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 9 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
Explore key parts of the human circulatory system with this medium-difficulty crossword puzzle, perfect for 3rd to 5th graders learning biology basics.
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Across
- 1. Rhythmic throbbing caused by the heartbeat
- 3. Blood vessel that carries blood away from the heart
- 5. Flaps that prevent blood from flowing backward in veins
- 6. The liquid part of the blood that carries cells
- 8. Fluid that transports oxygen and nutrients in the body
Down
- 2. Organ that pumps blood throughout the body
- 4. Blood vessels that carry blood back to the heart
- 7. Tiny blood vessels where oxygen and nutrients are exchanged
- 9. Gas carried by red blood cells to the body’s tissues
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