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Bell Work 8/17/2009 Name 5 things you want to learn about in science class this year!!! ****Write these 5 down in your science journal. Please make sure to have the date and title, which is Bell Work 8/17/2009

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Metric System 1.Referred to as the International system of units or SI 2.Based on the number 10 3.Measuring system used by all scientist 4.Used to measure length, volume, mass, weight, density, and temperature.

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Length 1. Used to measure from one point to another 2. Basic unit of length is the meter (m) –Kilometer-km –Hectometer-hm –Dekameter-dam –Meter-m: base unit –Decimeter-dm –Centimeter-cm –Millimeter-mm 3.In space, distance is measured in Light Years!! a. This is the distance light travels in a year.

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Bell Work Today were going to begin learning how to measure objects using a ruler or meter stick. Your task on the bell work is to write/explain to me the procedure (steps to follow) for using a ruler or meter stick. Be as detailed or specific as you can be!!!

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Volume 1.Volume is the amount of space an object takes up. 2.Basic unit of volume is the liter(L) Kiloliter-kL Hectoliter-hL Decaliter-daL Liter-L: base unit Deciliter-dL Centiliter-cL Milliliter-mL

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Volume Continued 3.Large amounts of liquids are measured in liters 4.Small amounts are measured in mL (milliliter) 5.Solids are measured in cubic centimeters **To calculate the volume of a solid** L x W x H= ____ cm³ 6. Most often used are the mL and the L.

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Mass 1.Mass is the amount of matter in an object. 2.Basic unit of mass gram (g) 3.Large objects are measured in Kilogram (kg)

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Mass Continued 4.Small objects are measured in grams (g) or milligrams (mg). Kilogram-kg hectogram-hg dekagram-dag gram-g decigram-dg centigram-cg milligram-mg 5. Most often used are the kg, g, and the mg.

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Weight 1.Weight is the measure of attraction between objects due to gravity. 2.Basic unit of weight is the Newton (N)

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Density 1.Shows a relationship between mass and volume 2.To calculate density we divide mass by volume 3.Units for density depend on size of object 4.Large objects=kg/L (slash means per) 5.Small objects=g/mL (slash means per)

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Temperature 1.Measured in degrees Celsius: °C 2.Freezing= 0 degrees Celsius 3.Boiling = 100 degrees Celsius

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Tools for measuring 1.A metric ruler is used to find length 2.A graduated cylinder is used to find the volume of a liquid or an irregular solid. 3.A metric ruler is used to find the volume of a rectangular object. 4.A triple beam balance is used to find the mass of an object.

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Definitions of Prefixes Kilo1000 Hecto100 Deka10 Basic unit: meter (m), liter (L), gram (g) Deci--.1 or 1/10 Centi--.01 or 1/100 Milli or 1/1000

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