Name 5 things you want to learn about in science class this year!!! 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

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

Length 2. Basic unit of length is the meter (m) Kilometer-km 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 In space, distance is measured in Light Years!! a. This is the distance light travels in a year.

***Signature Forms are due if you haven’t turned one in! Bell Work 8-18-09 Today we’re 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!!! ***Signature Forms are due if you haven’t turned one in!

Bell Work 8-19-09 If I asked you to measure the following items what unit would you use? You will use different units. Length of this room The width of our lunch card The length of my stapler The width of your shoe lace The width of your couch at home

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

Volume Continued Large amounts of liquids are measured in liters Small amounts are measured in mL (milliliter) 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.

Bell Work 8-24-09 Today we are checking our journals. Make sure everything has a title and a date. Homework is also due today. Question: What is one thing you learned from the volume lab on Friday?

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

Mass Continued 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.

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

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

Temperature Measured in degrees Celsius: °C Freezing= 0 degrees Celsius Boiling = 100 degrees Celsius

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

Definitions of Prefixes Kilo—1000 Hecto—100 Deka—10 Basic unit: meter (m), liter (L), gram (g) Deci-- .1 or 1/10 Centi-- .01 or 1/100 Milli-- .001 or 1/1000

Bell Work 9-01-09 Please answer the following: 36 daL = _____ kL 5.689 cm = _____ hm 745.23 kg = _____ g 926 dL = _____ mL 5. 159 m = _____ mm

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