Across
- 3. Substance formed as a result of a chemical reaction.
- 9. Scientific study of energy and its transformations.
- 12. Energy stored due to position or arrangement.
- 13. Type of biochemical reaction that builds complex molecules.
- 14. Earth’s water system including rivers and oceans.
- 18. Cycle involving an essential element found in proteins and needed by plants for growth.
- 20. layer of gases surrounding Earth.
- 21. Metabolic process where cells use oxygen and release carbon dioxide.
- 24. Anything that has mass and occupies space.
- 25. Energy required to initiate a chemical reaction.
- 26. Study of atmospheric phenomena and weather.
- 27. Molecule that speeds up chemical reactions in living organisms
- 28. Field focusing on chemical processes in nature.
- 29. Ability to do work
Down
- 1. Outer solid part of the Earth.
- 2. Increase in this causes more strain on natural resources.
- 4. Sum of all chemical processes in the body.
- 5. Washing away of soluble materials by water.
- 6. Type of energy carried by light or electromagnetic waves.
- 7. Study of Earth’s physical structure and substance.
- 8. Study of relationships between organisms and environment.
- 10. Place where life exists.
- 11. Pollution from chemicals and human waste harms this water source.
- 15. When water flows over land because it can’t be absorbed.
- 16. Substance made of two or more elements.
- 17. Process by which substances are changed into different substances.
- 19. Pure substance made of one kind of atom.
- 20. Smallest unit of an element
- 22. Breaking down of rocks and minerals on Earth’s surface.
- 23. Energy of motion