All Washed Up

When it come to busting up grease and dirt, few things work better than soap, thanks to the amazing structure of soap molecules! These molecules work by having two very different sides. One side is an oxygen (O) ion loosely hanging on to a sodium (Na) or potassium (K) ion. An ion is an electrically charged atom or group of atoms. Because this end is very similar to water molecules (H2O) it can mix well with water. The other end is a long chain of carbon and hydrocarbon (H) atoms linked together.

The Mysterious Moon

Why do we only see one side of the moon?

What is it about the moon? Why does it only present one face? These questions are part of the most popular myth in astronomy. Whenever you take a look at the moon, you will always see the same side. Aside from its familiar phases, it looks as if the moon doesn't rotate! This is a difficult concept for many people to understand.

Playing with Senses

In Science Playground, we love to keep our senses engaged and our minds open to exploration by playing with sensory materials such as flubber and playdough. If you have been to our space at OMSI, you might have noticed that we are not the only ones interested in playing with these types of materials.

Cooking Up Science: Ice Cream, You Scream!

As hot weather creeps towards Oregon, the thoughts of many turn to usual summer pastimes: swimming, hiking, barbeques, and of course, ice cream! Beyond the love affair with our taste buds, there’s a lot of cool science behind this sweet treat. Keep reading to learn what makes ice cream so sweet and smooth, and how you can make it at home without any fancy equipment!

Hot Hands, Instant Crystals, and Super Cool Solutions

As the weather gets colder, fingers get frosty. Most chemical hand warmers are single use and take a while to warm up. But it's easy to make an instant, reusable hot pack with two simple ingredients: baking soda and vinegar. Follow the recipe below to make your own at home!

Materials:
  • 1 cup white vinegar (acetic acid C2O2H4)
  • 5 level teaspoons of baking soda (sodium bicarbonate NaHCO3
OR

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