Posted in Gelatin, Optics on April 2, 2009 | Leave a Comment »
About two weeks ago we tried the jello fiber optics experiment but it hardly worked. A week ago, I found another recipe to make it, and this is what we used:
Purpose: To investigate how fiber optics work by using gelatin and a laser pointer.
Materials:
For a 5×9 inch loaf pan
2 packages of light colored Jello [...]
Posted in Geology on April 2, 2009 | Leave a Comment »
I spent a great deal of time one day recently trying to identify some of our rocks and minerals from our rock collection and have come up with a way to help the girls know what they are looking at:
So after looking online for to compare to, I was able to identify many of our [...]
Posted in Chemistry, Uncategorized on April 2, 2009 | 2 Comments »
I love a good science magic trick and this one is really easy and cool to do.
I got this penny chemistry experiment from Anne Marie Helmenstein, Ph.D. at About.com:Chemistry. Her explanations follow the steps we used.
Materials:
20-30 dull pennies
1/4 cup vinegar (white or apple cider vinegar – both contain acetic acid)
1 teaspoon salt (sodium chloride)
1 [...]
Posted in Chemistry on April 2, 2009 | Leave a Comment »
Materials
Balloon
Small funnel
Baking soda
Vinegar
Small clean empty 20 oz plastic bottle
Method
Using the funnel, add 3 teaspoons of baking soda to the balloon.
Fill the bottle 1/3 full with vinegar
Carefully fit the balloon over the bottle opening without dropping in the baking soda
Hold up the balloon and let the baking soda drop into the vinegar
Watch as the baking [...]
