for kids to learn: Magnets have two poles - a north pole and a south pole. Opposite poles attract each other, while like poles repel each other. Magnets can attract certain metals like iron, nickel, and cobalt. The Earth itself acts like a giant magnet, with a north and south pole. Magnets are used in everyday items like refrigerator magnets, compasses, and MRI machines. Magnets can create a magnetic field around them, which is invisible but can be felt by placing iron filings near the magnet. These facts can help kids understand the basics of magnetism and its applications in the world around them.
The science which records facts about the Earth's surface is called geology.
Any magnet will always align itself to north south direction of earths magnetic field. Magnetic needle will always be perpendicular to the direction of current. Stronger magnets attracts weak magnets towards itself if the weak magnet is placed in stronger magnets magnetic field.