Completar frases MatterVersión en línea Fill the gaps por PABLO MARTÍNEZ PEÑA 1 matter liquid Everything volume states gas three solid Matter is everything that has got mass and ( occupies space ) . It is formed by tiny particles called atoms and can have any shape or colour . around us is made of . We can find it in different : , and , depending on the behaviour of the atoms that form it . 2 volume Solids have got a fixed shape and a fixed . This is an example of water in a solid state . 3 containe shape changes Liquids have got a fixed volume but their depending on the 4 expand fill got or space Gases haven ? t a fixed volume a fixed shape . They to all the availabl e 5 volume characteristics compare mass measure Matter has got different properties . Properties are the that we use to and matter . Some of these properties are general to all matter . These are and . 6 gravity Weight amount Mass same scales matter not Mass object measured grams impact weight Mass is the total of that an has got . It is in or kilograms and we use to measure it . is the as . ? is the amount of matter that something contains and it does not change . ? is the result of the of on something , so it changes depending on its location . 7 measured flasks cubic centimetres space measuring Volume is the amount of that something takes up . It can be in ( cm3 ) or millilitres ( mL ) . We measure the volume of matter using beakers or . 8 properties colour differentiate hardness not elasticity density The specific of matter are the characteristics that one type of matter from another . They include , , , malleability and . These characteristics do change because they are specific to each substance . 9 atoms volume tight mass low Density is the relationship between the and the of an object . If the are packed together , the object has got a high density . If the atoms are packed loosely , the object has got a density . 10 original Elasticity is the capacity of a material to return to its shape when it is deformed . Some materials break when we try to deform them . Other do not change shape . 11 scratched Hardness refers to how resistant a material is to being . It can be confused with malleability , which is the ability to deform under pressure without cracking or breaking . Metal , for example , is hard but it is also malleable . 12 protons magnetic movement electrons charge together electrical All the different types of matter in the Universe are made up of atoms . Atoms are the basic particles that form all the matter in the Universe . They are the smallest units of matter that have got all the properties of the element they form . Atoms are made up of smaller particles that work as a unit . These particles are , and neutrons . They carry an , which causes in the particles . The attraction between positive and negative particles is what holds the atom . 13 protons pure Atoms atoms electrons easily ach atom has got an atomic number , which is the number of it has got in the nucleus . in the same substance have got an equal number of protons and , so they can be identified . Each kind of atom forms a substance . Atoms organise to form substances and objects . There are only about 100 types of in the world , but there are millions of different substances because of the different atom combinations . For example , two hydrogen molecules and one oxygen molecule make water . 14 same before physical chemical destroyed transformed Matter can neither be created nor , it can only be . Matter changes all the time . Changes in matter can be physical or . A change happens when the matter is the substance both and after the change . Look at this example , the lemon is still a lemon after being cut into slices ; its chemical composition has not changed . 15 substance A chemical change happens when a new with a different chemical composition results from the change . Look at the example below , burning wood is a chemical change because the result is ash , which is a different substance . 16 state state size same shape position Physical changes affect the of the substance , but not its properties . The matter in the substance stays the . Examples of physical changes are : Changes of ( such as water evaporating ) . Changes of or appearance ( such as cutting or deformation ) . Changes in ( such as expansion due to heating ) . Changes in ( caused by movement or force ) . 17 burning changes different Chemical changes affect the properties of matter so it becomes a substance . Examples of physical changes are : Combustion ( ) . Rusting ( when metals change as a result of exposure to oxygen ) . Photosynthesis ( transformation in plants ) . Digestion ( transformation in living beings ) . Fermentation ( using microorganisms ) . 18 pure mixtures two one Matter can be classified in different ways and one of them is to look at its composition . There are substances and . Pure substances exist in their basic form and can be extracted from nature . They are made up by only type of matter , such as aluminum . Mixtures contain at least pure substances , such as steel . 19 Pure same cannot physical substances are formed from the type of atoms or molecules and their composition that cannot be changed . They exist in their basic form , they be separated into smaller components or substances . They have got their own set of and chemical properties that differentiate them from others . These properties are essential to identify them . 20 components mixture components two substances Mixtures are a combination of or more pure substances . We call them . The properties of the pure substances are combined . Sand is a of different substances . A sandcastle is a mixture of sand and sea water that we give shape to using our hands and a bucket . The properties of a mixture depend on the properties of its . They also depend on the proportion of each of the . In other words , the greater the amount of a pure substance in a mixture , the more similar it will be to the original properties of that pure substance . 21 cannot mixtures composition Heterogeneous Homogeneous heterogeneous We classify mixtures into mixtures and homogeneous . mixtures . We can identify the different components with the naked eye . We can separate the components by using different methods . These mixtures haven ? t got a uniform composition . Salt mixed with pepper is a heterogeneous mixture . We can see the different components and separate them . mixtures . We distinguish the components by looking at them . These mixtures have a uniform . Saltwater is a homogeneous mixture . We cannot see the salt and minerals because they are dissolved .
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