After exploring information about Sally Ride on the StarKids Who's Who site, students write a letter using the Letter Generator to Dr. Ride's foundation, Sally Ride Science.
Sally Ride, first American woman in space, was born in 1951.
The first picture of Earth was taken by the U.S. satellite Explorer VI in 1959.
After students view the first picture from the Explorer VI Satellite, they discuss the differences between this first image and the images of the earth that we typically see today.
The prototype for the World Wide Web was created in 1990.
Students look at pictures from the past using the WayBack Machine and brainstorm a few websites to explore to think about how they have changed over the years.