Science Centre Review

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Across
  1. 5. A reaction in which a substance reacts with oxygen, typically producing heat and light.
  2. 10. A chemical reaction in which a substance reacts with oxygen, releasing energy in the form of heat and light, often producing carbon dioxide and water.
  3. 13. The process by which a gas turns directly into a solid, bypassing the liquid state.
  4. 14. The ability of a material to be hammered or pressed into thin sheets without breaking or cracking.
  5. 15. The tendency of a substance to undergo chemical reactions with other substances.
  6. 17. A type of reaction or process that absorbs heat from its surroundings.
  7. 18. Referring to a compound consisting of two elements.
  8. 19. The ability of a substance to catch fire and burn easily.
  9. 22. A chemical reaction in which an acid and a base react to form water and a salt, neutralizing each other's properties.
  10. 23. A group of two or more atoms bonded together, representing the smallest unit of a chemical compound that can exist independently.
Down
  1. 1. Substances formed as a result of a chemical reaction.
  2. 2. A substance that can destroy or damage other materials or living tissue through chemical reactions.
  3. 3. A chemical reaction in which a complex substance breaks down into two or more simpler substances.
  4. 4. A type of reaction or process that releases heat to its surroundings.
  5. 6. The gradual destruction of materials, usually metals, through chemical reactions with environmental elements like oxygen or moisture.
  6. 7. To put a plan, decision, or agreement into effect or action.
  7. 8. A group of letters added to the beginning of a word to modify its meaning, commonly used in naming chemical compounds.
  8. 9. A chemical reaction in which two or more simple substances combine to form a more complex substance.
  9. 11. A symbolic representation of a chemical compound using symbols for the elements and numerical subscripts to indicate the proportions of each element.
  10. 12. Groups of two or more atoms bonded together that form the smallest unit of a chemical compound.
  11. 16. respiration The process by which cells convert nutrients, usually glucose, into energy (ATP), using oxygen and releasing carbon dioxide and water.
  12. 20. Substances that undergo a chemical reaction to form products.
  13. 21. The ability of a material to be stretched or drawn out into a wire without breaking.