1. Guide to Measurement

2. Metric (SI) System Le Systeme International d’Unites Le Systeme International d’Unites International System of measurement International System of measurement

3. Mass Amount of matter as measured by pull of gravity Amount of matter as measured by pull of gravity Units: 1 kilogram (kg)= 1000 grams (g) Units: 1 kilogram (kg)= 1000 grams (g) 1 gram (g) = 1000 milligrams 1 gram (g) = 1000 milligrams

4. Length Longest measurement end to end Longest measurement end to end Units: 1 meter (m)=100 centimeters (cm) Units: 1 meter (m)=100 centimeters (cm) 1 meter (m)=1000 millimeters(mm) 1 meter (m)=1000 millimeters(mm) 1000 m = 1 kilometer (km) 1000 m = 1 kilometer (km)

5. Volume The amount of space that an object occupies The amount of space that an object occupies Length x Width x Height Length x Width x Height Units: 1 liter (L) = 1000 milliliters (mL) Units: 1 liter (L) = 1000 milliliters (mL)

6. Density Amount of mass in a given space Amount of mass in a given space Mass ÷ Volume Mass ÷ Volume Units: Grams/Liters Units: Grams/Liters

7. Temperature Measure of molecular energy Measure of molecular energy Celsius (˚C) Celsius (˚C) 0˚C = freezing point of water 0˚C = freezing point of water 100˚C = boiling point of water 100˚C = boiling point of water 0˚C = 32˚F 0˚C = 32˚F

8. Observations Observations: We use our senses to gather information about the world around us. There are two types of observations. Observations: We use our senses to gather information about the world around us. There are two types of observations.

9. Qualitative Data Qualitative observations: (quality) Usually made with our senses. Color, shape, feel, taste, sound. Qualitative observations: (quality) Usually made with our senses. Color, shape, feel, taste, sound.Examples: Tanya is wearing a blue sweater. Tanya is wearing a blue sweater. The tabletop is smooth. The tabletop is smooth. The dog’s fur is shiny. The dog’s fur is shiny.

10. Quantitative Data Quantitative observations: (quantity) How many. Will always have a number. Based on exact measurement. Quantitative observations: (quantity) How many. Will always have a number. Based on exact measurement.Examples: The room is 8 meters across. The room is 8 meters across. Sarah is 141-cm tall. Sarah is 141-cm tall. Sal weighs 450 Newtons. Sal weighs 450 Newtons.