PS: Measurement, Calculation, and Data Processing

The SI base unit of length is the

The SI base unit of time is

Write the following number in scientific notation.

0.052

How would you write -5.6 x 10^-3 in standard form? type your answer with no spaces

You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.

• 25 mg
• 25,000 mg
• 250 mg
• 2500 mg

Variable changed by the chemist

• options

• variable

• independent variable

• control variable

Variable measured by the chemist:

• control variable

• dependent variable

• very much something

• meter stick

Which lab equipment is a graduated cylinder?

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• 
• 

Which lab equipment is a Erlenmeyer flask?

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• 
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Convert 56C to K

• 312

• 312K

• 329

• 329K