3. What is matter?
• Matter is anything that has mass and
occupies space.
• Matter is everywhere.
• Anything we can see, touch, taste or smell
is matter.
• Everything on our planet and in the
Universe is made of matter.
• Even you are made up of matter.
4. Describing matter
• We can identify and describe matter using
its physical properties.
• Size (big or small)
• Shape (regular or irregular)
• Colour (blue, red…)
• Texture (rough, smooth, soft, hard)
5. • We can also measure:
• Length (metres)
a tape measure
• Volume (litres)
a measuring jug
• Mass (grammes and kilogrammes)
a scale
6. The three states of matter
• Solid: solids have a definite shape and volume, if we
put them in a container the shape does not change.
• Liquid: liquids have a definite volumen but do not have
a definite shape, they take the shape of the container.
• Gas: gases do not have a definite shape and they do
not have a definite volumen either. They take the shape
of the container they are in and fill it.
7.
8. Physical changes of matter
• Change of state: We can chage the state of wáter
form solid to liquid, from liquid to gas by heating it.
• Change of shape: We can bend, twist, press and
stretch plasticie and the plasticine stays in the new
shape. We can stretch a rubber band and it will go back
to its shape when we let go.
9. Materials
• Materials are made up of matter.
• We use materials to make things.
Plastic
Wood
Glass
Paper
Metal
Fabric
10. Natural and man-made
materials
• Natural materials: we find natural materials in
nature. We obtain them form living and non-living things.
• Man-made materials: when we trasnform a
natural material into another material, we make man-
made materials.
12. Mixtures
• A mixture is something that contains two
or more different materials.
• In some mixtures we see the different
materials.
• In others is imposible to see the different
materials.
14. Energy
• Energy is the ability to do work or produce
a change.
• Thermal energy is in anything that is hot.
• Light energy
• Electrical energy
• Sound energy is in things that make noise
• Kinetic energy is in things that move
15. Machines
• A machine is something we use to make
work easier.
• We can classify machines as SIMPLE
MACHINES and COMPLEX MACHINES.
• When we put simple machines together
we make a complex machine.
• All machines use energy.
