Students explore the planets and their atmospheres online. They write the story of "Goldilocks and the Nine Planets" to explain how each planet's atmosphere differs from Earth's. They design a viable life form.

In this NASA Anniversary learning exercise, students complete activities such as reading a passage, phrase matching, fill in the blanks, correct words, multiple choice, spelling, sequencing, scrambled sentences, writing questions,...

Learners discover ways to protect themselves from the sun. They identify diseases that are caused by too much sun exposure. They take a quiz and measure their progress throughout the year.