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JudyMagnets can only attract objects that contain iron, nickel, or cobalt since these elements are magnetic. Pins are usually made of iron or steel, which is why they can be attracted to magnets. Matches are typically made of materials that are non-magnetic, such as wood and phosphorus, so they are not affected by magnets.
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Why can a magnetic attract pins but not matches?
Magnetic materials like pins have unpaired electrons that align with an external magnetic field, causing attraction. Matches do not contain magnetic properties, so they are not affected by magnetic fields.
A mixture of pins and toothpicks?
A mixture of pins and toothpicks can be separated by using a magnet to attract the pins and leaving the toothpicks behind. Alternatively, the mixture can be sifted through a sieve to separate the larger pins from the smaller toothpicks.
What is the meaning of magnetic board?
A magnetic board is a writing surface made of a material that magnets can stick to, typically steel or iron. It is often used for displaying messages, notes, or pictures using magnets rather than pins or adhesives. Magnetic boards are commonly used in offices, classrooms, and homes for organization and communication.
How do you separate steel pins and sand?
The best way of separating steel pins from sugar is through the method of filtration: filtering the sugar through mesh or grating, which leaves behind the steel pins which aren't small enough to fit through the holes.
Who is said to be playing at nine pins when there is thunder?
It is said that the devil is playing at nine pins when there is thunder.
