Cool news: Big fridges to get more efficient under new Obama rules. Just what you've been waiting for: Another reason to feel good about buying Ben & Jerry's.

cut energy bills by up to $28

billion and cut emissions by

over 350 million metric tons

of CO2 over 30 years.”

Saturday, October 12, 2013 –

10am to 6pm

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Quiz Scores

• 13 = A• 12 = A-• 11 = B+• 10 = C+• 9 = C-• 8 = D-• 7-0 = F

Controlled Experiments and Natural Experiments

• Controlled experiment- an experiment conducted in the controlled conditions of a laboratory.

• Natural experiments- when a natural event, such as a volcano, acts as an experimental treatment in an ecosystem.

Interpreting Results

• Once results have been obtained, analysis of the data begins. This process involves two types of reasoning, inductive and deductive.

• Inductive reasoning- the process of making more general information to the more specific. Sometimes this is called the “top-down”

• Deductive reasoning- the process of moving from specific observations to broader generalizations and theories. Sometimes called a “bottom up”

Deductive vs. Inductive Reasoning• Examples of Deductive

Statements• All dogs are mammals. All

mammals have kidneys. Therefore all dogs have kidneys.

• Since all squares are rectangles, and all rectangles have four sides, all squares have four sides.

• All chemists are smart, since chemists are scientists and all scientists are smart.

• Since all men are mortal, and Socrates is a man, Socrates is mortal.

• The sun is a star; the sun has planets; therefore some stars have planets.

• Examples of Inductive Statements

• All swans we have seen have been white; therefore all swans are white.

• All swans we have seen have been white; therefore the next swan we see will be white.

• All known planets travel about the sun in ellipitical orbits; therefore all planets travel about the sun in ellipitical orbits.

• Since Chris is a good athlete, Chris's sister must be a good athlete also.

Partner Pair-Share

• Collaborate with your partner and create one inductive and one deductive statement.

Choose Your # (job) today and do it!!!!

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Work on SGQ 8-16 (Ch.1)

Collecting Data

• Replication- repeating the measurement many times

• Sample size- the number of times the measurement is repeated.

• Accuracy- how close a measured value is to the actual or true value.

• Precision- how close to one another the repeated measurements are.

• Uncertainty- how much the measure differs from the true value.