By Renata Chebotareva Mass Volume and Density are

By: Renata Chebotareva

Mass, Volume and Density are all physical properties of matter. Matter is everything in the universe that takes up space. It makes up everything that you can see, feel, taste or touch. Mass, Volume and Density are all measurements that we can take of material objects. We measure stuff to understand it better and to compare it to other stuff.

Density

Density measures how heavy something is for it’s size. We can calculate Density by dividing an objects mass by its volume. For example, the mass of something was 250 grams and the volume was 1, 000 cubic centimeters… 250/1, 000 = 0. 25. So the Density of this cube is 0. 25 grams per cubic centimeter!

Formulas Mass/Volume = Density Mass 16, 000 g Volume 800 cm 3 Brick 1, 000 g 625 m. L Soccer Ball 250 g Ring 10 cm 3 Density 16, 000 g 800 cm 3 = 20 g/cm 3 1, 000 g 625 m. L = 1. 6 g/m. L 250 g 10 cm 3 = 25 g/cm 3

The metric system is used all over the world, so that help scientists compare their discovery's and ideas without too much confusion. Measurements also help us standardize stuff. For example we measure time in hours, minuets and seconds. Can you imagine if we didn’t have time? In the lab we used the metric system to measure stuff. Its basic units are the meter for length the liter for volume and the gram for mass. And if we couldn’t measure the mass, volume and density of objects, we’d be just as confused about what they are and why they act the way they do.

Mass

Mass is a measurement of how much matter an object contains. In a lab, we measure it with a balance or a scale. Remember that weight is different than mass. Weight is actually a measurement of the effect gravity has on a object. Weight is measured in Newton's and mass is measured in grams. For example, if something weighs 2. 5 Newton on earth, it will weigh 1/6 th as much on the moon!

Formulas Volume x Density = Mass Volume Density Mass 160 m. L x 5 g/m. L = 160 m. L 5 g/m. L Can of Pop 800 g 80 m. L x 2. 5 g/m. L = 80 m. L 2. 5 g/m. L 200 g Apple 50 cm 3 x 10 g/cm 3 = 50 cm 3 Banana 10 g/cm 3 500 g

Volume

Volume measured of how much space something takes up. If the object is a solid, the volume is measured in cubic centimeters and you can calculate it by multiplying its length, by its width, by its height. Liquid volume is measured in liters. One milliliter takes up the same amount of space as one cubic centimeter.

Its easy to measure the volume of a cube, but is a littler more difficult with an irregularly-shaped object…like a pebble. Matter displaces liquid – that’s a fancy way of saying it takes up space. . If you can measure the amount of liquid that the object displaced, then you’ve found the volume of the object! For example, If I had a beaker of water that had a volume of 50 milliliters, after I dropped the rock into it, the water level rose to 70 milliliters. So we know that the pebble has a volume of 20 milliliters, or 20 cubic centimeters, since it’s a solid.

Formulas Mass/Density = Volume Mass 100 g Density 0. 25 g/m. L Pillow 3, 000 g 30 g/cm 3 Book 100 g Pencil 0. 625 g/cm 3 Volume 100 g 0. 25 m. L = 400 m. L 3, 000 g 30 g/cm 3 = 100 cm 3 100 g 0. 625 g/cm 3 = 160 cm 3

Points to remember! � Density measures how heavy something is for it’s size. � Mass/ Volume = Density � Mass is a measurement of how much matter an object contains. � Volume x Density = Mass � Remember that weight is different than mass. Weight is actually a measurement of the effect gravity has on a object. Weight is measured in Newton's and mass is measured in grams. � Volume measured of how much space something takes up. � Mass/Density = Volume

Bibliography �Brain POP Measuring Matter �Science Basics Week 2 Density Packet �Clip Art