general science-7

general science-7

Name  _________________________________ Period 1    2     3     4     5    6     7    
                                                                                                                                                    Date ___/____/2012

                                                                                Scientific Inquiry

                                                                                    Pgs. 13-22
 

 

What is Scientific Inquiry?_______________________________________________________________________________

What is the problem or question? (this is where we start)

Developing a Hypothesis.  What is this?

Designing an experiment.  How do we do this?

Controlling variables:

Manipulated variables:

Responding variables:

Controlled experiment:

e.Operational definition:

Collecting and interpreting Data.  How do we do this?

Organizing Data:

Graphing results:

Drawing Conclusions.   Explain?

Scientific Theory:

Scientific Law:

 

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                                             THINKING LIKE A SCIENCTIST:

(pg. 6)

      What are 5 skills scientists use to learn more about the world?

OBSERVING:

(pg. 7)

What is observing?

The senses a scientist uses in obvserving include sight, hearing , touch, tast, and ___________?
Define Quantitative vs Qualitative observations?

INFERRING:

(pg. 8)

 What is inferring?

 Circle the true statements about inferences.

  Inferences are based on reasoning from what you already know.
Making an inference involves wild guessing.
An inference is an interpretation of observations.
Peole make inferences all the time.

PREDICTING:

(pg. 9)

Making a forecast of what will happen in the future based on past experience or evidence is called______________.

How are inferring  and predicting related?

CLASSIFYING:
  
(pg. 10)

What is classifying?

MAKING MODELS:

(pg.11)

What does making models involve?

Circle the letter of the statements that could be a model.

Map
Movie set
Computer generated illustration
Notebook notes

Is the following true or false?  Models help people study things things that annot be observed directly. ____________.
Is the following sentence true or false?   Some information about an object or process may be missing from a model. ____________.

SCIENTIFIC ATTITUDES:

(pg. 12)

  What is science?

15.   Name 5 important attutudes that successful scientists possess?

 

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                                                        LABORATORY   HOW TO'S

Sample observation/ conclusion

Observation: 

    Item in the bag is quite hefty.   The object seems to have 5 very rough sides and is covered by a smooth surface at the bottom.   I think I noticed while feeling the object that it had some cracks throughout the 5 sides and the cracks were in 5 or 6 sides as well.   Feels well balanced for the flat side.

Conclusion: 

    Based upon my observations I have concluded that I believe the object is a soccer ball paper weight.   I made this determination because of the many sides the object had and the individual cracks that were felt on many of the flat sides.   I also felt only one balanced area that the object could sit on without rolling around therefore giving me the idea that the object was meant to be on a table or something.   The heft of the object led me to the idea of a paperweight

The above would be what I would expect for a   grade of a check ++ or a 110.

 

 

 

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 Name_______________________________ Period 1    2    3    4     5     6    7     8

Quantitative and Qualitative observations

1.___    25 feet to the water
2.___    Smells like garlic powder and vinegar.
3.___    Feels like smushed bananas.
4.___    Length of the Bangor International Airport runway.
5.___    Very rough fabric (wool).
6.___    1 Kilometer is equal to .62 miles.
7.___    12 inches to a foot.
8.___    36 inches to a yard.
9.___    1720 yards to a mile.
10.__    5280 feet to a mile.

Measuring in the classroom:

 How many ml of liquid in beaker #1_____?  What color is this? _____
 How many ml of liquid in beaker #2_____?  What color is this? _____
How many ml of liquid in beaker #3_____?  What color is this? _____
How many ml of liquid in beaker #4_____?  What color is this? _____
How many ml of liquid in beaker #5_____?  What color is this? _____
How many ml of liquid in beaker #6_____?  What color is this? _____
How many ml of liquid in beaker #7_____?  What color is this? _____
How many ml of liquid in graduated cylinder #1_____?  What color is this? _____
How many ml of liquid in graduated cylinder #2_____?  What color is this? _____
How many ml of liquid in graduated cylinder #3_____?  What color is this? _____
How many ml of liquid in graduated cylinder #4_____?  What color is this? _____
How many ml of liquid in graduated cylinder #5_____?  What color is this? _____
How many ml of liquid in graduated cylinder #6_____?  What color is this? _____
How many ml of liquid in graduated cylinder #7_____?  What color is this? _____
How many ml of liquid in graduated cylinder #8_____?  What color is this? _____

 What is the area of a floor tile?  Show your work, and explain how you got your answer and what tool(s) you used to do this.

What is the length, and Width of the tables in Mr. Andrews room?  Show your work,     and explain how you got your answer and what tool(s) you used to do this.

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                      METRIC CONVERSIONS 101

Basic notes:

 When you convert keep in mind just a few things.

    This system will NOT bite you!
This is a system that is used worldwide because of its simplicity.
You will be using decimals instead of fractions.
Smile and keep an open mind, and DON’t be afraid to ASK for HELP!

Rule #1:     When going from a smaller unit to a larger unit:  for example:

           mm (millimeters)   to     m (meters)

      45.0 mm    =    how many  ________  m

First, look at the smaller unit (mm).   How many of them go into a (m)?

Answer:   1000 mm to 1 m

Soooooo if you have 1000 mm to 1 m and you want to convert 45mm to m you need to see how many zeros are in 1000.   The answer is 3.   When you are going from a smaller unit to a larger unit you need to move the decimal place to the left the # of places equal to the # of zeroes.   See below:

45mm  = _____m                       45.0 mm
            1 place         4.50 mm
            2 places          .450 mm
            3 places          .045  mm

Sooooooo........ your answer to this question is  45 mm =  .045 m

Rule #2:     When going from a larger unit to a smaller unit:  for example:

           m(meters)   to     mm (millimeters)

      5.0 m    =    how many  ________  mm

First, look at the smaller unit (mm).   How many of them go into a (m)?

Answer:   1000 mm to 1 m

Soooooo if you have 1000 mm to 1 m and you want to convert 45m to mm you need to see how many zeros are in 1000.   The answer is 3.   When you are going from a larger unit to a smaller unit you need to move the decimal place to the right the # of places equal to the # of zeroes.   See below:

5m  = _____mm                           5.0 m
            1 place          50.0 mm
            2 places         500.0 mm 
            3 places       5000.0 mm

Sooooooo........ your answer to this question is 5 m =  5000 mm

 

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Convert the following:   Remember Metrics 101

45 m  =  _____________ mm                   45 mm  =  _____________ m
145 m  =  _____________ mm                  145 mm  =  _____________ m
45 g  =  _____________ mg                     45 mg  =  _____________ g
334 l  =  _____________ ml                      334 ml  =  _____________ l
78 g  =  _____________ kg                      78 kg  =  _____________ g
22.3 ml = ____________ l                         22.3 l  =  _____________ ml
45.6 cm = ____________ mm                  454 m  =  _____________ km
1.23 l = ______________ l                        13.76 kg = ____________ g
1234.4 ml = ___________ l                      5 mm  =  _____________ m
77.77 km = ____________ m                   9.90 m  =  _____________ km
56.9 ml = ______________  l                   88.8 cm  =  _____________ mm
9.8 cm = _______________ m                 11234 cm  =  _____________ mm
11234 m = ______________ km               11234 ml = _______________ l
11234 mg = _____________ g                  42 kg = __________________ mg
567 ml = _______________ k l                  9876 mm = _______________ cm
87.67 cm = _____________ m                  21.22 ml = ________________ l
50 kg = ________________ g                   23456 mm  =  _____________ km
654789 cm = ___________ m                   654789 mg = ___________ kg
111.222 kl = ____________ ml                  990789 g = ___________ kg
3.333 km = _____________ cm                3.333 cm = _____________ km 

Hints...... Follow the 101 rules I gave to you previously.   Think!  The decimal slides to the left or Right.   You are not doing advanced math here.   Think of this as the electric slide....A little to the left...da...da..A little to the Right.   Depending on the # of zeroes!

 

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Convert the following:   Remember Metrics 101  Worksheet #2

451 m  =  _____________ mm        545 mm  =  _____________ m
1452 m  =  _____________ mm                  2145 mm  =  _____________ m
452 g  =  _____________ mg                     645 mg  =  _____________ g
3341 l  =  _____________ ml                      9334 ml  =  _____________ l
784 g  =  _____________ kg                      978 kg  =  _____________ g
122.3 ml = ____________ l                         722.3 l  =  _____________ ml
45.62 cm = ____________ mm                  5454 m  =  _____________ km
11.23 l = ______________ l                        413.76 kg = ____________ g
1234.4 ml = ___________ l                         45 mm  =  _____________ m
77.77 km = ____________ m                      19.90 m  =  _____________ km
56.95 ml = ______________  l                     88.85 cm  =  _____________ mm
9.85 cm = _______________ m                   311234 cm  =  _____________ mm
112345 m = ______________ km                911234 ml = _______________ l
112347 mg = _____________ g                  842 kg = __________________ mg
5678 ml = _______________ k l                  89876 mm = _______________ cm
87.675 cm = _____________ m                  721.22 ml = ________________ l
504 kg = ________________ g                   623456 mm  =  _____________ km
6547890 cm = ___________ m                   9654789 mg = ___________ kg
4111.222 kl = ____________ ml                  8990789 g = ___________ kg
33.333 km = _____________ cm                73.333 cm = _____________ km 

Hints...... Follow the 101 rules I gave to you previously.   Think!  The decimal slides to the left or Right.   You are not doing advanced math here.   Think of this as the electric slide....A little to the left...da...da..A little to the Right.   Depending on the # of zeroes!

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Mass, volume, density, and something else Mr. Andrews threw in just to make you think

 

Name___________________________Period ____  Date received___/___/____ 

 

Date due:  ____/____/_____

 

Directions:   Find the density of the different types of gum.  Use what you know and follow the formula:

 

  D = M / V

 

Remember this means Density = Mass divided by the volume

In this lab the volume is acquired by measuring the L x W x HT

 

Type of Gum

(Spell them correctly)

Mass of the Gum

(g)

Volume of the Gum

(Cm3)

Density of the Gum

(g/cm3)

Density of the gum after Chewed

(g/cm3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Conclusion Questions:

What did you find out about the % of Sugar in chewing gum?

 

 

 

  1.    Does sugarless chewing gum actually have sugar in it?  If so, how can they say its sugarless?

 

 

 

  1. Compare and contrast the densities of the different chewing gums.   Which ones were denser?   Can you come up with a reason why?