Across
- 1. -is the main element in organic compounds
- 3. -occurs when there is more water than land can absorb.
- 7. has the properties of
- 10. the solid earth.
- 13. -Is a pure substance
- 16. -the sum of all the
- 17. ions in a solution
- 18. -a substance that starts a chemical reaction
- 20. -is anything that takes up
- 21. -the protective blanket of gases
- 23. and has mass.
- 24. -It enters the blood from the lungs and travels to the tissues.
- 25. -Where life
- 26. -Biological element
- 27. -is the breaking down or dissolving of rocks and minerals on Earth’s surface.
- 30. -a substance that forms as a result of a chemical reaction
- 32. -One of the environmental issue
- 37. -the concentration of
- 38. -comprises all types of water resources.
- 39. on planet Earth.
Down
- 2. -is the smallest
- 4. -occurs as a gas which makes up 78 percent of the atmosphere and that forms a part of all living tissues
- 5. -the chemical element of atomic number 16
- 6. -the state of one who lacks a usual or socially acceptable amount of money or material possessions
- 8. -is the outer mantle
- 9. object over a distance
- 11. -highly flammable diatomic gas.
- 12. -Cultural element
- 14. reactions in an organism
- 15. element
- 19. -is the removal of soluble material from a substance such as soil or rock through the percolation of water.
- 22. -is the study of energy
- 23. -KNOWLEDGE
- 28. consists of two or more
- 29. -is defined as ametabolic process wherein the living cells of an organism obtains energy
- 31. -is done when force is applied to
- 33. -is the ability to do work
- 34. -is a substance
- 35. -is a common chemical
- 36. of an element that