Crash Course Kids: Planetary Plants - Episode 45.2
Crash Course Kids

So we know what life needs here to work, and we’ve talked a little about what life COULD look like on other planets. But what about plant life?

Siemens STEM Day: I Don't Need You Soil
Siemens STEM Day

In this activity, students learn that plants acquire their material for growth chiefly from air and water rather than from soil.