Unit 2 objects and materials

UNIT 2: OBJECTS AND MATERIALS NATURAL SCIENCE FIRST LEVEL PRIMARY

Mª Isabel López

CEIP SANTA ANA MADRIDEJOS (TOLEDO)

 WHICH OBJECTS CAN YOU SEE?  WHAT MATERIALS ARE DIFFERENT OBJECTS MADE OF?

NATURAL MATERIALS

MAN-MADE MATERIALS

PROPERTIES OF MATERIALS

PAPER

PLASTIC

SOFT

RECYCLE

WOOL

GLASS

HARD

REDUCE

CLAY

STEEL

SMOOTH

REUSE

LEATHER

FLEXIBLE

COTTON

ROUGH

WOOD

ELASTIC

COAL

TRANSPARENT

IRON RUBBER

WEIGHT OF AN OBJECT

VOLUME OF AN OBJECT

THE THREE R’s

The objects around you are made of many different materials.

PLASTIC

Chairs, tables, buckets and bottles are made of plastic.

METAL

Spoons, forks, knives and keys are made of metal.

WOOD

Furniture is made of wood.

GLASS

Jars and cups are made of glass.

LEATHER

Hand bags and shoes are made of leather.

COTTON

T-shirts are made of cotton.

PAPER

Books and bags are made of paper.

CLAY

Pots and money boxes are made of clay.

WOOL

Scarfs, hats and gloves are made of wool.

WHERE DO MATERIALS COME FROM?

NATURAL MATERIALS

MAN-MADE MATERIALS

NATURAL MATERIALS

They come directly from plants, animals or the ground.

STONE

WOOL

CLAY

comes from the nature

comes from the sheep

comes from the sand

LEATHER

COTTON

WOOD

comes from an animal skin

comes from the cotton plant

comes from the tree

COAL

IRON

RUBBER

comes from the coal mine

comes from the iron mine

comes from the tree

MAN-MADE MATERIALS

They are obtained from natural materials through chemical processes.

PLASTIC

GLASS

STEEL

PAPER

PROPERTIES OF MATERIALS Materials have different properties. We can choose the best material to make different objects, depending on its properties.

SOFT

Paper, cotton and fabric are soft. They can be easily deformed.

HARD

Clay and wood are hard. We can´t cut them easily.

SMOOTH

A smooth surface is something that is perfectly regular.

FLEXIBLE

ROUGH

ELASTIC

TRANSPARENT

Leather and paper are flexible. They can bend without breaking.

A rough surface is something with irregularities.

A rubber band is elastic. It can stretch and return to its original shape.

Glass is transparent. We can see through it.

WEIGHT OF AN OBJECT All objects and materials have weight and occupy space.

The weight of an object depends on its size and on its material.

A lorry is heavier than a bicycle because it is bigger.

A metal box is heavier than a paper box.

We use scales to weight objects.

VOLUME OF AN OBJECT Volume is the space an object occupies.

All objects have volume.

For example, a car occupies lots of space and a crayon occupies little space.

DOES IT FLOAT OR SINK? Some objects float and some objects sink in water..

REUSE

RECYCLE

REDUCE

They help us take care of the Earth and its limited resources.

RECYCLE

PAPER

PLASTIC

GLASS

REDUCING what we use

REUSING things twice or many times

WHAT HAVE YOU LEARNT IN THIS LESSON?

Let’s talk about this picture.

OBJECTS AND MATERIALS