Types of Microscopes
Maya and Arjun look at a drop of pond water with Mrs. Patel and discover how simple and compound microscopes help us see a tiny world of microorganisms that is invisible to our eyes.
El secreto bajo las raíces
En el jardín soleado de la abuela Rosa, dos niños curiosos arrancan una planta de frijol y descubren la fijación del nitrógeno.
Spanish version coming soon.
This story is not available in Spanish yet. You can keep reading in English, or check back soon for the Spanish PDF and quiz.
Spanish version coming soon.
This story is not available in Spanish yet. You can keep reading in English, or check back soon for the Spanish PDF and quiz.
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🔬 Science Element
Algunas plantas, como frijoles y guisantes, trabajan con bacterias útiles que viven en bultos llamados nódulos en sus raíces. Estas bacterias convierten el nitrógeno del aire en una forma que las plantas pueden usar. Este proceso se llama fijación del nitrógeno. Ayuda a las plantas a crecer fuertes y devuelve nitrógeno al suelo para otras plantas.
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