
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.
Un niño curioso descubre que no todos los microbios son villanos: algunas bacterias son amigas útiles que mantienen sanos nuestro cuerpo y el mundo.
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.

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.

During Science Fair Week, Lila and Jay discover a forgotten sandwich covered in fuzzy patches. With help from Ms. Rivera and a microscope, they explore the invisible world of bacteria—how these tiny living things grow, why some spoil food, and how we can stay healthy.

In Grandma Rosa's sunny garden, two curious kids pull up a bean plant and discover tiny bumps on its roots—and learn how special bacteria help plants capture nitrogen from the air.
Muchos microbios son útiles. Las buenas bacterias pueden ayudar a la digestión, protegernos de gérmenes dañinos y cumplir papeles importantes en la naturaleza.
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