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EXERCISE

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READ, MEASURE AND COMPARE VOLUME OF LIQUIDS

We use beaker or cylinder to measure the volumes of liquids. We read scales to the nearest litre or millilitre.

The volume is 3o ml. The volume is 40ml

Reading the measurement volume of liquid

Reading the measurement volume of liquid

When measuring the volume of a liquid it is important to remember that liquids often adhere to surfaces. Place some liquid in a graduated cylinder and look at the meniscis (where the liquid meets the air). Notice that the meniscis is bent such that the edges are higher than the center. To get an accurate measure of volume, read the middle (lowest point) of the meniscis. It is also important to have your eyes at the same level as the meniscis when reading the measurement.

Measuring Cups

Liquids are measured using tools called measuring cups. Measuring cups help us to use the right amount of liquid.

As you fill the measuring cup with liquid, you need to look at which number the liquid is filled to, to determine how much liquid you have.

A measuring cup can hold more than 1 "cup" of liquid (a cup is equal to 8 fluid ounces, see US Standard Volume to learn more). This measuring cup holds up to 4 cups of liquid. If the liquid goes all the way to the 3, then there are 3 cups of liquid. Between the numbers, you would find fractions of a cup. 2 cups of a liquid is the same thing as 1 pint. So this measuring cup also holds 2 pints (4 cups equals 2 pints).

Measure volume of liquid

The term volume of liquid refers to the measure of capacity. The term of capacity is used to measure of substances that can poured, that is, fluids. Capacity is measured in millilitres(ml) and litres (l) in the metric system.

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