Students can go through AP State Board 6th Class Science Notes Chapter 7 Let us Measure to understand and remember the concept easily.

## AP State Board Syllabus 6th Class Science Notes Chapter 7 Let us Measure

→ Foot space, hand space, cubit are conventional methods to measure the lengths.

→ The standard unit of length is Meter.

→ The smallest unit of length is centimeter/millimeter (cm/mm) and the larger unit of length is Meter / Kilometer (m/km).

→ The measurement of the extent of plane surface occupied by an object is Area.

→ A square centimeter (cm^{2}) is a standard unit to measure the area of a surface.

→ Volume is a measurement of the extent of space occupied by an object.

→ The volume of solids is measured in cubic meters, cubic centimeters.

→ The volume of liquids is measured in liters or milliliters.

→ We need standard instruments to measure lengths accurately.

→ The area is a measure of the extent of the plane surface occupied by an object.

→ France made a certain length of rod made of special material of platinum-iridium called a meter.

→ The original scale is preserved in the museum of France.

→ In our daily life, we use different types of measurements like plain type roll type centimeter scale of different sizes made up of wood iron, and plastic.

→ While measuring the length of objects the zero point of scale should be consisting the starting of an object

→ The perimeter of the bucket and perimeters of Kadai is examples of curved surfaces

→ For measuring the volume of liquids in laboratories like milk and oil etc., they use measuring cylinders

→ The volume of the box is = Length × Breadth × Height

→ Measure:‘ The unit used to know the size and weight of an object

→ The standard unit of area: A level of quality

→ Volume: The extent of space occupied by a body

→ Regular Surface: A systematic area whose length and breadth can easily measure

→ Irregular Surface: An unsystematic, changeable area whose length and breadth cannot easily measure

→ Rectangular body: A plane figure with four straight sides and four right angles. with opposite sides are parallel and of equal length.

→ Measuring cylinder: A long hollow tube which is using to measure the volume of liquids and solids

→ Graph Paper: A paper with equal designs and used to measure the area of irregular surface bodies

→ Yard: The distance between nose and tip of the middle fingers

→ Area: The surface occupied by an object

→ Handspan: The gap between thumb line and little finger

→ Cubit: The length between elbow and tip of the middle finger

→ Tarragona: A famous rural game in ÆP. gilildanda (karrabilla)

→ Feet: 12 inches of length in feet

→ Scale: The universal unit to measure length and width

→ Meter: 100 cm length is a meter

→ “Live and Let Live”:

You must have noticed that the volumes of liquids are written ¡ri ml while those of solids are written in cm^{3}. Do you know the relation between these two units? The two units are related as follows: 1 ml = 1 cm^{3}