Volume: The amount of space that an object takes up or occupies.














Also volume is determine by using a formula for  regular shaped object and irregular shaped object using a graduated cylinder with water inside it.             








  
 The formula is: Length* width* heigth..

Density: Is the measure of the amount of mass in a given volume.The formula for density is mass/ volume.

Physical and chemicals changes 

Examples:

Physical changes: A characteristic of a substance that can be observed and measured without changing the the identity of the substance.

 Electrical conductivity: the measure of how well and electrical current can move thruogh a substance.

Solubility: ability of a substance to dissolve in an other substance

malleability.

Malleability: the ability of a substance to be rolled or pounded into various shapes.

Chemical Changes: describe a substances ability to change into a new substance with different properties. 

  Flammability: The ability of a substance to burn.

    Reactivity: Is the ability of a substance to interact with another substance and form a new one 

Weight and Mass

Mass: Is the measurement of the amount of matter in an object.
Weight: Is the measure of the gravitational forces in an object.

Differences:

The weigth depends on the location and gravitational forces of the place. For example: a ball on the moon doesn´t have the same weigth that it has on the Earth. This is because the Earth has 9.8% of gravity and the moon has only 3.6%.

Instruments of measurements:

Weigth: It is measured with devices such as the spring scale,shown below:

Mass: It is measured with devices like the triple-beam-balance. This balance compares an object´s mass to know standars of mass called countermass.

Matter

What is matter?

Matter is everything that has mass and takes up space. However, not everything is it.
For example: The next image below shows some examples about things that has mass.

Introduction

 

This blog will include many topics, all of them related with science. It will explain many important processes indispensable for some things in the world. Also you will learn that all things on the world have meaning and are related with life