DNA and RNA are key to this puzzle that helps middle schoolers review basic protein synthesis terms like 'codon' and 'enzyme' with clear, simple clues.
Human Circulatory System Crossword Puzzle for Kids is a medium crossword puzzle with 12 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Human Circulatory System Crossword Puzzle for Kids
Challenge kids ages 8-12 with this medium-difficulty crossword focused on the human circulatory system. Learn key terms about blood flow, heart parts, and vessels.
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Across
- 1. Blood vessels that carry blood back to the heart
- 2. Gas carried by red blood cells to the body
- 3. The red liquid that carries oxygen and nutrients
- 5. Blood vessels that carry blood away from the heart
- 6. The organ that pumps blood throughout the body
- 9. The liquid part of blood that carries cells and nutrients
- 11. The rhythmic throbbing caused by the heartbeat
Down
- 4. Tiny blood vessels that connect arteries and veins
- 7. One of the four sections inside the heart
- 8. The largest artery in the body
- 10. Small vessels that collect blood from capillaries
- 12. A flap that prevents blood from flowing backward
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