The Doodle 4 Google art contest is back for the seventh year in a row. This year’s doodle theme is “if I could invent one thing to make the world a better place…”

The contest is open to K-12 students in the United States. The winner will receive a $30,000 scholarship and a $50,000 technology grant for his or her school. Submissions for the contest are due by March 20, 2014. Submissions can be made online or through the mail.

This year Google and Discovery have teamed up to offer a set of classroom activity resources for teachers. Three activity packs will be available by the end of the month. The first activity is available now. The activities are designed to help students develop and share their invention ideas.