Share: Title:Big Idea 3: Earth's Systems Interact Duration: 5:50 Plays: 439K views Published: 12 years ago Download MP3 Download MP4 Simillar Videos ▶️ 6:37 Why Earth Science? 439K views • 12 years ago ▶️ 4:27 Big Idea 8: Natural Hazards Affect Humans 439K views • 12 years ago ▶️ 4:57 Big Idea 2: Earth Is 4.6 Billion Years Old 439K views • 12 years ago ▶️ 4:58 Big Idea 9: Humans Change Earth 439K views • 12 years ago ▶️ 4:14 Big Idea 1: Earth Scientists Study Our Planet 439K views • 12 years ago