The Body's Clean Up Crew
When the body makes waste it cannot keep, two curious kids follow the clean-up crew inside—watching how the kidneys, liver, and other helpers filter blood and carry waste safely out.
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🔬 Science Element
The immune system protects the body from germs and illness. White blood cells, antibodies, and other defenders work together to find, attack, and remember invaders like viruses and bacteria so the body can heal and fight future infections.
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