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Try These: How many Sig Figs in the following? .00234 20,002 29,000 2.3000 Solve 12.1012cm + 20.234cm + 11.12cm= 2.345cm X 11.023cmX.0023. Oh Wow…We need a review. Homogeneous Mixture-something consistent throughout Ex: Salt water

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Oh Wow…We need a review

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Oh wow we need a review

Try These:How many Sig Figs in the following?.0023420,00229,0002.3000Solve12.1012cm + 20.234cm + 11.12cm=2.345cm X 11.023cmX.0023


Oh wow we need a review

Oh Wow…We need a review

  • Homogeneous Mixture-something consistent throughout Ex: Salt water

  • Heterogeneous-Mixed composition throughout Ex: Alphabet soup, Sample of Dirt

  • Element- Basic Building Block (See Periodic Table) Ex: N,I,O

  • Compound-composed of elements

    • Ex: CO2

  • Pure substance can’t be separated with out a change of composition (O2, NaCl (salt), H2O) can be elements or compounds


How does significant digits relate to tools in science

How does significant digits relate to tools in science?

  • Significant Digits show how precise a tool is

  • Precision is How close measurements are to each other

  • This is different than accuracy which is how close you are to the correct answer


Explain what a precise dart player would look like how would this compare to an accurate player

Explain what a precise dart player would look like. How would this compare to an accurate player?


What is in a good procedure

What is in a Good Procedure?


What does it mean control a procedure

What does it mean Control a procedure?

  • In a controlled experiment everything is the same except for the manipulated variable


How does this relate to an experimental control

How does this relate to an experimental control?

  • An experimental control determines if the environment has any affect on the data


You will design an experiment to determine the affect of temperature on reaction rate

You will design an experiment to determine the affect of temperature on Reaction Rate

  • Available Materials

  • Beakers, Ice, Water, 3 polident tablets, graduated cylinders


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