STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol 4.Measurement  Measuring instruments  Quantity  Measuring distance  See for yourself  Measuerment of area  Measuerment of area of a regular surface  Area of surface of irregular shape  Measurement of mass  Volume  Capacity  Measurement of temperature  Currently used system of measurement  M.K.S C.G.S

STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Old Measuring instruments In ancient period for measuring objects man was using his own body parts Ex. Handsfull grain,Arm length of cloths, Distance in steps,and Time on Sunrise and sunset

STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Quantity - Measuring something is called measurement, That which is going to be measure like mass,distance, area, time are called quantity.

STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Measuring distance - Units used to measure distance are Centimeter, meter, Kilo meter etc.  Devices used to measure distance –  Ruler, Scale, Meter rod, Tape etc

//////////// STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Measuerment of area - - Area means expansion of any surface  Area of rectangle = Length × Breadth  Unit used for area – Square Centimeter, Square meter, Square Kilo meter etc.

STD – 6 th SUB – SCIENCE 4.Measurement  Volume 1.Volume of irregular shape = Final readings – Initial readings. Presented By -Panchal Amol

STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Volume 1.Volume -Space occupied by the object means volume of cuboid. 2.Volume of regular shape = Length × breadth × height  Unit used for area – Square Centimeter, Square meter, Square Kilo meter etc.

//////////// STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Measuerment of mass – Weight  Unit used for mass – gram, kilogram,,tonnes,quintal etc.  Devices- Beam balance,balance spring, dharam kanta.

STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol  Capacity  The volume of liquid that a vessel can hold is called the capacity.  E.g. – capacity of jars, capacity of can, capacity of water tank.

STD – 6 th SUB – SCIENCE 4.Measurement  Measurement of temperature *Devices – Thermometer used to measure temperature of substance. *Unit – unit of measuring temperature is degree Celsius Presented By -Panchal Amol

STD – 6 th SUB – SCIENCE 4.Measurement  Time *Devices – clock *Units- second, minutes, hours, days, months years. Presented By -Panchal Amol

STD – 6 th SUB – SCIENCE 4.Measurement Presented By -Panchal Amol QuantiyM.K.S.SystemC.G.S. system 1.DistanceMeter( m)Centimeter (CM) 2.WeightKilogram (kg)Gram (G) 3.TimeSecond (s)Second (S) M.K.S. and C.G.S System