/ 10 Place Value ANALYZE the following number: 3, a.What number is in the hundreds place?? b.What number is in the hundredths place? c.What number is in the tens place? d.What number is in the thousandths place? 3, Leave all contracts out to be collected. Leave the Syllabus Quiz and Webquest out to be checked.

Place Value

Graduations 1 mL2 mL0.2 mL0.5 mL

Estimating with Instruments We can estimate to one significant figure between the lines on the instrument 6.35 cm

12.4 mL Reading a Meniscus We can estimate to one significant figure between the lines on the instrument

Estimating with Instruments Read the volume in this graduated cylinder to the correct number of sig. figs mL

Reading a Meniscus 25.1mL36.8 mL5.46 mL14.8 mL

Reading a Meniscus Correctly Looking down gives a high reading Looking up gives a low reading Eye-level gives correct reading

Accurate vs. Precise Read the volume in this graduated cylinder as accurately as possible. a)28 mL b)29 mL c)28.5 mL d)28.4 mL e)28.40 mL

Accurate vs. Precise Read the volume in this graduated cylinder as accurately as possible. a)35 mL b)35.7 mL c)37 mL d)37.01 mL e)37.0 mL