MIDWEEKLY: Who Bites Harder... Crocodiles or Sharks?🦈🐊
Fun Kids Science Weekly
Fun Kids
4.4 • 1.5K Ratings
🗓️ 22 October 2025
⏱️ 13 minutes
🧾️ Download transcript
Summary
You’ve been sending in your questions, and this week…
Leo asks how magnetic fields are created, Elijah wants to know why Egyptian mummies don't rot, Audrey's asking who has sharper teeth... crocodiles or sharks? And Daniel's been wondering if our Sun will ever explode!
And Professor Pulsar teaches Sam all about the structure of our planet and finds out that the earth’s crust is not made up from jam or cats!
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Transcript
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| 0:00.0 | Hello Explorer, welcome along to a brand new bonus episode of the greatest podcast in the universe. |
| 0:10.0 | It's time for the Fun Kids Science midweekly. My name's Dan, you and me, we always search |
| 0:17.5 | the solar system for those science secrets that are stuffed and squirrilled away. |
| 0:23.3 | And this is a question special. |
| 0:24.9 | If you ever have anything scientific that you want answered, make sure you leave it as a voice note for me on the free Fun Kids app. |
| 0:31.3 | You can do it at FunKidslive.com too. |
| 0:34.0 | This week, we're hearing about rotting mummies, exploding suns and sharp teeth. So let's |
| 0:40.2 | get straight to it then. First question is from Leo. What do you have, Leo? Hi, Dan. My name's Leo. My |
| 0:46.9 | question is, how are magnetic fields created? Leo, thank you for sending that in. How are magnetic fields created? Well, a magnetic field |
| 0:58.1 | is an area around something where those forces, those magnetic forces, can be felt. So something |
| 1:07.9 | in that space, in that field, could be attracted or repelled by the magnetism. |
| 1:13.6 | Right, there are two main ways that a magnetic field can be made. One is with electric charges. So when an |
| 1:22.1 | electric current flows through a wire, maybe powering your telly, whatever it is, this creates a magnetic field around the |
| 1:29.6 | wire. Or another way is when electrons move around in atoms, which they're doing all the time, |
| 1:35.8 | and they create a magnetic field. Remember, it's always the motion of electrons moving that creates |
| 1:41.0 | magnetism. Electrons are tiny little subatomic particles and they move around the |
| 1:47.1 | outside of the centre of an atom. So they're always moving, so they're always creating an electrical |
| 1:55.7 | and then magnetic field. So the Earth has a magnetic field because the core, the inside of our planet, |
| 2:02.4 | has a lot of iron and nickel. Those are metals. Those are good conductors of electricity. |
| 2:07.2 | And, well, the electrons in those elements, in the atoms, they're always moving around. So they |
| 2:12.7 | create that magnetic field, which is why we have a north and the south pole, which means it can affect |
| 2:17.8 | things that are magnetic. So there's a lot going on with electrons, electric and magnetic fields. |
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