Post on 01-Jan-2016
Measurement-A Measurement-A Common LanguageCommon Language
MassMass
MassMass MassMass is the amount of matter an is the amount of matter an
object hasobject has
MatterMatter:: The material that all The material that all
objects are made up ofobjects are made up of
What is the difference between What is the difference between
massmass and and weight?weight?
WeightWeight is the amount of is the amount of
gravitational pull on an objectgravitational pull on an object
The basic unit of mass is The basic unit of mass is the…the…
The basic unit of mass is the The basic unit of mass is the gramgram..
Example: The weight of one Example: The weight of one sugarsugar packetpacket
US nickel weighs US nickel weighs
about about 5 grams5 grams
Some objects that are Some objects that are
measured in measured in gramsgrams or or gmgm
include:include:
* paper clips * paper clips
* pencils* pencils
* erasers* erasers
Units smaller than gramUnits smaller than gram A unit smaller than a gram is called?A unit smaller than a gram is called?
MilligramMilligram
One gram is how many milligrams?One gram is how many milligrams?
10001000
MedicationsMedications are measured in are measured in
milligrams milligrams or or mgmg
Ex: Ex: 1 Ibuprofen tablet1 Ibuprofen tablet = = 200200 mgmg
Unit larger than a gramUnit larger than a gram
Unit larger than gram isUnit larger than gram is Kilogram Kilogram
or kgor kg
1 kilogram is how many grams?1 kilogram is how many grams?
10001000 One One kilogramkilogram is little more is little more
than than 2 pounds2 pounds ( (2.2 lbs2.2 lbs.).)
One pound bar bells
ProblemProblem
* If a paper clip is * If a paper clip is 10 grams10 grams, how , how many will you need to have many will you need to have
1 kilogram1 kilogram of paperclips of paperclips
1000 divide by 10 = 1000 10 1000 divide by 10 = 1000 10 ==
100 paperclips100 paperclips
** Why use the number 1000?Why use the number 1000?
Because, there are 1000 grams Because, there are 1000 grams in kilogramin kilogram
What are some objects whose What are some objects whose masses can be measured in masses can be measured in
kilograms.kilograms. CarCar
Teacher’s DeskTeacher’s Desk
Desk Top ComputerDesk Top Computer
Can you think of otherCan you think of other
objects?objects?
Coolest Car Ever
Let’s think about this Let’s think about this one!!!!one!!!!
If one kilogram is If one kilogram is 1000 grams1000 grams and one and one
gram is gram is 1000 milligrams, 1000 milligrams, how manyhow many
milligrams in a kilogram???milligrams in a kilogram??? Hint: You will multiplyHint: You will multiply 1000 x 1000 = 1,000,000 or 1 million1000 x 1000 = 1,000,000 or 1 million So, 1 kilogram = 1,000,000 milligramsSo, 1 kilogram = 1,000,000 milligrams How much is 1 milligram?How much is 1 milligram?
About a pinch is saltAbout a pinch is salt
Measuring MassMeasuring Mass How do we measure mass?How do we measure mass? We can use a We can use a scalescale We can use a We can use a triple-beam triple-beam
balancebalance
Label the different parts Label the different parts of the triple-beam of the triple-beam balance.balance.
Label the different parts Label the different parts of the triple-beam of the triple-beam balance.balance.
Pan
Label the different parts Label the different parts of the triple-beam of the triple-beam balance.balance.
Pan Riders
Label the different parts Label the different parts of the triple-beam of the triple-beam balance.balance.
Pan Riders
Beams
Label the different parts Label the different parts of the triple-beam of the triple-beam balance.balance.
Pan Riders
Beams Pointer
VolumeVolume Volume of LiquidsVolume of Liquids
VolumeVolume VolumeVolume is the amount of matter and is the amount of matter and
space an object takes upspace an object takes up Object can be Object can be solidsolid
Ex: Ex: RockRock Object can be Object can be liquidliquid::
Ex: Ex: JuiceJuice Object can be Object can be gasgas::
Ex: Ex: AirAir
The basic unit for volume of a The basic unit for volume of a
liquid, is the…………?liquid, is the…………?
The The Liter (L).Liter (L).
One liter is……………MillilitersOne liter is……………Milliliters
Remember;Remember;
MilliMilli == 1/1000 or1/1000 or
one-thousandthone-thousandth
10001000
To measure the volume of To measure the volume of smaller liquids, the _________ is smaller liquids, the _________ is
used.used. Milliliter (mL)Milliliter (mL)
How many milliliters in one How many milliliters in one liter? liter?
1000 Milliliters1000 Milliliters
Problem Problem
The Coke bottle is 2 litersThe Coke bottle is 2 liters
How many milliliters is that?How many milliliters is that?
2 2 x 1000 = 2,000 mlx 1000 = 2,000 ml
ProblemProblem
The Minute Maid soda is The Minute Maid soda is
half a half a liter (1/2)liter (1/2)
How many milliliters is that?How many milliliters is that?
500 ml500 ml
The instrument used to measure The instrument used to measure the volume of liquids is called the volume of liquids is called
the…the…
Graduated Graduated cylindercylinder
Laboratory EquipmentLaboratory Equipment What are these What are these
called?called? Graduated CylindersGraduated Cylinders What do we measure What do we measure
with graduated with graduated cylinders?cylinders?
VolumeVolume Which metric units Which metric units
are used to measure are used to measure Volume?Volume?
Liters and millilitersLiters and milliliters
The curve on the top The curve on the top surface of water in the surface of water in the graduated cylinder is graduated cylinder is called?called?
MeniscusMeniscus
Observing-Observing- How do we measure How do we measure volume?volume?
We look at the We look at the MeniscusMeniscus What is it?What is it? The curve on the top The curve on the top
surface of watersurface of water How much water is in this How much water is in this
Graduated Cylinder?Graduated Cylinder?
53 milliliters or 53 ml53 milliliters or 53 ml
Bonus:Bonus: Where did the cylinder graduate Where did the cylinder graduate
from?from?
Laboratory Laboratory EquipmentEquipment
What is this What is this
equipment called?equipment called?
A A BeakerBeaker
What is the What is the Volume Volume
of this Beaker?of this Beaker?
250250 milliliters or ml milliliters or ml
What is What is VolumeVolume??
The amount of The amount of mattermatter
and and spacespace as an as an
object takes up object takes up
Laboratory EquipmentLaboratory Equipment Beakers come in assorted sizes:Beakers come in assorted sizes: 10 ml10 ml 50 ml50 ml 100 ml100 ml 250 ml250 ml 500 ml500 ml 1000 ml1000 ml 2000 ml2000 ml Which beaker is Which beaker is 2 liter or 2L?2 liter or 2L? Which beaker is Which beaker is .50 liter or .50L?.50 liter or .50L? Which beaker is Which beaker is .10 liter or .10L?.10 liter or .10L?
2000 ml
500 ml
100 ml
REVIEW QUESTIONSREVIEW QUESTIONS
11. What is weight?. What is weight?AnswerAnswer: The amount of gravitational pull on an : The amount of gravitational pull on an
objectobject2. What is Mass?2. What is Mass?AnswerAnswer: The measure of the amount of matter an : The measure of the amount of matter an object hasobject has3. What is the basic unit of 3. What is the basic unit of MassMass??AnswerAnswer: The gram or gm: The gram or gm4. What is the basic unit of 4. What is the basic unit of VolumeVolume??AnswerAnswer: The liter or L: The liter or L5. What can we use to measure volume?5. What can we use to measure volume?AnswerAnswer: Graduated Cylinder and the Beaker: Graduated Cylinder and the Beaker6. How do we measure volume?6. How do we measure volume?AnswerAnswer: We use the Meniscus: We use the Meniscus7. What is the meniscus?7. What is the meniscus?AnswerAnswer: The curve on the top surface of water: The curve on the top surface of water