1. Science 1 st 9 Weeks Review

2.  Review  Slides 3- 42

3.  _______ is a statement written in a manner that describes the cause and effect relationship between the independent variable and dependent variables in an experiment.

4.  hypothesis

5.  Observations are made using the ________.

6.  5 senses

7.  What does a magnifying glass do?

8.  Enhances the vision of an item

9.  _________ are statements of what is expected to happen in the future based on past experiences and observations.

10.  Predictions

11.  A ____________ is a tentative explanation based on background knowledge and available data.

12.  inference

13.  A ____________ is a summary statement based on the results of an investigation.

14.  conclusion

15.  In science, it is important that experiments and the observations recorded are replicable. What does this mean?

16.  Replicable = can repeat

17.  _____________ data deals with descriptions and data that can be observed but not measured precisely.

18.  qualitative

19.  _________ data can be counted or measured and the results can be recorded using numbers.  Can be represented visually in graphs and charts.  More valuable in science because they allow direct comparisons between observations

20.  Quantitative

21.  Friendly  Like science  Positive about school work

22.  Qualitative

23.  25 students  10 boys, 15 girls  68 percent have perfect attendance

24.  Quantitative

25.  The amount a container can hold.  The amount of space occupied by an object.

26.  volume

27.  The distance between 2 points.

28.  length

29.  A body of matter with no specific shape.

30.  mass

31.  A metric unit of mass equal to 1 thousandth of a kilogram

32.  gram

33.  The measure of the amount of thermal energy in the atmosphere

34.  temperature

35.  Metric unit for measuring temperature  On this scale, water freezes at 0 degrees  Water boils at 100 degrees

36.  Celsius

37.  A number representing a specific point in hours, minutes, and seconds

38.  time

39.  A unit of time equal to 1 sixtieth of an hour  60 seconds

40.  minute

41.  This is when we put natural events in a sequence that allows us to notice change over time. (life cycles, moon phases, tidal changes)

42.  Natural events sequenced chronologically

43.  Review  Slides 44- 75

44.  Simple machines make work ___________.

45.  easier

46.  A stiff bar that moves about a fixed point (fulcrum).  It is used to push, pull, or lift things.

47.  lever

48.  A flat surface that is raised so one end is higher than the other.  Helps move heavy objects up or down.

49.  Inclined plane

50.  Wide at one end and pointed at the other.  Helps cut or split other objects.

51.  wedge

52.  A rod attached to a wheel.  Makes it easier to move or turn things.

53.  Wheel and axle

54.  An inclined plane wrapped around a cylinder or cone.  Holds objects together.

55.  screw

56.  A wheel that has a rope wrapped around it.  Used to life heavy objects by changing the direction or amount of force.

57.  pulley

58.  Seesaw  Crowbar  shovel

59.  lever

60.  ramp

61.  Inclined plane

62.  Knife  ax

63.  wedge

64.  Bicycle wheels  roller skates  doorknob

65.  Wheel and axle

66.  Jar lid  Wood screw

67.  screw

68.  Flagpole  Venetian blinds

69.  pulley

70.  A ______________ is a combination of 2 or more simple machines.

71.  Compound machine

72.  Bicycle  Wheelbarrow  Scissors

73.  Compound machine

74.  Which kind of work is made easier by the wheels of a wagon?

75.  Pulling a heavy load

76.  Review  Slides 77- 86

77. _______________ remain the same even if the visible material is reduced in size.  Examples: color, texture, phase, temperature, ability to dissolve in water

78.  Physical properties

79.  Ice cubes are an example of which form of water?

80.  solid

81.  Which of these dissolves in water?  A. Sand grains  B. Sugar cubes  C. Plastic straws  D. Wooden spoons

82.  B. Sugar cubes

83.  Every object that takes up space is made of __________.

84.  matter

85.  Observable characteristics that enable one to differentiate objects

86.  Physical properties