The Body's Tiny Defense System
When a sniffle strikes, two curious kids shrink down to meet the body's tiny defenders—white blood cells, antibodies, and more—as they discover how the immune system spots germs and fights them off.
El mensaje en la gota de sangre
Mia se hace un pequeño corte de papel y se imagina encogiéndose en un río rojo brillante para descubrir cómo viaja la sangre por el cuerpo.
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
La sangre viaja por el cuerpo transportando oxígeno. El corazón bombea la sangre, los glóbulos rojos llevan oxígeno, los glóbulos blancos ayudan a combatir gérmenes y las plaquetas ayudan a cerrar los cortes para que el cuerpo pueda sanar.
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