See the invisible made visible using tools from simple hand lenses to powerful microscopes ...

Middle Ground, allows people to drop their guard for a bit, enjoy the presence of others, and learn something new. Fifteen interactive exhibits, a coffee cart, and chairs and tables create a space for ...

The Big Bang theory raises some important questions about the fundamental nature of the universe: Will the expansion of the universe, set in action by the Big Bang, continue forever? Or will gravity ...

After 10 minutes, take a look at the nails. Are they a different color than they were before? Is the leaning nail 2 different colors? If not, leave the nails in the bowl and check on them again in an ...

Artist Bob Miller's Light Walk at the Exploratorium will change the way you look at light, shadow, and images.

Now we have great tools like spreadsheets to do the numerical computations for us. Below you can download OpenOffice (or Libre Office), Apple Numbers or Excel format files. In these spreadsheets, you ...

The energy released in an earthquake ranges over many orders of magnitude. Earthquakes are measured on a magnitude scale that is exponential: Each additional unit multiplies the energy released by 32.

Keep adding water until the Ooze feels like a liquid when you're mixing it slowly. Then try tapping on the surface with your finger or a spoon. When Ooze is just right, it won't splash--it will feel ...

Another popular system called a diagrammatic cipher, used by many children in school, substitutes symbols for letters instead of other letters. This system is, in essence, the same as the letter ...

It might seem obvious to say that earthquakes do most of their damage by shaking the ground. But groundshaking is actually a complex phenomenon. Engineering the seismic safety of a structure involves ...

Fill in your weight below in the space indicated. You can enter your weight in any unit you wish. Click on the "Calculate" button. Notice that the weights on other worlds will automatically fill in.

Inquiry is about curiosity-driven exploration that makes real-world problems and science phenomena come alive for learners. Think hands-on investigations, big questions, and aha moments—all guided by ...