1. matter

2. Anything that has mass and takes up space

3. chemistry

4. Study of matter and how it changes

5. Physical property

6. Characteristic that can be observed without changing it into a different substance Example: freezing point, texture, color, temperature

7. Chemical property

8. Ability to change into difference substances Example: rusting, flammability

9. mixture

10. Two or more materials combined together Example: salad, hot chocolate, pancakes

11. solution

12. Special mixture when a material dissolves in water Example: salt water

13. dissolving

14. One material disperses evenly into another material so the first one seems to disappear Example: stirring sugar in tea

15. Post-it Check 1.Name the 3 mixtures you made. 2.How was the salt and water different from the others after you added water and stirred? 3.What are the two ways used for separating mixtures?

16. evaporation

17. Liquid turns to gas and disperses to the air, leaving any dissolved solid material behind

18. crystal

19. Solid form of a material that can be identified by its properties such as shape, color, and pattern

20. Question???? Your challenge is to design a method to separate this mixture of solid materials so that the gravel ends in the G cup, the powder in the P cup, and the salt in the S cup. Hmmm… Have you designed your method? Have you separated the gravel? Have you separated the powder? Have you separated the salt?

21. Question???? How much salt can you dissolve in 50 ml of water? Materials: Water bottle post-it Funnel Salt Blue scoop Filter Balance Gram pieces Syringe Tub of water

22. Saturating a Solution 1.Add 50 ml to the bottle 2.Add one scoop of salt at a time, put the cap on and shake. Keep doing this until you see salt at the bottom. 3.Pour the bottle through the funnel using a wet coffee filter. What remains is the saturated solution. 4.Find the mass of your saturated solution using a balance. Put the saturated solution on one side and 50 ml of plain water on the other. Add gram pieces to the plain water until they are balanced.

23. Saturated solution

24. When solid material is added to a solution until no more will dissolve Solute: solid that dissolves Solvent: the liquid in the liquid 2 parts to a solution

25. Post-it Check Complete this Claims and Evidence Claims Evidence I know it took _________ grams of I know this because… Salt to saturate 50 ml of water.

26. Heterogeneous mixture

27. Can see the different parts and can easily be separated Example: salad

28. Homogeneous mixture

29. So evenly mixed can’t see the different parts Example: solution, air

30. solubility

31. The property that substances have of dissolving in solvents

32. concentration

33. The amount of material dissolved in a volume (measurement) of liquid.

34. element

35. Substance that cannot be broken down into any other substances Example: aluminum, hydrogen, carbon, calcium, nitrogen, silver, gold, mercury They each have a one or two letter symbol O=oxygen C=carbon Fe=iron

36. atom

37. Basic particle from which all elements are made

38. molecule

39. A group of two or more atoms held together by chemical bonds

40. compound A substance made of two or more elements When they combine, they form compounds with properties different from the elements. Example: C12H22011=table sugar It has 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen Carbon is black but sugar is not Oxygen is a gas but sugar is not

41. Potential energy

42. Energy of an object because of its position

43. Kinetic energy

44. Energy of an object in motion