This easy crossword puzzle helps kids in grades 3-5 learn about protein synthesis and DNA basics with common words and simple clues.
Human Circulatory System Crossword Puzzle for Middle School 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 Middle School
Explore key parts of the human circulatory system with this medium-difficulty crossword designed for middle schoolers. Includes heart structures, blood vessels, and functions.
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Across
- 1. The two lower chambers of the heart
- 4. Tiny blood vessels where exchange of oxygen and nutrients occurs
- 6. Blood vessels that carry blood away from the heart
- 9. Main organ that pumps blood through the body
- 10. Fluid that transports oxygen, nutrients, and wastes
Down
- 2. Structure in the heart that prevents blood from flowing backward
- 3. Blood vessels that carry blood back to the heart
- 5. Type of circulation between heart and lungs
- 7. The two upper chambers of the heart
- 8. The liquid part of blood that carries cells and nutrients
- 11. Blood cells that carry oxygen (two words combined)
- 12. Gas carried by red blood cells to body tissues
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