miércoles, 18 de marzo de 2020

Resumen Matter


UNIT 4 MATTER

THE PROPERTIES OF MATERIALS

·       PHYSICAL PROPERTIES

Hard: Difficult to scratch or cut easily.
        Soft: Easy to scratch or cut.

        Tough: Difficult to break.
        Fragile: Easy to break.

        Plastic: Easy to bend.
        Elastic: Go back to their shape after we squash or stretch   them.

·       SOLUBILITY

       It describes if a material can dissolve in water.
        Soluble: Materials that dissolve.
        Insoluble: Materials that don´t dissolve.

·       THERMAL CONDUCTIVITY

       It describes if a material can get very hot.
        Thermal Conductors: Materials that can get hot.
        Thermal Insulators: Materials that don´t get hot.


THE PROPERTIES OF MATTER

·       VOLUME
       
        It is the amount of space that matter occupies.
        Unit: Cubic centimetres (cm³).

·       MASS

        It is the amount of matter in an object.
        Unit: Grams and kilograms.

·       DENSITY
       
        It is the amount of mass that there is in the volume of an    object.
        To find out the density of an object, we divide its mass by its      volume.


CHANGES IN MATTER

·       PHYSICAL CHANGES
       
        The composition of the matter doesn´t change. Physical     changes can be reversed.Physical changes: shape, place,       state and temperature.

·       CHEMICAL CHANGES

        The composition of the matter changes and new matter is formed.


MIXTURES AND SOLUTIONS

     MIXTURES AND TYPES
       When two substances are mixed together they form a mixture.

        There are two basic types of mixture: a heterogeneous mixture and a homogeneous mixture,

        In a heterogeneous mixture we can see the separate substances ( For example: salad).

        In a homogeneous mixture we can´t see the separate         substances ( For example: hot chocolate). This is because one     sustance dissolves into the other. A homogeneous mixture        where one sustance dissolves in another is called solution (hot        chocolate). The susbtance that dissolves is called the solute     (chocolate powder) and the substance that dissolves it is         called the solvent (milk).

    SEPARATING MIXTURES

       Filtration: It is used to separate an insoluble solid from a  heterogeneous mixture. For example: sand and water.

        Evaporation: It is used to separate a soluble solid from a homogeneous solution. For example: salt and water.

        Distillation: It is used to separate a liquid from a solution or to separate two liquids. For example: alcohol and water.


Esquemas Ancient History

Os dejamos los esquemas en imágenes. Intentaremos volver a acceder a la aplicación más tarde para pasarlos a formato interactivo. 






Esquemas de Naturales y Sociales

Hi everyone!

Al igual que hacemos en clase, vamos a colgar los esquemas de Naturales y Sociales por puntos del tema. Os pedimos paciencia ya que queremos colgar los esquemas utilizando aplicaciones que a la par estamos aprendiendo a usar, además de los problemas que estamos teniendo con la conexión a Internet.

No se trata de que hagáis todos los esquemas en un día, sino de dosificar el trabajo.
Podéis organizar el trabajo siguiendo la siguiente secuencia en cada apartado del tema: lectura de las dos páginas, comprensión de lo leído, búsqueda del vocabulario específico, ejercicios de esas páginas, esquema y estudio de ese punto.
¡Ánimo a tod@s!
Para cualquier consulta estamos a vuestra disposición.