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