Measurement Length Mass Volume Length Definition The distance

Measurement Length Mass Volume

Length Ø Definition: The distance between two points. Ø Tools: Meter stick, ruler or a tape measure.

Length Ø Units l Kilometer (km) Hectometer (hm) Dekameter (dam) l Meter (m) l l l Decimeter (dm) Centimeter (cm) Millimeter (mm) A baseball bat is about 1 meter! Ø Value l 1, 000 10 l 1 l l l . 1. 001

Length Comparisons Which is longer a mile or a kilometer? Which is longer an inch or a centimeter? Which is longer a meter or a yard?

How to Measure Length

Mass Ø Definition: The amount of matter in an object. Ø Tools: Triple Beam Balance

Mass Ø Units l l Kilogram (kg) Gram (g) Ø Value l l 1, 000 1

How to Measure Mass

Mass of Solids Ø Directions for measuring the mass of a solid: 1. Tare the balance (make sure it is on zero) by making the line on the right handle of the balance line up with the line off of the beams. 2. Mass your object. 3. Make sure the riders on the beams are secure in the grooves! 4. Add the numbers on the 3 beams.

Mass of Liquids Ø Directions for measuring the Mass of a liquid: 1. 2. 3. 4. 5. Tare the balance (make sure it is on zero) by making the line on the right handle of the balance line up with the line off of the beams. Mass your container and liquid. Subtract mass of container from mass of container and liquid = mass of liquid. Mass of a Liquid = (mass of container and liquid) MINUS (mass of container)

Volume Ø Definition: The amount of space an object takes up. Ø Tools: Ruler or Meter Stick to measure the volume of regular shaped solids. Ø Liquids & Irregular Shaped objects…

Volume Units Solids cm 3 (centimeters cubed) Volume = L x W x H Units Liquids ml (milliliter) L (liter)

Volume of Liquids Ø Directions- liquids: l l Fill beaker, cylinder, or flask with liquid and read the side of the container. Always take the measurement at eye level at the bottom of the curve (meniscus). What is the scale for this cylinder? _____ What is the Volume of the liquid? _____

Volume of Liquids Practice

Volume of Regular Shaped Solids Ø Units cm 3 (centimeters cubed) Volume = L x W x H Volume = 3 cm x 3 cm = _______ cm 3

Volume of an Irregular Shaped Object Ø Volume of irregular shaped objects is called (Water Displacement): 1 - Fill cylinder with water, check and record the initial water level amount. 2 - Add the object and check where the new water level is. 3 - Subtract the initial water level from the final water level.

Practice Water Displacement Are the units m. L or cm 3?