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# Matter

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This is a presentation about matter and some of its properties. It can be useful for ESL students.

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### Matter

1. 1. MATTER By Macarena Pareja
2. 2. The fundamental properties of matter Matter is everything that forms the universe and occupies space. Any sample of matter has two fundamental properties: a) Mass  is the quantity of matter. It is measured in kilograms (kg) and grams (g). a) Volumen  it is the space occpied by a certain amount of matter. The volume of a liquid is measured in litres(l) and the volume of a solid is measured in cubic metres (m3). Scientists have found some things that don´t count. Matter cannot be a type of energy, like wind, sound, light or heat.
3. 3. Specific properties of matter Matter also has some specific properties which permit us to differentiate between different types of matter. Two examples are colour and density. OIL Water has greater density than oil. This is why oil floats. WATER
4. 4. States of matter Matter can present itself in three states:  Solid  Solids have a fixed shape and they do not adapt to the shape of the container holding them.  Liquid  Liquids adapt to the container holding them.  Gas  Gasses fill up all the space available to them. They escape from an open container. Unlike liquids it is possible to compress them: reduce their volume.
5. 5. Different materials Matter is very varied. In nature there are many different types of matter, called materials. Each one has properties which differentiate it from each other. We use natural materials collected from nature, and artificial materials which do not exist in nature and are fabricated by us from other materials. Using materials from nature we can exhaust resources; we change and pollute the environment. To avoid this it is useful to apply the rule of the three Rs: reducing consumption, reusing and recycling materials.
6. 6. Physical changes Physical changes do not change the mass of an object or the type of matter an object is made of. Physical changes are:  Deformations  the shape of an object changes.  Changes of state  the state of matter can change when it is heated or cooled.  Expansions/ contractions  increases/ decreases in volume. CHANGES OF STATE MELTING SOLIDIFICATION EVAPORATION CONDENSATION
7. 7. Chemical changes Chemical changes or chemical reactions happen when two or more substances are combined. They react to each other and they produce new substances called products. WOOD + FIRE are reacts of a combustion. This combustion produces: - Smoke. - Light. - Heat. - Ashes
8. 8. Pure substances A pure substance is any substance that are formed for only one type of matter. Examples of pure substances are: WATER IRON QUARTZ GOLD
9. 9. Mixtures and solutions Mixtures A mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. Some examples are the air, salt water and olive oil. Solutions They are mixtures in which we cannot distinguish the different components. One example is salt water: it is impossible to distinguish the salt in the water. Mixtures and solutions can be separated using physical means for instance, filtration, evaporation, distillation or chromatography.
10. 10. SUGAR + WATER Is a solution GRANITE It is a mixture made up of quartz, mica and feldspar.
11. 11. If you want t know more visit http://www.symbaloo.com/mix/matter4kids