General science knowledge

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Across
  1. 2. What colour is lead on the periodic table?
  2. 4. What is the hardest mineral?
  3. 6. The heart has both atriums and ________?
  4. 8. What is another word for gas?
  5. 9. What do you use to examine cells?
  6. 10. What rocks are formed when sediments are pressed together by overlying sediments?
  7. 13. What colour is oxygen?
  8. 15. To make an incision in a body part you can use either scissors or a _____?
  9. 18. True or False, All metals are the same?
  10. 19. what is the symbol silicon?
  11. 20. Leonardo di _______?
Down
  1. 1. Dinosaurs can be bird or _______ hipped?
  2. 3. starting with F what is one cause of heat?
  3. 5. What is a zygote?
  4. 7. True or false, televisions are made up of 1000s of pixels?
  5. 8. The particles in a solid_________?
  6. 11. Who is the hardness scale for minerals named after?
  7. 12. Stalagmites grow from the _______?
  8. 14. What do we breathe?
  9. 15. is ice a solid, liquid or gas
  10. 16. Is water a solid, liquid or gas?
  11. 17. what colour is titanium on the periodic table?