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phsyical science 9th grade > intro to science test > Flashcards

intro to science test Flashcards

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Biology 101 flashcards
1
Q

convert 42000 mL to L

A

42 L

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2
Q

convert 7.46 m to mm

A

7460 mm

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3
Q

convert 13.49 Dkg to g

A

134.9 g

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4
Q

convert 42800 mL to hL

A

0.42800 hL

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5
Q

convert 948 cL to hL

A

0.0948 hL

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6
Q

state the metric conversions in order

A

kilo hecto deka meter liter gram deci centi milli

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7
Q

state the steps in order for graphing

A
  1. title very descriptive
  2. label axis (x-independent y-dependent) (label = variable then unit)
  3. set up axes
  4. plot data
  5. make a key
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8
Q

state the steps to set up axes w/numbers

A
  1. look at data and determine range (highest # - lowest #)
  2. look at axes count # of lines up and across (across = 42, down = 58)
  3. determine interval (interval = range divided by # of lines) almost always will be a decimal so round up to next value that makes sense (good idea to start 1 interval below your lowes #)
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9
Q

what does ~ mean on graph

A

skipping ahead numbers on a graph

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10
Q

state all 7 steps in scientific method

A
  1. observations
  2. state the question/problem
  3. gather information
  4. form hypothesis
  5. test hypothesis (experiment)
  6. draw conclusions
  7. report results
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11
Q

what are the 2 main branches of science and explain them

A

social science: deals with nature
natural science: tries to understand how nature or the whole universe behaves

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12
Q

what is biological science, physical science, earth science

A

biological science: life science
physical science: 2 branches are: chemistry: science of matter and how it changes and physics: science of forces and energy
earth science: 2 branches are: geology: physical nature + history of earth and meteorology: study of atmosphere and weather

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13
Q

name three types of graphs and explain them

A

line graphs: show continuously changing data
bar graphs: compare values of items
pie graphs: shows all the parts of a whole

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14
Q

what is the method of reducing the # of zeros in very big or very small #’s and expressing them as a power of ten

A

scientific notation

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15
Q

rule for multiplying in scientific notation

A

add powers of ten

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16
Q

rule for dividing in scientific notation

A

subtract powers of ten

17
Q

indicates the exactness of a measurement; how close measurements are to each other

A

precision

18
Q

indicates how close a measurement is to the true value

A

accuracy

19
Q

used by scientists to show the precision of ameasurement

A

significant figures; tell you how precise the measurement is but not how accurate it is

20
Q

moving into scientific notation; if exponent is positive then…

A

original # was big/large (greater than 1)

21
Q

moving into scientific notation; if exponent is negative then…

A

original # was small (less than 1)

22
Q

when moving into scientific notation, moving the decimal right equals

A

negative exponent

23
Q

when moving into scientific notation, moving the decimal left equals

A

positive exponent

24
Q

moving out of scientific notation; positive exponent =

A

make a big # (move right)

25
Q

moving out of scientific notation; negative exponent =

A

make a small # (move left)

26
Q

3.5610 x 10 to the 4 power

A

35610

27
Q

2.543 x 10 to the -3 power

A

0.002543

28
Q

8.235 x 10 to the -4 power

A

0.0008235

29
Q

0.00387 x 10 to the 5 power

A

387

30
Q

0.00854 x 10 to the -5 power

A

0.0000000854

31
Q

477.8 x 10 to the 7 power

A

4778000000

32
Q

0.000189 move into scientific notation

A

1.89 x 10 to the -4 power

33
Q

100500500 move into scientific notation

A

1.005005 x 10 to the 8 power

34
Q

12500000000000000000 move into scientific notation

A

1.25 x 10 to the 19 power

35
Q

-0.000006895 move into scientific notation

A

6.895 x 10 to the -6 power

36
Q

-45000000 move into scientific notation

A

-4.5 x 10 to the 7 power

37
Q

9.647 x 10 to the power of 7

A

96,470,000

phsyical science 9th grade (3 decks)

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