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

1. Referred to as the International system of units or SI

2. Based on the number 103. Measuring system used by all

scientist4. Used to measure length,

volume, mass, weight, density, and temperature.

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-mm3. In space, distance is measured in Light

Years!!a. This is the distance light travels in a year.

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.1. Length of this room

2. The width of our lunch card3. The length of my stapler

4. The width of your shoe lace5. The width of your couch at home

Volume

1. Volume is the amount of space an object takes up.

2. Basic unit of volume is the liter(L)Kiloliter-kLHectoliter-hLDecaliter-daLLiter-L: base unitDeciliter-dLCentiliter-cLMilliliter-mL

Volume Continued3. Large amounts of liquids are

measured in liters4. 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= ____ cm³6. 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?

Mass1. Mass is the amount of matter

in an object.

2. Basic unit of mass— gram (g)

3. Large objects are measured in Kilogram (kg)

Mass Continued4. Small objects are measured in

grams (g) or milligrams (mg).Kilogram-kghectogram-hgdekagram-daggram-gdecigram-dgcentigram-cgmilligram-mg

5. Most often used are the kg, g, and the mg.

Weight

1. Weight is the measure of attraction between objects due to gravity.

2. Basic unit of weight is the Newton (N)

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)

Temperature

1. Measured in degrees Celsius: °C

2. Freezing= 0 degrees Celsius

3. Boiling = 100 degrees Celsius

Tools for measuring

1. A metric ruler is used to find length2. 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.

Definitions of Prefixes

Kilo—1000Hecto—100Deka—10Basic unit: meter (m), liter (L), gram

(g)Deci-- .1 or 1/10Centi-- .01 or 1/100Milli-- .001 or 1/1000