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 Middle School is a medium crossword puzzle with 18 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
Challenge your circulatory system knowledge with this medium-level crossword for grades 6-8. Includes key terms like arteries, capillaries, and plasma.
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Across
- 1. Another name for the mitral valve in the heart
- 2. Muscular organ that pumps blood through the body
- 3. Vessels that return blood to the heart
- 5. Protein in red blood cells that binds oxygen
- 8. Gas carried by blood to body cells for energy
- 9. Small vein that collects blood from capillaries
- 11. Small artery that leads to capillaries
- 14. The liquid part of blood that carries cells and nutrients
- 15. Blood vessels that carry oxygen-rich blood away from the heart
- 16. Type of circulation that moves blood between the heart and lungs
Down
- 4. CAVA Large veins that return blood to the heart from the body
- 6. Protective sac surrounding the heart
- 7. Red fluid that circulates through the body transporting oxygen and nutrients
- 10. Structures that prevent blood from flowing backward in veins
- 12. Tiny blood vessels where oxygen and nutrients exchange with tissues
- 13. Blood cells that carry oxygen using hemoglobin
- 17. The largest artery that carries blood from the heart to the body
- 18. Blood components involved in clotting
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