1'1 Time

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1.1 Time Distance

• Unit 1 Chapter 1
• CPO Science
• Courtney Lewis
• Stapley Junior High School

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Introduction

• Learn about how things change with time
• Humans and growth
• Geographical landscapeerosion, i.e. The Grand
  Canyon
• Races/competition

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The Universe

• Properties
• 3 Dimensions, measured in length
• Time creates past, present, future

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Length

• Measuring Length
• Units
• inch (English system)
• meter (Metric system)
• Relative lengths
• Short distances use smaller units like in, cm, m
• Long distances use larger units like km or miles

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Time

• Two ways to look at time
• A particular moment What time is it?
• Interval of time How long have we been in this
  class?
• Measuring Time
• usually in seconds
• Equivalencies
• 1 hour 60 min 3600 seconds

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Measuring distance

• English System
• Inches (in), feet (ft) or yards (yd)
• Inches usually divided into 1/8ths or 1/16ths
• Metric System
• centimeters (cm) or meters (m)
• Smallest unit on meter stick usually the
  millimeter (mm)
• Equivalencies
• 1000 mm 100 cm 1 m
• milli 1000
• centi 100

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Why are there so many ways to measure the same
thing?

• Units created so everyones idea of a unit of
  measure is the same
• Science uses METRIC SYSTEM! (they are easier to
  work withfactors/powers of ten)
• Metric system is official system of US
• Show me a meter!
• Show me a gram!

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Measuring Speed Interactive
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Assignment 1.1

• P. 17 Vocab Set 1, Concept Review 1 2,
  Problem 13
• DUE Wednesday, March 26, 2008