Fun with Magnets!


This is one of my favorite toys. All I have to do is hold them like this … and
they stick together, without any glue or tape! Maybe you have a toy like ours, one that has
parts that stick together. Or maybe you have letters that stick to your
refrigerator, or to a whiteboard. Did you ever wonder why they don’t just
fall to the ground? Well, it’s because they use magnets. A magnet is something that can put a special
kind of force on something else. A force can be a
push or a pull. A lot of the time, we think about a magnet
as attracting, or pulling on, something else, The magnets that are in my toy pull on, or,
‘attract’, this little ball, and when they get close enough, they stick to each
other! If you have a magnet at home, you can see
how it attracts this type of paper clip. If I move the magnet slowly toward the paper
clip … the magnet pulls on the paper clip until the two objects are completely stuck
together. And once they’re stuck, they stay stuck,
until I put a force of my own on the paper clip by pulling them apart! You might have noticed that I didn’t even
have to touch the magnet to the paper clip to get them to stick together! That’s because there’s an invisible area
all around that magnet that can attract certain things, called the magnetic field. You can see how strong a magnet is by seeing
how close you have to get to the object before the magnet starts to pull. If your magnet is pretty strong, it will be
able to pull on objects that are farther away than weaker magnets. And a magnetic field can do some pretty neat
things. Check this out! If I put my paper clip on top of the paper,
and my magnet below the paper … I can move the paper clip without using my
fingers at all! That’s because the invisible magnetic field
pulls on the paper clip right through the paper. Even though the magnet isn’t actually touching
the paper clip, it’s still pulling on it, and that’s enough to make the paper clip
move! But just because something is attracted by
a magnet, that doesn’t mean it’s a magnet itself. For example, we just saw that my magnet sticks
to this paper clip. But the paper clip won’t attract or stick
to another paper clip! That’s because it’s the magnet that’s
special, and doing the attracting. Now, magnets don’t attract all things. For example, this magnet doesn’t stick to
me, but it does stick to Squeak’s nose! The magnet also isn’t attracted to the table. But we already know it attracts the paper
clip! Hmmm … I wonder what else this magnet will
attract? I have some spoons I picked up from the Fort’s
kitchen. Let’s play a game: I’ll hold up a spoon,
and you and Squeaks can guess if the magnet will attract it or not! Okay, first, let’s try this wooden spoon. What do you think, Squeaks? [Squeaks guesses no] You’re right, it doesn’t attract the wood. How about this plastic spoon? [Squeaks guesses no again] You’re right again ! Magnets also don’t
attract plastic. How about … this spoon? [Squeaks guesses yes] They stick! So, let’s see … of all the things we tried,
the magnet only was attracted to the little ball, the paper clip, and the spoon! And there’s something they all have in common
— something that makes them similar enough to be attracted to my magnet. What do you think, Squeaks? Yeah! They’re all made of metal. Things that are metal are usually pretty shiny,
and they’re often hard, and kind of heavy for their size — like how the metal spoon
is heavier than the plastic spoon, even though they’re around the same size. A magnet attracts things that have metal in
them, but only certain kinds of metal — not all kinds. Our magnet attracts this paper clip, but not
this coin, even though they’re both made of metal. One type of metal that is attracted to magnets
is called iron. People use iron to make lots of different
things, like fences and gates; some kinds of pots and pans; and lots of tools, like
nails and screws. And when a magnet sticks to a fridge, that’s
because there’s iron inside the door, even though you can’t see it! People use metals like iron to make something
else, too: iron is one of a group of special metals that people can make into magnets. Iron can do both — it can be a magnet, and
it can be attracted to a magnet! If you’re curious about what other kinds
of things are attracted to magnets, you can ask a grownup to help you experiment! If you have a magnet, you can hold it up to
different kinds of things, and see if you can guess what the magnet will attract! Thanks for joining us! If you want to keep learning and having fun
with Squeaks and me, hit the subscribe button, and we’ll see you next time here at the
Fort!

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Comments

  1. 🔴🔴🔴 Why do these idiot presenters talk in the most ridiculous manner? Is she on acid? What makes them believe that kids should be addressed like idiots? Do they simply copy other shows without thinking what is best?🔴🔴🔴

  2. Could you please make a video about G force and velocity.

  3. I love your videos!😎😋😊☺️😄😃😀😁😆😅🤣☺️😊🙂😉😌😍😘😗😙😚😋😜😝😛🤗😺😸😹😻👧🏻👩🏻‍🎤👩

  4. ่เกะัหพัปหหเเี

  5. I'm involved in running a "STEM" club at school and we use quite a few of your videos.  Thanks!   Just one critique: the kids find it much easier to understand if you pause after each sentence instead of rushing on and on without pausing.

  6. Differ among ferromagnetism , dimagnetism and paramagnetism and how they r related to unpair and pair electrons.

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