Let's learn about materials
Science - Year 2.
martes, 30 de mayo de 2017
martes, 2 de mayo de 2017
Materials and their properties
Let's learn about materials and their propierties.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh25U42wv0biaaNwnmLRKesnRjbOPmNel6C2zWLfH7gcTznTWFZhQhwcaU8IlEkSgOLlbPOZaD5aAyv4vmWepTvWS9efmst5OdCJL-WLE3HwAlclP2lyrUhjdm_i8Rnm2OCq26MYOQra8lK/s400/Different+kind+of+materials.jpg)
We can see a lot of different materials in a house.
Some materials are better for a purpose than others.
- Windows are made of glass because glass is transparent.
- Walls are made of bricks because bricks are hard.
- Doors are made of wood because wood is smooth.
- Stairs are made of stone because a stone is opaque.
- Taps are made of metal because metal is rigid.
- Sockets are made of plastic because plastic is soft.
- Curtains are made of fabric because the fabric is soft.
- Sockets are made of plastic because plastic is soft.
- Curtains are made of fabric because the fabric is soft.
![Presentation about different types of materials](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh8PUatPE5qr-ZPyDlKFM2lQ6M3xRzkILgKZla2m_BHat6nygxBkXur6z0Sjg-Y1IK4XMepOyQRsNS8UGOkUiRP1s5CfFkvneCzdn6ajjw25IL4dLa93GMm2BVvWYa9h_ytGkakXopz6W1O/s320/Materials4.jpg)
Quiz about materials
Click on the link above to start the Quiz.
Natural and manufactured materials
Natural materials are made by nature.
Manufactured materials are made by people.
Bend, twist, stretch, squash
Some materials are rigid. We cannot bend, twist,
stretch and squash them.
We can bend, twist, strectch and squash some
materials and they remain in the new shape.
We can bend, twist, strectch and squash some
materials and they go back to the original shape.
Magnetism
Some objects are attracted to magnets.
These objects are magnetic.
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