Science!

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Across
  1. 3. When a solid turns to a gas.
  2. 4. The peak of this stratovolcano is the furthest point from the centre of the Earth.
  3. 6. Lithium, Sodium and Potassium are examples of these.
  4. 10. Fluorine, Chlorine and Bromine are examples of these.
  5. 12. The number of windows in this room.
  6. 13. The largest bird in the world.
  7. 15. A gas produced in photosynthesis.
  8. 19. the star the Earth orbits.
  9. 21. A waste product of aerobic respiration.
  10. 22. Where aerobic respiration takes place.
  11. 24. The process where green plants get energy.
  12. 26. Hg is the chemical symbol for this element.
  13. 27. The longest river in the world.
  14. 28. chemical compound that is vital for life on Earth
  15. 29. The organ that breaks down alcohol in the body.
  16. 30. This element has an atomic number of 27.
Down
  1. 1. The name given when two or more elements have chemically joined together.
  2. 2. Deepest point in the ocean.
  3. 5. W is the chemical symbol for this element.
  4. 7. The mass number of the element Oganesson.
  5. 8. A bird found in Australia that can mimic the sounds it hears.
  6. 9. DNA stands for this.
  7. 11. The name given to the central block of metals in the periodic table.
  8. 14. Large carnivorous dinosaur that had a sail on it's back.
  9. 16. The largest star ever discovered
  10. 17. Where an animal lives
  11. 18. The Scientific name for Welly Boots!
  12. 20. elephant have two of these at the front of them.
  13. 23. This element is a noble gas.
  14. 25. The name of Mr Clough's cat and the first person to walk on the moon!