Girl Scouts, forgirls.girlscouts.org, do a lot more than sell cookies! They are committed to empowering all girls to discover their abilities and be successful. Interactive games simulate real-life jobs and projects to encourage you to explore ways to use your talents. Be the Director and direct a real movie scene. You make important decisions about everything — from music to wardrobe to script. See your hard work come to life as you watch the final scene! Change the world one PSA at a time. Watch a quick video to learn how, and then upload your short video to begin!

Sit behind the President’s Desk, microsites.jfklibrary.
org/presidentsdesk, to learn about important life experiences leading up to John F. Kennedy’s election and key events during his presidency. Kennedy was an avid sailor long before serving in the Navy. Click the Whale Tooth to sail the Victura around Cape Cod and learn more about his love of the sea. The Campaign button leads straight to the office where you can see a successful campaign in action. Listen to the Kennedy Campaign Jingle, and watch the Great Debates.

Travel through space at the Smithsonian National Museum of Natural History’s Evolving Universe, mnh.si.edu/exhibits/evolving-universe. See spectacular views of the planets taken by high-powered telescopes and satellites. Start in Our Solar System and view amazing photographs of the Sun from the TRACE satellite telescope. Download a poster for your room or use an image to illustrate a project. Do you know how far it is to Mars, or what a “supermassive black hole” is? Behind the Science is the place to get answers to these and many other questions.

What’s your favorite Girl Scout cookie?

Speak Out Here!

Dear Amy: How do both of our eyes connect two different pictures to the same 3-D scene if they each see a slightly different picture? — Maddy, Montana

Dear Maddy: Believe it or not, our eyes actually see two slightly different images all the time. You don’t notice this happening because your brain combines the two images into a single scene. The differences between the two views are most obvious when you look at nearby objects, and your brain uses this information to perceive depth. A fun way to experience this is to grab two pencils and hold them horizontally with the eraser ends facing each other. Close one eye and try to touch the erasers together. Now try it with both eyes open. Using two eyes definitely makes it easier!

Movies in 3-D trick your eyes into “seeing” depth. 3-D movies display two different views at the same time, so the screen looks blurry until you put on special glasses. These glasses filter the images into two different views, so each eye sees the correct view. If you close one eye, the movie no longer appears in 3-D. To learn more about how 3-D glasses work, visit science.howstuffworks.com/3-d-glasses.htm/printable.

—Amy

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