Google+ Authentic Parenting: Two Funny Science Experiments For Kids

Tuesday, January 14, 2014

Two Funny Science Experiments For Kids

My wife has been writing for so long now on this blog and since the beginning I wanted to write something. Now the problem is that I am a very bad writer and not a good enough parent to give advice.
One thing I can maybe share with you is my passion for engineering and trying stuff out. In this first post I was thinking of sharing with you 2 science experiments you can carry out with your child if ever he or she asks for it.


Trying to explain density to your children?

Try this; I loved it when I was a kid:
You will need:
  • water
  • salt
  • an egg
  • a glass
Take the glass and fill it half with water. Add about 7 tablespoons of salt and mix very well. Now the tricky part: add water to the glass but do it very gently so it DOESN’T mix with the salt water. Once finished take the egg and put it very carefully in the glass without dropping it. And yes there it is floating on the salt water under the regular water.
Why: the density of salt water is higher then the density of regular water and the one from the egg is right in between

 

The power of static electricity.

We all know about static electricity. Sometimes we get a little shock when touching the car door or another person, or we might use a balloon to lift our hair. But here is the cool stuff:

You need:
  • a balloon
  • water
Go to your water tap with an inflated balloon. Gently turn the tap open, not drops but the smallest continuous flow you can get. Rub the balloon against your child's hair, enough to get it laden with static electricity. Now bring the balloon close to the water stream. What happens?
The stream gets bent towards the balloon. Your child really has some magical hair hasn’t he?
Sorry but no, what happens is that the balloon - by rubbing against the hair - gets negatively charged by transfer of electrons. Water is neutral because it contains the same amount of positive and negative charges. When bringing a negatively charged object close to it you attract the positive particles.

Hope you will enjoy these! Got some science question you want to experiment with? email mamapoekie at yahoo dot com and I will try to solve it with you

David

Image: By Bill Branson (Photographer) [Public domain or Public domain], via Wikimedia Commons


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