SI Units of Measurement • International system of units (SI) is known as the metric system and is based on the number 10.• To describe length, a scientist would use the

meter (m), the basic metric unit of length. 1 kilometer (km) = 1000 m 1 m = 100 centimeters (cm) 1 cm = 10 millimeters (mm)

1000 millimeters (mm) = 1 meter (m)200 cm = 2 m 3000 m = ? km

• Volume is the amount of space that something occupies, or the amount of space that something contains.

• Volume is the amount of space that something occupies, or the amount of space that something contains.

• The volume of liquids are expressed in liters (L) or milliliters (mL).

• Volume is the amount of space that something occupies, or the amount of space that something contains.

• The volume of liquids are expressed in liters (L) or milliliters (mL).

• The volume of solids are expressed in cubic meters (m3) or cubic centimeters (cm3 or cc).

• Volume is the amount of space that something occupies, or the amount of space that something contains.

• The volume of liquids are expressed in liters (L) or milliliters (mL).

• The volume of solids are expressed in cubic meters (m3) or cubic centimeters (cm3 or cc).

• Liters are based on the meter 1 m3 = 1000 L 1 cm3 = 1 mL

• Volume is the amount of space that something occupies, or the amount of space that something contains.

• The volume of liquids are expressed in liters (L) or milliliters (mL).

• The volume of solids are expressed in cubic meters (m3) or cubic centimeters (cm3 or cc).

• Liters are based on the meter 1 m3 = 1000 L 1 cm3 = 1 mL• 1 liter is about 1 quart

• Mass is the amount of matter that something consists of.

• Mass is the amount of matter that something consists of.

• The gram (g) is the basic SI unit for mass.

• Mass is the amount of matter that something consists of.

• The gram (g) is the basic SI unit for mass.• 1 kilogram (1000 grams) is equal to 2.2

pounds.

• Weight is how much something wants to be pulled down to the planet’s surface by gravity.

• The Newton (N) is the basic SI unit for weight.

Mass and Weight

• Weight and mass are different.

Mass and Weight

• Weight and mass are different. • Weight is measured with a spring scale. The

object’s weight pulls the spring down because of gravity.

Mass and Weight

• Weight and mass are different. • Weight is measured with a spring scale. The

object’s weight pulls the spring down because of gravity.

• On the moon, your weight would be different, because the gravity is less.

Mass and Weight

• Weight and mass are different. • Weight is measured with a spring scale. The

object’s weight pulls the spring down because of gravity.

• On the moon, your weight would be different, because the gravity is less.

• Your mass would be the same.

Mass and Weight

• Weight and mass are different. • Weight is measured with a spring scale. The

object’s weight pulls the spring down because of gravity.

• On the moon, your weight would be different, because the gravity is less.

• Your mass would be the same.• Balances use masses, not springs.

Temperature

• Celsius is used – not Fahrenheit.• Water freezes at 0 degrees Celsius• Water boils at 100 degrees Celsius• Room temperature is about 20 degrees C

• Kelvin is used for absolute zero – when molecules and atoms stop moving.

Temperature