Review :

1. b

2. Review: To investigate how temperature affects seed germination, a student placed 10 radish seeds of the same variety on moist paper in each of 3 petri dishes and placed the dishes in the following environments: Dish # 1: Refrigerator, 5ºC Dish # 2: Room Temperature, 20ºC Dish # 3: Incubator, 37ºC 1. State the problem of this investigation. 2. Which factor is the variable in this investigation?

3. Dish # 1: Refrigerator, 5ºC Dish # 2: Room Temperature, 20ºC Dish # 3: Incubator, 37ºC 3. Identify the control group. 4. Which factor is the dependent variable?

4. The driver of a tractor-trailer truck more than 13 feet tall attempted to drive under a 12-foot bridge. The truck was carrying chemicals to spokesman Stephen MacDonald said. The city’s hazardous materials team responded, but no chemicals or fuel ultimately leaked.

6. http://www.learnalberta.ca/content/mesg/html/math6web/index.html?page=lessons&lesson=m6lessonshell15.swfhttp://www.learnalberta.ca/content/mesg/html/math6web/index.html?page=lessons&lesson=m6lessonshell15.swf

7. The amount of space an object takes up UNITS = L or cm3 1 mL = 1 cm3 Volume

8. 1. Volume of aSolid: V = L x W x H How is volume measured?

9. Ex: L =2 cm, W=1 cm, H=1 cm V =2cm x 1cm x 1cm V = 2 cm3

10. Example: V = ?

11. V = L x W x H 2cm x 3cm x 5cm V = 30 cm3

12. 2. Volume of a liquid: graduated cylinder (mL)

14. Measure at the MENISCUS

15. V =73 mL

16. V = 18 mL

17. 26 mL 5.5 mL 93 mL

18. 23.5 mL

19. V = 9 – 7= 2 V = 2 mL V1 = 7 mL V2= 9 mL

20. 3.Volume of irregular solid: Displacement V with object - V w/o object

21. Amount of matter in an object Grams (g) TRIPLE BEAM BALANCE Mass

23. Topic: Measurement Aim: Practice measuring length, volume and mass. Do Now: 1. Work on Ditto 2. Work on displacement question from yesterday’s notes HW: Castle Learning (Scientific Method) due Monday

24. 1 cm 1mm

26. 1 cm = 10 millimeters

29. Images created at http://www.standards.dfes.gov.uk/primaryframework/downloads/SWF/measuring_cylinder.swf

31. Example: V = 20 –11.5 V = 8.5 mL V1 =11.5 mL V2 = 20 mL

32. http://resources.edb.gov.hk/~s1sci/R_S1Science/sp/en/syllabus/unit14/new/testingmain1.htmhttp://resources.edb.gov.hk/~s1sci/R_S1Science/sp/en/syllabus/unit14/new/testingmain1.htm 60mL V = 260mL – 200mL

33. 9 cm 8 cm 10 cm V = L x W x H V = 10cm x 8cm x 9cm V = 720 cm3

34. http://www.touchspin.com/chem/DisplayTBB.html

35. Topic: Measurement Aim: Practice measuring length, volume and mass. Do Now: (Take out Simpsons HW) Let’s talk about your research! HW: Castle Learning (Scientific Method) due Monday ***Research due Wednesday, October 5th.****

40. Mass = 542 gm

41. Mass = 542 gm

42. What is the total mass? Where should the riders be? 10 g 10 g 10 g 1 g 1 g 20 g 5 g 5 g 5 g 5 g 100 g

43. 172 g http://www.ohaus.com/products/education/weblab/TBBread.html

44. Mass = 137.4 gm

45. Mass = 25.4 gm

46. Mass = 79.4 gm

47. Let’s summarize… • What is the name of the instrument used to measure volume? To measure mass? • What are the units used when measuring the volume of a liquid? Of a solid? • Explain how the volume of a certain amount of liquid is measured. • Explain how the volume of a solid is determined. • Explain how displacement is used to measure the volume of an irregular solid.

48. Review: 1. Which piece of laboratory equipment would be used to obtain the most accurate measure of the volume of a glucose solution? • triple beam balance • graduated cylinder • beaker • metric ruler

49. 2. Which piece of equipment could be used to determine the mass of a frog? • triple beam balance • graduated cylinder • beaker • metric ruler

50. 3. Mass is best defined as the • size of an object • density of an object • amount of matter in an object • weight of an object