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 15 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 understanding of the human circulatory system with this medium-difficulty crossword puzzle. Perfect for 6th-8th graders learning about blood flow, heart parts, and circulation.
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Across
- 1. To move continuously through a cycle, like blood in the body
- 2. Blood vessels that carry blood back to the heart
- 3. Smallest blood vessels where exchange with tissues occurs
- 5. Blood cells that carry oxygen (two words combined)
- 6. Muscular organ that pumps blood throughout the body
- 8. Blood vessel that carries blood away from the heart
- 10. The liquid part of blood that carries cells and nutrients
- 12. The fluid that transports oxygen and nutrients
- 14. Small vein that collects blood from capillaries
Down
- 4. Type of circulation between heart and lungs
- 7. Structures in veins that prevent backflow of blood
- 9. The largest artery in the body
- 11. Side of the heart that pumps oxygen-rich blood to the body
- 13. Phase when the heart contracts to pump blood out
- 15. Gas carried by red blood cells to the body's tissues
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