Do Plants Need Soil to Grow?

I think that not all plants need soil to grow because seaweed doesn't have soil. - Kaden D.
I think that plants don't need soil to grow because seaweed and moss don't grow in soil. Moss gets its nutrients from the sun. - Tucker  F.
Sometimes seaweed can be upside down with the leaves in the sand and the roots in the water. I think the sand is kind of like the soil. It doesn't need the sun it pretty much needs water. - Sawyer A.
I think all plants do not need soil because there is this really cool thing called hydroponics where you don't need soil you just need water and fish. The fish produce the food and it is good for the environment and for nature. - Summer L.