Isobel The further away from the magnet the clip chain gets the weaker the magnetic force is on those clips making them fall off.
Zahn The magnets have like magic powers that allow it to attract itself to metal objects
Anna The size of the magnet doesn’t make it a stronger magnet, the magnets have different strengths depending on what it is made of.
Room 9 examined the differences between the North and South poles of the magnet, observing that depending on how you used the magnets they repelled, attracted or had a stronger pull.
Alick: The north pole of the magnet is stronger because it is where the mountains are.
Maxwell: The South pole worked better but it grabs them towards both poles if you had more than 2 clips.
Riley: North Pole of the magnet is hot, the South Pole is cold, therefore the North is stronger.
Next step for Room 9 was to investigate how compasses work. Room 9 discovered that the earth has an internal magnetic field, this is how people can use compasses to find north. We tested this theory by exploring how magnets affect the compasses ability to find north. We then created our own compasses, by magnetising a needle, paper and water.
Both our home made compasses and the real compasses needles pointed in the same direction for north. Providing an even testing ground to observing the effect magnets have on the compasses ability to find north. Room 9 discovered that if the magnet is within 30cm of the bowl of water the needle will always move and point towards the magnet, demonstrating that the magnetic pull from our magnets are stronger than the earth’s magnetic field when the magnets are within this area.
Lilly: Once the needle is magnetized it attracts the needle in the compass
Nathan: Depending on how far away the magnet is from the compass depends on the degree we affect its ability to find north.
Izak: I can control the compass, look at this it is making the needle move west when i move the magnet to the side of the bowl.
Dallas: If I turn the magnet around it sends the needle away from me. Meaning the needle and the magnet are the same magnet pole.
Alick: If you rub the needle north to south 30 times you turn the metal into a mini magnet and it becomes a south pole magnet, making it attracted to the north pole of the magnet.
Haylen : The magnet controls how the needle sits and points depending on how far away from the magnet it is.
Amelia: The side of the magnet affects what the needle
Zoe B it is like magic it follows me and then it runs away from me.
Alick: The needle attacks the opposite poles, so if the south pole is near the needle it attracts the north pole of the needle towards itself.
Room 9 reached the understanding that opposites attract when working with magnets, that the north pole magnets will be attracted to the south pole magnets, and will be repelled away from each other if the same polled magnets were put together. How magnets work is no longer seen as magic, everyone has observed, recorded, experimented and concluded that magnets are predictable, depending on their reaction with other magnets, metal and compasses we are able to work out which magnetic pole the magnet is using. All students in room 9 can now explain how the earth’s magnetic field is important and used by navigators to find their way north.