May 17, 2012

Simple Science Experiments

Here are a few fun experiments I have done with my kids this year.  It's always fun to experiment and see the reactions that ordinary things in your house can make.
Foamy Fountain (Elephant's Toothpaste):
  • A clean plastic soda bottle or water bottle
  • 1/2 cup 6% solution hydrogen peroxide liquid (Get this from a beauty supply store - I used regular 3% solution and it worked well, but 6% gets even foamier)
  • 1 Tablespoon (one packet) of dry yeast
  • 3 Tablespoons of warm water
  • Liquid dish washing soap
  • Food coloring
As you can see from the picture, foam will overflow from the bottle, so be sure to do this experiment on a washable surface, or place the bottle on a tray.

1. Pour the hydrogen peroxide into the bottle.
2. Add 8 drops of your favorite food coloring into the bottle.
3. Add about 1 tablespoon of liquid dish soap into the bottle and swish the bottle around a bit to mix it.
4. In a separate small cup, combine the warm water and the yeast together and mix for about 30 seconds.
5. Pour the yeast water mixture into the bottle (a funnel helps here) and watch the foaminess begin!

Soap Science:
Microwave a bar of soap for about a minute and a half- it will grow into a crazy shape.  Watch as it is microwaving.

Rubbery Egg Experiment:
Put an egg into a cup and cover it with white vinegar. After 24 hours, replace the vinegar with fresh vinegar, then leave it for a few more days (about a week), and be amazed! You have to handle your egg very carefully...

Rainbow Milk:
Pour milk onto a plate with lips or very shallow bowl. place 3-4 drops, each a different color, of food coloring close together in the center of the plate. Then, put a q-tip into the center. What happens?
Then get another q-tip covered in dish soap and try putting it in the center again. What happens now? even I had to get my own plate and try for myself...SO COOL!!!

Self-Inflating Balloon:
In a clear plastic bottle, pour about an inch of vinegar. Pour 1 Tbsp baking soda into a balloon, using a funnel. Attach the balloon around the mouth of the bottle and dump in the baking soda. The gas from combining the two will cause the balloon to inflate. 

Karyn is a mom to three young children. She is in her 2nd year of homeschooling. She grew up in FL and got a degree in Home Ec. Ed. from BYU. She taught in public school for a few years before having kids. Karyn loves learning along with her kids! Some hobbies: music, cooking, sewing, reading, & gardening. She runs two different blogs- one focused on homeschooling- Teach Beside Me, the other is a food blog.

2 comments - Add a comment below -:

Liz said...

These are cool! Thanks for sharing. I'm "pinning" this for later. :)

Cam said...

Just did these experiments, minus the egg, today and my son LOVED them. Thanks so much! We'll try the egg next.