This document discusses matter, its properties, and types of forces. It defines matter as having properties of volume, mass, density, thermal conductivity, and hardness. There are two types of matter: pure substances and mixtures. Pure substances are made of only one type of matter, while mixtures contain two or more substances and can be either homogeneous or heterogeneous. The document also describes different forces including contact forces like friction and buoyancy, and non-contact forces such as magnetism and gravity. Forces can move, stop, speed up, slow down or change the direction of objects.

1. MATTER AND FORCES
Alejandra López García
5º primaria
Curso 2014/2015

2. MATTER AND IT´S PROPERTIES:
 Volume Space matter ocupes
 Mass Amount of matter kg
 Density Amount of matter in a volume
mass/volume
 Thermal conductivity Hability of substances
for transfear heat
 Hardness Resistence of solid
 Salubility Substance that disolve and form a
solution

3. WHAT TYPES OF MATTER ARE
THERE?
 We classify matter into pure substances and mixtures.
 Pure substances One type of matter such as: truk of a tree.
 Mixtures Two or more pure substances an can be homogeneous
or heterogeneous.
 Homogeneous mixture We can not see substances that make it
up such as: the air we breathe.
 Heterogeneous mixture We can see substances that make it up
such as: salad
 There are different types of methods to separate te substances:
 FiltrationWhen we pour a juice of lemon througt a filtrer, te
solids stay in te filtrer and te liquid passes througt it.
 Evaporation When we heat a mixture of salts and water, te
liquid evaporates and lives only the solids which crystallice and
form salt crystals.
 Sieving We use a sieve to separate solids of different sizes, such
as pebbles from sand.

4. FORCES AND THEIR EFFECTS
 A force is a push o pull on an object. Forces an move, stop, speed
up, slow down and chance direction. Forces can change shape.
 Contact forces
 Friction: I the force when two objets rub
 Buoyancy: is the ability of objects to float
 Non contact forces
 Magnetism: Is a force of attraction or repulsion by magnetic
materials.
 Gravity: Is a force which attract all objects towards the ground.
 A newwword of materials
 Alloys: mixtures of two or more elements and one of them metal
 Improving our health
 New materials in everyday life
 Recent breakthrough