Plop, plop. Fizz, fizz. Dive, dive. Build your own mini submarines for a deeper look at how they work. No expensive supplies required—just Alka Seltser tablets and household objects.

This simple experiment eases the task of understanding daily and seasonal cycles of day and night. See firsthand why the length of daylight changes along with your location on Earth.

Without your eyes to guide—and possibly distract—you, what would you notice that you otherwise might not have? Enlist the help of a few friends, and find out.

Not sure how to describe your field site? This one-page site report will help you note the important details, from area and average elevation to human-made and natural topography.

Collecting specimens is necessary for studying and documenting new species—making responsible collecting all the more important. Find out how you can practice it.

The New York Botanical Garden has plant specimens that date back to the Lewis and Clark expedition of 1804-1806. What better place to learn how to protect and store your botanical treasures?

In Antarctica, scientists often have trouble measuring katabatic winds, which are so strong they can knock down the instruments. Discover for yourself why Antarctica is the windiest place on Earth.

Did you know Stegosaurus became extinct 66 million years before T. rex walked the Earth? Explore the planet's diverse eras and periods.

Jade has been treasured around the world for thousands of years. Travel to Guatemala with an AMNH curator looking for the source of Olmec jade.

Millions of gallons of water flow through New York City’s water system each day. Where does it all come from? And where does it all go? Take an interactive journey to find out.