More ideas from john
Scientific Method Video - USE THIS ONE!

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Funny pictures about The real size of the sun. Oh, and cool pics about The real size of the sun. Also, The real size of the sun.

A great experiment showing how plants help to keep soil in one place ...

Possible school experiment to show importance of wetlands/riparian zones! This shows the importance of plants in our soil. Plants like trees and grasses help purify ground water. Without them the ground water gets polluted and harder to clean and drink.