Matter & pH Crossword

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Across
  1. 7. Negatively charged particles that orbit the nucleus of an atom
  2. 12. Studies all matter that is not alive, has never been alive and does not contain carbon; ie: rocks, water & minerals
  3. 13. Having no electrical charge; indicates equal number of hydrogen ions and hydroxide ions, seven on the pH scale
  4. 14. Measures less than 7 on the pH scale, has more hydrogen ions than hydroxide ions
  5. 16. Determines the pH value of a solution
  6. 17. Measures more than 7 on the pH scale, has more hydroxide ions than hydrogen ions
  7. 18. The ability to allow liquids or gases through a membrane, such as the skin
  8. 19. A logarithmic scale that ranges from 0 to 14, indicates the acidity or alkalinity of a substance
  9. 21. Form of matter having definite weight, volume and shape
  10. 22. A product with a pH of 4.5-5.5 (average range of hair, skin and nails)
  11. 24. The scientific study of matter and the physical and chemical changes of matter
  12. 25. The branch of science that deals with the chemicals within the body
  13. 28. Basic building-block molecules that connect with each other to form larger, more complex compounds
  14. 29. Each step or number increases by multiples of ten, as in the pH scale
  15. 32. Biochemical compound that helps the body construct and renew itself
  16. 34. Biochemical compounds that join together in chains to form proteins
  17. 35. The smallest complete unit of an element
  18. 36. Positively charged particle in the nucleus of an atom
  19. 37. Refers to anything that occupies space and has weight
Down
  1. 1. Deals with all matter that is now living or was alive at one point, with carbon present, such as plants & animals
  2. 2. Biochemical compounds used by the body to store energy
  3. 3. Molecule formed when two or more atoms and combined chemically
  4. 4. Substance made of only one type of atom or molecule
  5. 5. Two or more atoms joined together by a chemical bond
  6. 6. A simple unit of a carbohydrate
  7. 8. Two saccharides linked together, such as table sugar
  8. 9. Formed when two or more compounds are blended together mechanically
  9. 10. Many saccharides linked together to form larger, more complex substances like starch
  10. 11. Thousands of amino acids connected lengthwise to form a chain
  11. 15. Biochemical compounds that fill intercellular spaces in skin; ie: triglycerides, fats & steroids
  12. 16. Groups of monomers that bond together to create complex compounds
  13. 18. A change in the physical characteristics of a substance, does not create a new substance
  14. 20. The dense core of an atom that contains protons and sometimes neutrons
  15. 22. A numerical measurement that indicates the acidity or alkalinity of a water-based substance
  16. 23. Bond involving the sharing of electrons of two or more atoms
  17. 26. A single saccharide; a simple sugar like glucose
  18. 27. Form of matter having definite weight and volume, but no definite shape - takes shape of the container its in
  19. 30. Form of matter having definite weight, but indefinite volume and shape
  20. 31. A change in a substance that creates a new substance with new chemical characteristics
  21. 33. Particle with no electric charge found in the nucleus of an atom