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This is a Clilstore unit. You can link all words to dictionaries.

Materials - Sl gr

What is a material?

It is what objects are made of.

What are objects made of?

Objects are made of materials.

Is plastic a material?

Yes, it is.

Is wood a material?

Yes, it is.

Is chair a material?

No, it isn't.

Is paper a material?

It can be a material.

Can you see materials in your classroom?

Yes, I can.

Can you see objects in your classroom?

Yes, I can.

Give three examples of objects you can see in your classroom!

We can see a pencilcase, a book and a wall.

Give three examples of materials you can see in your classroom!

We can see paper, glass and wood.

Give a property of materials!

A property of materials is waterproof.

What is waterproof?

Waterproof means that a material doesn't take in water.

Is a book waterproof?

No, it isn't.

Is a door waterproof?

No, it isn't.

Is a wall waterproof?

Yes, it is.

Can a material be absorbent?

Yes, it can.

What is absorbent?

Absorbent materials take in water.

Do you know any absorbent materials?

Yes, I do.

Give three absorbent materials!

Three absorbent materials are cotton,  paper and wool.

Are absorbent materials waterproof?

No, they aren't. Absorbent materials are opposite to waterproof materials.

What does the word shiny mean?

The word shiny means that an object reflects light.

Is a board shiny?

Yes, it is.

Are my shoes shiny?

No, they aren't.

Is the door shiny?

No, it isn't.

How do we group materials?

We group materials by their properties.

Give a group of materials!

A group of materials is smooth.

Give an example of a smooth material!

An example of a smooth material is cotton.

What do we use cotton for?

We use cotton to make clothes.

What do we use to group materials?

We use a branching tree or a Carroll diagram to group materials.

Give other properties of materials!

Materials can be hard, see-through, flexible, rough and elastic.

Give an example of a hard material!

An example of a hard material is glass.

Give an example of a see-through material!

An example of a see-through material is glass.

Give an example of a flexible material!

An example of a flexible material is paper.

Give an example of a rough material!

An example of a rough material is sandpaper.

Give an example of an elastic material!

An example of an elastic material is rubber.

How do we group objects?

We group objects by the material they are made of or the properties of their material.

Give a group of objects!

A group of objects is see- through.

Give three see-through objects!

Three see-through objects are glass, a window and plastic.

What do we use to group objects?

We use a branching tree or a Carroll diagram.

What is a branching tree?

It is a method to sort objects into groups by asking questions answered with Yes or No. 

What is a magnet?

A magnet is an object that attracts some materials.

What materials does a magnet attract?

A magnet attracts magnetic materials.

What are non-magnetic materials?

Those are materials that a magnet doesn't attract.

Are all metals magnetic?

No, all metals aren't magnetic.

Give three magnetic metals!

Magnetic metals are iron, nickel and steel.

Give three non-magnetic metals!

Non-magnetic metals are gold, silver and aluminium.

What materials do we use to make objects?

We use the suitable materials.

Which material is suitable to make a book?

Paper is suitable to make a book.

Which material is suitable to make a window?

Glass is suitable to make a window.

Which material is suitable to make a chair?

Wood is suitable to make a chair.

Which material is unsuitable to make a chair?

Paper is unsuitable to make a chair.

Which material is unsuitable to make a car?

Wood is unsuitable to make a car.

Why do people choose different materials to make objects?

People do so, because each material has different properties.

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