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 8 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 the human circulatory system with this medium-difficulty crossword designed for 6th-8th graders. Learn key terms about blood flow, heart parts, and vessels.
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Across
- 1. Structure in the heart that prevents blood from flowing backward
- 2. Gas transported by red blood cells to the body’s tissues
- 4. The liquid part of blood that carries cells and nutrients
- 5. Muscular organ that pumps blood throughout the body
Down
- 3. Tiny blood vessel where oxygen and nutrients are exchanged
- 6. Blood vessel that carries blood back to the heart
- 7. Blood vessel that carries blood away from the heart
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