Science Experiments

If you’ve had fun reading about Steve Spangler’s science adventures in this blog, you should check out his extensive experiment library.  SteveSpanglerScience.com offers hundreds of ever-changing, ever-growing free experiments!

From floating, growing Ivory Soap to finding the iron in a dollar bill, you are sure to find just the right experiment that uses materials you have right in your home.  This library represents all of Steve’s most amazing, most requested experiments from his 9NEWS television segment as well as other appearances throughout his career.

May 9, 2012

What’s That in the Sky? Is it a Bird or a Plane or a UFO? Nah, It’s Science!

If you were at Weather and Science Day last week, you saw our giant flying sausages, the Solar Bags.

Solar Bags are 50 feet long and are made from a very thin plastic. When inflated, the black plastic heats the air up inside the Solar Bag. The air expands and the bag floats in the air. Our fabulous and dedicated Steve Spangler Science crew ran across the outfield at Coors Field last week to fill the balloons up with air. We filled the stadium with Solar Bags.

Steve also gave 800 teachers, cub scout and girl scout leaders Solar Bags to take back to their group for a hands-on learning experience. If you are a teacher or educator that received a Solar Bag, we have a homework assignment for you. Give your students or kids a little lesson in the

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May 7, 2012

Instant Ice – Super Cold Water Turns to Ice Before Your Eyes

We recently came across this video by SooToday.com‘s reader Phil Sabine making its rounds on the Internet. In the video, Sabine takes a cold bottle of water, turns it upside down and then taps the bottom. The water instantly begins freezing from the bottom down to the top.

Is it magic? A slight of hand? Or did he switch the liquid in the bottle to something other than water?

The answer to all of the questions is no, there is no trick. The solution lies in the science behind the freezing temperature of water and how ice crystals form. This is also referred to as Supercooled Water.

Everyone knows the freezing temperature of water is 32 degrees Fahrenheit or 0 degrees Celsius. When this temperature is reached, the water molecules freeze by forming ice crystals. It’s easier for the water molecules to turn to ice on top of already formed crystals.  Ice crystals build on existing ice crystals to eventually freeze the entire bottle of water.

What starts the freezing ice crystal process? 

The process of starting the ice crystals is called “nucleation.” This starts from an impurity or scratch or piece of dust on the container holding the water. In this case, the

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April 18, 2012

The Science of Tornadoes

Tornado season and extreme weather have come early to parts of the midwest already this year. Tornadoes cause widespread damage and loss of lives. But what is the science behind what causes a tornado to form?

Tornadoes are funnels of spinning air. The winds may reach 250 (400 kilometers) an hour while they bounce and run across the land. They usually form during thunderstorms or supercells. A tornado forms when changes in wind speed and direction cause a horizontal spinning effect within the cloud. Rising air moving up through the cloud tips it vertically.

A funnel cloud does not reach the ground; a tornado touches the ground. The twisters don’t last for long, but can travel at speeds of 10 to 20 miles per hour on the ground.

Even though tornadoes occur around the world, the United States is a hotspot, especially along an area

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April 17, 2012

Eating Nails for Breakfast – Is There Really Iron in Your Cereal?

What kind of cereal do you eat in the morning? Are you a Fruit Loops kind of person or more serious, like a Total cereal eater? Whatever you eat, turn the box to the side and look at the ingredients. If your cereal is “iron fortified” what does that mean? Is there really iron in your flakes?

Here’s an easy way to test for iron – take a bowl and pour a little water in it. Float a few flakes on the water. Then take a powerful magnet, like a Neodymium Magnet and without touching the flakes, try to make them move and follow the magnet through the water.

That proves the magnet is having an effect on the flakes, but is it really iron that is causing the attraction?

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April 16, 2012

Wrecking Ball Science – Will the Bowling Ball Smash the News Anchor’s Face?

Who else but Steve shows up at a television studio and makes a request to hang a 16-pound bowling ball from the ceiling? It’s for science, silly, and a lesson in the Laws of Motion.


9News Anchorman Mark Koebrich helped Steve demonstrate energy and motion. When hung on a rope, the bowling ball becomes a pendulum. The ball swings back and forth. If Steve swings the ball and adds energy by pushing it like a kid on a swing, the ball will swing back farther than where it started.

If Steve asks Mark to stand in front of the swinging ball and lets it go, the ball should return only to its starting point and not go beyond it. This demonstrates that you only get out what you put in.

The key is not to move when the bowling ball comes swinging back at your

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