On April 20th, 2017

Send Water Traveling This Summer

It’s that time of year again when families start planning their summer travels. Whether you are visiting us at the Discovery Center of Idaho or trekking to a foreign land – scientific adventure is to be had!

But did you know that water also travels?

Discover the science behind traveling water so you can watch water travel in between some summer trips of your own.

Scientific Secrets of Traveling Water

Traveling water requires three scientific principles: cohesion, adhesion, and gravity. Through a chemical bond, water is made up of two hydrogen atoms and one oxygen atom. These three atoms bond together to form water. When more than one molecule of water gets together, they bond, too. This is the process of cohesion. Adhesion, on the other hand, has to do with those water molecules staying together once they bond. As you know, water drips, which means it isn’t as adhesive as it is cohesive. Otherwise it would stay together no matter what. Now for gravity’s role in making water travel. Water uses gravity to its advantage to be able to travel more rapidly.

Send Water Traveling!

OK now it’s time to see this process in action and watch water travel. For this, we have a science experiment that you can do at home with simple items and inspiration by Steve Spangler Science.

You will need:
- 2 clear drinking glasses
- Water
- Food coloring
- 2-foot piece of string or thin yarn, light colors work best
- Masking tape or duct tape

Process
1. Begin by filling one of the drinking glasses with water. Add your preference of food color to dye your water. Choose a darker color, preferably one that shows up well against the color of string you are using.
2. Take the empty glass and one end of the string. Affix the end of the string inside the bottom of the glass using tape. Make sure the string is attached by gently pulling on it.
Place the glass with the string in the bottom on a hard surface.
3. Hold the glass with colored water and the other end of the string in each of your hands above the other glass.
4. Very carefully pour the water from the glass onto the loose end of the string. Hold the string taut during this process for best results.
5. Slowly pour the water so that it travels along the string and into the glass.
6. See how long it takes you to fill up the empty glass with your traveling water.

Continue the experiment using various liquids and types of string to see how well your water travels. Water experiments are just one of the super awesome ways the Discovery Center of Idaho can bring a little science into your home.

Enjoy!

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