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Measuring Matter Chapter 2 Section 2

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**1/6 of what you weigh on Earth!**

Weight Weight is a measure of the force of gravity on an object. Would your weight be the same if you were on the moon? You would weigh about 1/6 of what you weigh on Earth!

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**MASS Measurement of the amount of matter in an object.**

Does your mass change on the moon? A physical property

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**1,000 Units of Mass International Systems of Unit “SI”**

SI unit of mass is the KILOGRAM. How many grams are in a kilogram? 1,000

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What is my mass? = 150 grams = 5 grams

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**Volume The amount of space that matter occupies.**

Liquids, Solids, & Gases have volume.

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**Units of Volume 1 Liter bottle = 1,000 milliliters 1 milliliter =**

liter (L) milliliter (mL) cubic centimeter (cm³) 1 Liter bottle = 1,000 milliliters 1 milliliter = 1 cubic centimeter

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What is my volume? = milliliters = 355 milliliters

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Calculating Volume Volumes of solids are usually expressed in cubic centimeters Volume = Length x width x height Don’t forget to label the units! How do you measure the volume of an irregular object? If a penny makes the water go up 4 milliliters, what is its volume? 4 cubic centimeters Water level rise = Volume of object in milliliters

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**Density Density relates the mass of a material in a given volume. NO!**

Two materials have the same volume, do they have to have the same mass? Density Density relates the mass of a material in a given volume. NO! A kilogram of sand takes up much less space than a kilogram of feathers! # of grams in one cubic centimeter The volumes differ because they have different densities.

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**every gram of water has a volume of 1 cm³**

Water at room temperature = Density of Water 1g/cm³ This means: every gram of water has a volume of 1 cm³ Mass Volume Density =

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