Measurement and Measurement and Tools in ScienceTools in Science

MeasurementMeasurement Measurement is a description of an Measurement is a description of an

object using numbers and unitsobject using numbers and units Units in the US (for example: inches, Units in the US (for example: inches,

gallons, and Fahrenheit) gallons, and Fahrenheit) are different are different from units used by scientistsfrom units used by scientists

Scientists use the metric system also Scientists use the metric system also known as the known as the International System of International System of Units Units (SI for short)(SI for short)

The SI system is used by scientists The SI system is used by scientists for for consistencyconsistency

What are some units used in the SI System?What are some units used in the SI System?

Degrees Celsius or KelvinDegrees Celsius or Kelvin MetersMeters LitersLiters GramsGrams

Complete Part 2 on your worksheet Complete Part 2 on your worksheet now.now.

Answers: 1. CAnswers: 1. C 2. B2. B 3. D3. D 4. A4. A

ToolsTools In order for scientists to perform In order for scientists to perform

measurements measurements we use toolswe use tools. . What are some tools used by scientists for What are some tools used by scientists for

measurement?measurement? RulersRulers BalancesBalances Graduated cylindersGraduated cylinders BeakersBeakers ThermometersThermometers DroppersDroppers

Complete Part 3 on your worksheet nowComplete Part 3 on your worksheet now Answers: 1. D Answers: 1. D 2. E2. E 3. C 3. C

4. A4. A 5. B 5. B 6. 6. F F

Each tool measures Each tool measures different different valuesvalues and uses and uses different units different units for for

the measurementthe measurement Complete Parts 4 and 5 on your Complete Parts 4 and 5 on your

worksheet nowworksheet now Answers Part 4: Answers Part 4:

1. A1. A 2. B2. B 3. C3. C 4. C4. C 5. B5. B6. D6. D

Answers Part 5:Answers Part 5:

1. A1. A 2. B2. B 3.C3.C 4. C4. C 5. B5. B6. D6. D