What you see and what you think you see are different things. Find out what your brain doing behind-the-scenes!

Take a look at light with these three easy experiments

Try this trippy experiment to fool your brain.

Create a flounder fish that's hard to spot. In this hands-on activity, students gather evidence to explore how camouflage helps animals survive.

The Five Tools and Processes for Translating the NGSS are designed to help professional development leaders work with teachers on curriculum, instruction, and assessment as they achieve this vision. Click the link for each tool for an...

A complete guide to the planet's climate change, including evidence, causes, effects, and conservation efforts.

Test your skill at reading the emotion expressed in a face in these two matching games.

On this site, you will learn all about Paleontology, the study of ancient life. It defines paleontology and provides links to games, stories, videos, and hands-on activities.

[Free Registration/Login Required] The article "The Rise of Oxygen in the Earth's Atmosphere" from the American Museum of Natural History focuses on when the rise of oxygen in the earth's atmosphere began. A Step Read, a question set,...

This site from American Museum of Natural History focuses on Genetics. It defines genetics and provides links to games, stories, videos, and hands-on activities on the topic.

Learn why fieldwork is an important component of any scientist's career, especially among those who are actively working to preserve the Earth's biodiversity. Three American Museum of Natural History biologists tell you about their...

The National Museum of Natural History of the Smithsonian presents an extensive annotated bibliography of works on Native Americans for grades K-12.

Learn about metamorphic, igneous, and sedimentary rocks and see many examples of each type.

Construct a story about the Inuit or the polar bear from a series of pictures that can be put together in a sequence.

The Smithsonian National Museum of Natural History, in a section titled "North American Mammals," offers a general overview of the hooded skunk. Content includes detailed drawings, photographs, specimens, and a map showing the skunk's...

The Smithsonian National Museum of Natural History, in a section titled "North American Mammals," offers a general overview of the polar bear. Additional content includes detailed drawings, photographs, and a map showing the polar bear's...

Step-by-step details for building a rock collection, beginning with collecting specimens, moving on to observing and sorting rocks, and finishing with displaying the collection. Includes a data table for keeping track of all your...

Are plates of armor, horns, exceptionally large heads, and bony plates examples of dinosaur display or defense? Visitors to this resource will learn what scientists have concluded about the purpose of these peculiar dinosaur features.

Try out your ability to think like Einstein by working through two thought experiments that help explain how satellites stay in orbit and how the speed of light affects the universe.

Flip this interactive OLogy card to find questions and answers, fast facts, and other bite-size pieces of information to help you understand the nature-versus-nurture debate.

Flip over this interactive OLogy flash card to read about the Ring of Fire, a series of volcanoes in the Pacific Ocean along the Pacific Plate.

Turn over this interactive card and start learning bite-size pieces of useful information about the Portuguese man-of-war, such as its diet, habitat, and physical characteristics.

Einstein's general theory of relativity is the subject of this interactive OLogy card. Turn it over to find fast facts, questions and answers, and other bite-size pieces of information about the theory.

How fast could a Tyrannosaurus rex really run? Visitors to this resource will see how scientists use theropod biomechanics to simulate the movement of these large dinosaurs.