Experimental measurements must not only be RELIABLE and ACCURATE but also must be easily understood by others

a decimal system of measurement based on 10 Units of SI used in this class: Kilo= 1000 centi= 1/100 or.01 deci= 1/10 or.1 milli= 1/1000 or.001

When Measuring…Use… length meters (m) volume (l x w x h) liter (L) mass grams (g) temperature Celsius (°C) *Mass is a measure of amount of matter in an object. *Weight is measure of gravitational force

centimeter millimeter 1 meter=100 centimeters (cm) 1 meter= 1000 millimeters (mm) 1 cm= 10mm

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter length of the Mississippi River kilometer

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter mass of a paper clip milligram

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter mass of an elephant kilogram

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter width of a fingernail millimeter

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter width of a TV screen centimeter

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter volume of juice in a paper cup milliliter

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter mass of a bowl of cereal grams

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter amount of salt in an order of french fries milligram

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter amount of soda in a large plastic bottle liter

centimeterkilometermilligram millimetergramkilometer Celciusmeterliter milliliter temperature of a bowl of soup Celsius

is the mass of an object per unit volume (D=m/v). The unit for density is a combination of more than one fundamental unit and is therefore called a derived unit

The density of water is 1.0 g/mL If an object’s density is greater than 1.0 g/mL will it sink or float? iew&ResourceID=17

Will a Diet Pepsi float or sink? Regular Pepsi? What do you base your answer on? What did you see? Were you correct in your predictions? Why or why not?

Do two candy bars have the same density?