• To measure density take a sample and ( take it's mass in grams) and (take it's volume in centimeter cube ).

• density=mass/volume.

MEASUEING MASS

• To measure mass their are many tools .

• Example :

• BEAM BALANCES -

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• This contain a beam in the middle and two plates on both side , each side a material can be kept and the material having more mass will go down and material having less mass will go up.

• SPRING BALANCE

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• It contain a spring in a particular tension and a scale when we hang a object on it the spring will be pulled and it shows the mass with the help of the scale .

• ELECTRONIC BALANCE -

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• In this we will keep the material on the top of this and with the help of electronic device it show the mass of the material on the screen .

• MEASURING VOLUME

• To measure volume their are many ways .

• Example:

• Using scale -

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• In this we should take a scale and measure the length ,width ,height of the material and multiply all then we will get the volume

• MEASURING CYLINDER :

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• In this we can measure the volume of a liquid by pouring the liquid in this and we can see the measurement in the scale.