How to make an egg float
Last weeks experiment showed how to make an egg shell disappear, this week we are showing you more science magic and showing you how to make an egg float.
What you need
- A bowl or large glass
- Tap water
- Table salt
- Egg
Instructions
- Fill the bowl or glass about 2/3 full with tap water.
- Drop the egg carefully into the bowl and observe it sinking to the bottom.
- Remove the egg and add salt, I added about 5 tablespoons then tried it again, adding more and more until it floated.
Here you can see the egg floating.
The Science Bit
Objects sink in water when they are more dense than the water, by adding salt we make the water more dense, once the water is denser than the egg it floats.
You could also try other objects and see what else you can make float. You can see more sinking and floating fun here.
This is one of the first science ‘tricks’ I remember from primary school days :0) its cool!
I love science experiments like this! Can’t wait to try it.
Let us know if you enjoy it!
Mmmh, I am sure I was told a floating egg is a bad egg.. is this how you can play tricks on people too? 🙂
Thank you for sharing on Kids Get Crafty!
Maggy
ha ha :-))
What a fun experiment. I can’t wait to put this experiment into our science lessons. I can’t believe how many fun experiments you do on your site. Educational and fun.
-Veronica @ http://watchmeplaynlearn.blogspot.com/
wow, thank you. That is so lovely to hear. x
That is so cool. I never knew you could do that (unless the egg was bad) Thanks for sharing on Monday Madness.
So glad you like it!
oh, you know I LOVE it! Keeping this in my back pocket for around Easter – perfect!!!
thanks for sharing on the sunday showcase! I pinned this!
I am doing this to show my class room 6.
Wow so cool
Had fun helping my daughter make it
This is the best prank to pull on my son. He is in collage and he is a great chef. knows everything! Thanks.