Spotlite: Do Plants Need Soil?

What do plants really need to grow? In this NASA Spotlite, a student producer explores the idea that plants can only grow in soil—and puts that idea to the test! Using simple household items like a cup and cotton balls, the investigation shows that seeds can sprout without soil. Viewers learn that plants need water, […] The post Spotlite: Do Plants Need Soil? appeared first on NASA Science.