Ralph Waldo Emerson

Men love to wonder, and that is the seed of science.
LIM SZU CHING EL-N05 D20102045337


Fun experiments (1) Floating Egg!

Make an Egg Float in Salt Water
An egg sinks to the bottom if you drop it into a glass of ordinary drinking water but what happens if you add salt? The results are very interesting and can teach you some fun facts about density.

What you'll need:

  • One egg
  • Water
  • Salt
  • A tall drinking glass
  • Instructions:
    1. Pour water into the glass until it is about half full.
    2. Stir in lots of salt (about 6 tablespoons).
    3. Carefully pour in plain water until the glass is nearly full (be careful to not disturb or mix the salty water with the plain water).
    4. Gently lower the egg into the water and watch what happens.

    What's happening?
    Salt water is denser than ordinary tap water, the denser the liquid the easier it is for an object to float in it. When you lower the egg into the liquid it drops through the normal tap water until it reaches the salty water, at this point the water is dense enough for the egg to float. If you were careful when you added the tap water to the salt water, they will not have mixed, enabling the egg to amazingly float in the middle of the glass.

    1 comment:

    1. Hi Jacklyn,

      I hope this comment/email finds you well. I recently helped build an infographic about Amazing Egg Facts and thought you might like to use it on Cikgu Lim. Here's a link to the infographic(http://www.jesrestaurantequipment.com/jesrestaurantequipmentblog/amazing-interesting-egg-facts/).

      There's code below the IG that helps you post it, but if you need another image size or would like some help, just let me know. : )