Class Lab 1

What do you need to know?

Materials

10 penniesScale or balanceMetric rulerRoll of coinsLab book

Vocabulary

• Balance• Gram• Meter• Millimeter

• The standard unit of length in the metric system is the meter. Other units of length and their equivalents in meters are as follows: 1 millimeter = 0.001 meter1 centimeter = 0.01 meter1 decimeter = 0.1 meter1 kilometer = 1000 meters

• We abbreviate these lengths as follows:1 millimeter = 1 mm1 centimeter = 1 cm1 meter = 1 m1 decimeter = 1 dm

• Be sure you use the metric side of the ruler

• For reference, 1 meter is a little longer than 1 yard or 3 feet. It is about half the height of a very tall adult. A centimeter is nearly the diameter of a dime, a little less than half an inch. A millimeter is about the thickness of a dime.

Mass

• The standard unit of mass in the metric system is the gram. Other units of mass and their equivalents in grams are as follows:1 milligram = 0.001 gram1 centigram = 0.01 gram1 decigram = 0.1 gram1 kilogram = 1000 grams

• We abbreviate these masses as follows:1 milligram = 1 mg1 centigram = 1 cg1 decigram = 1 dg1 gram = 1 g1 kilogram = 1 kg

• For reference, 1 gram is about the mass of a paper clip. One kilogram is about the mass of a liter of water.

• Complete the chart as you complete the lab.• Be thinking of errors you could easily make as

you complete this experiment

Graph 1

• When you graph your data be sure to label the x axis and y axis.

• Number of coins on x axis• Mass of the coins on the y axis

Graph 2

• Number of coins on the x axis• Total thickness on the y axis

• Draw a line to connect your dots.