Measurement and matter

DO NOW1) What do the three images below have in common?2) What is different about the three images?3) Which of the images contains water (H2O)? 1. 2. 3.

Intro to Chemistry

Today’s ObjectivesStudents will be able to.... - describe lab safety rules - identify lab tools and explain whatvariables are measured with each tool- identify the 3 states of matter

Basic Safety Rules#1 Rule:

Basic Safety Rules#1 Rule: Use common sense.

Basic Safety Rules#1 Rule: Use common sense.Others:

Basic Safety Rules#1 Rule: Use common sense.Others:No horseplay in LAB!

Basic Safety Rules#1 Rule: Use common sense.Others:No horseplay in LAB!Follow written/oral directions.

Basic Safety Rules#1 Rule: Use common sense.Others:No horseplay in LAB!Follow written/oral directions.Handle chemicals/glassware with respect.

Measurements Measurement provides QUANTITATIVEinformation to QUALITATIVE observations.Example: “You are tall” = Qualitative“You are 5 ft and 6 inches tall” = Quantitative Measurements always have 2 parts 1) a Number/# 2) a Unit

Units Of Measurement You Must KnowUse SI units — based on the metric system  Length  Mass  Volume  Time  Temperature

Units Of Measurement You Must KnowUse SI units — based on the metric system  Length meter, m  Mass  Volume  Time  Temperature

Units Of Measurement You Must KnowUse SI units — based on the metric system  Length meter, m  Mass kilogram, kg  Volume  Time  Temperature

Units Of Measurement You Must KnowUse SI units — based on the metric system  Length meter, m  Mass kilogram, kg  Volume liter, L  Time  Temperature

Units Of Measurement You Must KnowUse SI units — based on the metric system  Length meter, m  Mass kilogram, kg  Volume liter, L  Time seconds, s  Temperature

Units Of Measurement You Must KnowUse SI units — based on the metric system  Length meter, m  Mass kilogram, kg  Volume liter, L  Time seconds, s  Temperature kelvin, K

Measuring in the Chemistry Lab Volume Length Temperature Mass

Graduated Cylinder and BeakersGraduated cylinders and beakers are used tomeasure the Volume of liquids. Example Unitsof Volume are Liters (L), Milliliters (mL) andcubic centimeters (cm3)

Meter Stick or RulerA meter stick or ruler is used to measure Length.Example Units of Length are Meters (m),Centimeters (cm), and Feet (ft)

ThermometerA thermometer is used to measure theTemperature of substances. Example Unitsof Temperature are Celsius (oC), oFarenheight ( F) and Kelvin (K)

Electronic BalanceAn electronic balance is used to measure Mass.Example Units for Mass are grams (g), kilograms(kg) and ounces (oz)

Chemistry is the study of matterand the transformations matter can undergo…

…Matter is anything that occupies space.

…Matter is anything that occupies space. Chemistry with a Purpose

Can Matter Change States?

• Melting: Solid Liquid• Solidiﬁcation: Liquid Solid• Evaporation: Liquid Gas• Condensation: Gas Liquid• Sublimation: Solid Gas• Deposition: Gas Solid

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Measurement and matter

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