Across
- 3. Transfer of energy through electromagnetic waves.
- 7. A synthetic material that is made by mixing together materials to form a new one.
- 9. The substance/s that form in a chemical reaction.
- 10. Change: The identity of a substance remains the same after one.
- 12. Copying nature.
- 13. Thermal energy being transferred.
- 15. Reaction: The process in which atoms are rearranged to produce different substances, changed identity.
- 16. A number placed in front of a chemical formula to show how many molecules of the substance are represented in the chemical equation.
- 18. The substances that form in a chemical reaction.
- 19. The original substance or substances in a chemical reaction.
- 22. A number below and to the right of the symbol.
- 24. It doesn't have the same number of each type of atom on both sides of the equation.
- 26. The original substance or substances in a chemical reaction.
- 28. Formula: A combination of chemical symbols and numbers that is used to represent a single unit of substance.
- 29. A reaction that gains thermal energy (gain).
- 30. A reaction that releases thermal energy (loss).
- 32. Thermal energy being transferred through liquids and gases.
- 33. Long molecules that are made up of five or more repeating units.
- 35. Renewable: Renewable material resources, but they must be managed so they do not ru of Renewable: The rate of which a resource can be renewable.
- 37. Result that follows naturally after the actions of a person or group.
- 38. Can be tiny, big, an event, or a phenomenon. See how they interact to form a unified whole.
- 40. Increasing the concentration of reactants can cause a reaction to occur faster.
Down
- 1. Human-made materials that are produced using natural or synthetic material.
- 2. When matter and energy cycle through Earth's systems, they are often transformed, changed identity.
- 4. A solid that is produced as a result of a chemical reaction in a liquid.
- 5. Matter and energy are conserved, to preserve.
- 6. A situation that involves giving something up in return for gaining something else.
- 8. A natural resource that cannot be replaced as quickly as it is used.
- 11. A resource that cannot be used up by humans.
- 14. A chemical reaction in which substances react with oxygen.
- 15. Materials that increase the rate of a chemical reaction by bringing together reactions.
- 17. Source: Substance, material, object or source of energy that is found in nature and that is useful or valuable to humans.
- 20. A material that slows the transfer of thermal energy.
- 21. Composed of 2 or more atoms bonded chemically.
- 23. A natural resource that can be replaced as quickly as it is used.
- 25. of Conservation of Matter: States that matter cannot be created or destroyed in ordinary chemical or physical changes.
- 27. Equation: Uses chemical formulas to model what happens in a chemical reaction.
- 31. (Physical & Chemical): Physical: identified without changing identity. Chemical: observed during or after chemical process.
- 32. A substance made up by two or more different types of atoms joined together by chemical bonds.
- 34. It has the same number of each type of atom on both sides of the equation.
- 36. Thermal energy being transferred through particles contact.
- 39. A material that speeds up the transfer of thermal energy.