Science Crossword

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Across
  1. 4. Most biological organisms are made out of many of these
  2. 7. Used to measure temperature
  3. 13. Now extinct
  4. 15. Equipment used to see very small objects
  5. 17. Family of organism that includes Mammals, insects, crustaceans and fish
  6. 18. These cause lots of diseases but are sometimes useful too
  7. 19. Family of animals with six legs
  8. 20. A type of medicine that destroys bacteria
Down
  1. 1. Usually a chemical liquid that can cause burns
  2. 2. Type of organism that includes trees, flowers, grass
  3. 3. Elastic substance that was originally extracted from a tree
  4. 5. A liquid metal and also the surname of a famous singer
  5. 6. Measurement of temperature
  6. 8. Made from Carbon and is one of the hardest substances known by man
  7. 9. Family of animals that gives birth to live babies
  8. 10. Temperature in degrees celcius when water becomes solid
  9. 11. The type of science that studies animals and plants
  10. 12. COVID-19 is one type
  11. 14. This type of element/substance includes iron, copper, magnesium and aluminium
  12. 16. Man made substance that many household items are made of