Exploding bags with baking soda and vinegar-science lesson. They take off like rockets!
No helium needed to fill balloons for parties.....just vinegar and baking soda!
Copycat chick-fil-a nuggets! Yep, they are awesome! A couple surprise ingredients in there;) kids will love these
Awesome hands math journals site with all kinds of ideas for many ages.
3D hand portrait: I tried this using colored pencils in black, blue, purple, and orange. It worked well and was a big hit with my children. If using crayon or pencil, it helps if you shade the area where the curve and straight lines meet a little darker. I can think of all kinds of ways you could use this. Great art lesson or rainy day activity.
Soak sliced apples in ginger ale or lemon-lime soda for 10 minutes. Then you don't have to buy those packaged sliced ones. Lunchbox!
HOW AWESOME.... instructions to make ornaments from legos
Storm troopers - A day in the life. Jahna Dooling, this reminds me of your twins!
Blobs in a Bottle (The World's Easiest Lava Lamp) by sciencebob: Here is all you need: A clean 1 liter clear soda bottle 3/4 cup of water Vegetable Oil Fizzing tablets (such as Alka Seltzer) Food coloring