Chapter 1
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The use of knowledge to solve practical
problems.
Cell phones are technology. How so?
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Chemistry: study of matter.
Physics: study of the interactions between
matter and energy.
Geology: study of Earth.
Astronomy: study of the universe beyond
Earth.
Biology: study of living things.
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Chemistry: Anti-freeze in a car (lower
freezing point than water), toast (oxidized the
surface of the bread), synthetic fabrics
Physics: getting ketchup out of the bottle
(inertia), seatbelts in cars, using a hammer
Geology: “Diamonds are a girls best friend!”
Astronomy: Orion’s Belt
Biology: YOU!
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Make observation
Ask question
Develop hypothesis
Test hypothesis
Analyze Data/Draw Conclusions
Develop Theory
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Solve a problem or better understand
something.
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Revise the hypothesis or decide on another
one.
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The explanation for something.
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A summary of an observation.
What is the difference between law and
theory?
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Positive exponent = moving to the right
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Negative exponent = moving to the left
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Multiplication: Multiply numbers and add
exponents
Division: Divide numbers and subtract
exponents
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Video
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Line Graphs
Bar Graphs
Circle Graphs
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Line Graphs
◦ 1 variable
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Bar Graphs
◦ Comparisons
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Circle Graphs
◦ Parts of a whole
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One scientist looks at the work of another
scientist.
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Writing in scientific journals.
Speaking at a conference.
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CHART ON PAGE 16
Meter (m)
Kilogram (kg)
Kelvin (K)
Second (s)
Mole (mol)
Ampere (A)
Candela (cd)
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Meter (m): length
Kilogram (kg): mass
Kelvin (K): temperature
Second (s): time
Mole (mol): amount of a substance
Ampere (A): electric current
Candela (cd): luminous intensity
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The use of knowledge to solve practical
problems.
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The variable that causes a change in another
variable.
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The variable that changes in response to the
manipulated variable.
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The variables that are kept the same during
an experiment.
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The variable that is kept the same during an
experiment.
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They make it easier to observe things that
might be too difficult to observe directly.
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Globe
DNA Strand
Human/Plant Cell
Erupting Volcano
Plastic Skeleton
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Science is the system of knowledge.
Technology is the use of knowledge.
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(4.7x10(^4) ) x (10.9x10(^2) ) =
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(3.1 x10-2) x (6.0 x 10-4) =
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(3.3 x 104) / (1.1 x 105) =
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(7.2 x 10(^-7)) / (2.1 x 10-4) =
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(2.03x10(^4) ) x (9.123x10(^2)) =
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The measurement 75.6 seconds equals
____________________ milliseconds.
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The measurement 63.965 kg is
_______________ g.
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The measurement 0.0529 dag is
_________________ dg.
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Convert 40ºC to K
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Convert 88ºF to K
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Convert 87ºF to ºC
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Convert 7236 K to ºC