Science and Nature

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Across
  1. 2. A major group of mammals, which includes lions and tigers
  2. 3. The element with the atomic number 6, essential for life
  3. 6. The second planet from the Sun
  4. 8. The chemical symbol for the element with atomic number 79
  5. 9. The organ in the human body responsible for pumping blood
  6. 10. The element with the symbol 'O'
  7. 11. The planet known as the "Red Planet"
  8. 12. A structure in the human body that connects muscles to bones
  9. 13. The organ system responsible for breaking down food and absorbing nutrients
  10. 14. This mammal is the largest animal on Earth
Down
  1. 1. The organ that filters waste from the blood in humans
  2. 4. The branch of science that studies celestial bodies
  3. 5. A type of bear native to China, known for its black and white fur
  4. 6. The brightest planet in our night sky, named after the Roman goddess of love
  5. 7. A type of fish, known for its ability to generate electricity
  6. 10. The constellation known for its "belt" of three stars