Water and life, periodic table, energy

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Across
  1. 1. – The process of heat transfer in fluids due to differences in density.
  2. 3. – Short forms used to represent chemical elements in the periodic table.
  3. 6. – The green pigment in plants that helps in photosynthesis.
  4. 7. – The transfer of heat energy through electromagnetic waves without needing a medium.
  5. 9. – A lightweight metal essential for plant chlorophyll and human bones.
  6. 12. – Subatomic particles found in the nucleus with no electrical charge.
  7. 14. – The part of a plant that supports leaves and transports nutrients.
  8. 15. – A vertical column in the periodic table containing elements with similar properties.
  9. 16. – Essential nutrients made of amino acids that help in body growth and repair.
  10. 20. – A reaction that absorbs heat energy from its surroundings.
Down
  1. 2. – A material that reduces heat transfer, keeping things warm or cool.
  2. 4. Metals – A group of highly reactive metals found in Group 1 of the periodic table.
  3. 5. – A horizontal row in the periodic table where properties change progressively.
  4. 8. – The measure of how hot or cold an object or environment is.
  5. 10. – A reactive metal essential for nerve function and found in bananas.
  6. 11. – A device used to measure energy in joules.
  7. 13. – The process by which water evaporates from plant leaves.
  8. 17. – The tissue in plants that transports water from roots to leaves.
  9. 18. Energy – The total energy of moving particles in a substance.
  10. 19. Mendeleev – The scientist who arranged elements in the first periodic table.