You will be amazed when you fill a plastic zip-lock bag with “blood” and poke sharp skewers through, only to find that the bag doesn’t leak!  All you need is a ziplock bag, water, food coloring and wooden skewers.   Heavy-duty ziplocks work best!  Fill a quart-sized ziplock bag with water, add a few drops […]

We turned our kitchen into a Halloween science lab this morning for the Fox9 news. The kids had a blast!  Here’s one of the segments on how to make “Magic Potion”:

We’ve updated our Halloween Science Experiment Collection! Click here for 10 more awesome Halloween science projects, including Frankenworms and Alien Monster Eggs! Here are two fun Halloween science projects that will amaze and entertain kids! Mad Scientist’s Green Slime is a homemade polymer that’s as much fun to play with as it is to make. […]

Write spooky messages for your friends with invisible ink! Just paint lemon juice on printer paper with a Q-Tip, let it dry and reveal the message using heat from a candle flame via oxidation!  Adult supervision is required when using candles. You can also reveal your message using a very hot light bulb, but we had […]

Use hydrogen peroxide, dish soap and dry yeast to make a Jack-O-Lantern ooze beautiful green bubbles! (*Don’t forget the safety goggles. Adult supervision required) Click here to watch the chemical reaction in action! Ingredients: -large bottle of 6, 10 or 12% hydrogen peroxide, or 20, 30 or 40 volume hydrogen peroxide clear developer (found at […]

Make mini “lava lamps” from water, baking soda and oil to test whether candy contains citric acid! The science behind the fun: Oil floats on water because it is less dense. When citric acid in candy combines with baking soda, a chemical reaction occurs which produces carbon dioxide gas bubbles. As the bubbles move up […]

With a few simple pantry items, you can throw together some serious science fun. Here’s a list of project you can do using things from the pantry and craft drawer. Just click on the blue links for instructions! Or, head outside to do some fun outdoor science! You can find most of these projects on […]

Eggs and sugar have great chemistry. Mix them together to create these sweet, crunch Halloween treats with a recipe from my upcoming book “Kitchen Science Lab for Kids: Edible Edition.“ They’ll take a few hours to bake, so plan ahead for this fun, edible science project. Meringues are simply egg whites whipped into sugary foams.  As […]

We had a great time playing with dry ice on WCCO TV this morning. I showed viewers how to make spooky Halloween decorations (hot water, food coloring and dry ice), carbonate beverages, inflate a balloon, and even make a spoon “sing.” Dry ice is literally really cool, which is why you have to wear gloves […]

If I give you glue, water and Borax, can you come up with a recipe for perfect polymer slime based solely on what you know about the science?   Last week, I did hands-on science with 150 third graders at Success Beyond the Classroom’s Creativity Festival at the University of Minnesota. As they came into the room, I […]