This unit will cover matter, its properties, and the different states of matter - solid, liquid, and gas. Matter is anything that has mass and takes up space, and can be measured by its mass and volume. The three states depend on whether matter has a definite shape and volume, with solids having both, liquids having volume but not shape, and gases having neither. The document will also discuss physical and chemical changes, mixtures, various material properties such as flexibility and conductivity, natural vs manufactured materials, and the three Rs of reduce, reuse, and recycle.

1. In this unit we are going to learn about
matter and the properties of materials.

2. Matter

 Matter is everything that we see, touch, taste or smell
that has mass and volume.

3. Matter

 MASS: We can measure
mass in grams and
kilograms.
 VOLUME: the amount
of space that matter
takes up.

4. The three states of matter: solid,
liquid and gass.

 Solids: have a definite
shape and a definite volume.
 Liquids: don´t have a definite shape,
but have a definite volume.
 Gases: don´t have a definite shape
and don´t have a definite volume.
(different balloons, different shapes…)

5. Matter

Physical change
 When we heat, freeze,
bend, twist, squash.
 Water cycle.
Chemical change
 When we burn a
substance or expose a
substance to air for
example.

6. Mixtures: is something that
contains two or more substances.

Heterogeneous Homogeneous

7. Properties of materials.

 Resistant.
 Fragile.
 Rigid.
 Flexible.

8. Properties of materials.

 Transparent.
 Opaque.
 Waterproof.
 Conductors.
(metals)
 Insulators.
(plastic, oven glove,
thermal underwear,
cork board and wood)

9. Natural and manufactured
materials

 Natural: Plants, animals
or minerals.
 Manufactured: are
made of natural
materials.

10. 
 Reduce
 Reuse
 Recycle
The Three Rs.

11. THE END