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