Floating on Salt

My son said to me today ‘The Dead Sea is as deep as the Eiffel Tower is tall’. He loves watching Go Jetters often shares random facts with me. He went onto tell me ‘The more salt the easier it is for heavy things to float.’ Penguin also loves experiments and suggested we see if things would float in water with salt in, so that’s what we did.

We weren’t very technical about the experiment and didn’t get our coin to float. We just put a lot of salt into a small pot with water. Penguin managed to get a blue bead to float in salty water, even when pushed to the bottom, it still floated back to the surface. The same blue bead sank in regular tap water. He was very excited!

We’ve since found out (after watching YouTube videos of people floating on the Dead Sea) that stuff floats in salty water because the salt makes the water more dense. So our blue bead was less dense than the salty water but more dense than the tap water.

I was really glad this experiment worked and we got the outcome we expected. I’ve been getting tired of trying to do experiments that look good in a science book but in reality don’t work very well.

After watching some videos online we found that this experiment is really effective using an egg. So we had a go πŸ˜€

 

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23 thoughts on “Floating on Salt

  1. I always forget about trying science experiments with the kids on days that it’s either too hot to do anything outside or its to cold. This looks like a fun one. The problem with mine too is there’s 3 of them and it becomes crazy chaos to do anything crafty. Thanks for hostessing #FabFridayPost

    Liked by 1 person

  2. We watch Go Jetters all the time, I have to say it is one of the cartoons that I don’t mind. The boys want to watch the Mount Etna one over and over again though, I am trying to encourage them to give some other episodes a go ha ha! I love that you tried this experiment out, I am not sure it would occur to me to do the same. #FabFridayPost

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  3. This is awesome! Ethan’s school is going through stages of experimenting too. I will show this to him. I just love your boy face when the egg floats upward! lol! Precious! Thank you for co-hosting with me. #FabFridayPost Xx

    Liked by 1 person

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