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Classification of Materials

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- A property is a quality or trait of something.
- To classify objects means to group them by their shared properties.
- We can classify objects based on properties like color, texture or hardness.
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Discussion Questions
- Before VideoWhat kinds of things might you sort into different groups?ANSWER
You can sort laundry, toys, food in the fridge, Halloween candy and many other things as well.
Candy, beads, clothes and coloring supplies are some examples of things that can be sorted by color.
Some things that have a rough texture include rocks, the bark of a tree or the road. There are many other examples of things with rough textures.
Some examples of things with a smooth texture include a slide, your skin or your hair. There are many other examples of things with a smooth texture.
Some things that are best when soft include blankets, pillows, clothes and dogs.
Some ways you could sort a rock collection are by size, color, shape, hardness or shininess.
- After VideoWhat are some different properties by which you could classify material?ANSWER
Some properties you can classify materials by include color, texture or hardness.
You can classify your clothes by color, patterns or texture.
You can classify materials by the textures of smooth or rough.
Some things that are better with a smooth texture are a slide, a bowling lane or the tile on the floor.
Some things that are more useful with a hard surface include a table, a helmet or a bowling ball.
It wouldn’t be hard enough to push a nail through wood. This is why hammers are made of strong materials like metal.
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Vocabulary
- Classify DEFINE
To group objects based on shared qualities or properties.
- Material DEFINE
Any solids, liquids or gas.
- Property DEFINE
A quality of something.
- Texture DEFINE
How rough or smooth something is.
- Rough DEFINE
Having an uneven surface, such as sandpaper.
- Smooth DEFINE
Having a very flat surface, such as glass.
- Classify DEFINE
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Reading Material
Download as PDF Download PDF View as Seperate PageCLASSIFICATION OF MATERIALS DEFINITIONClassify means to group objects based on shared qualities or properties. Scientists and engineers often put objects into groups that have the same property, such as color, hardness or texture. Knowing properties is important when you make things.
To better understand how classification works…
CLASSIFICATION OF MATERIALS DEFINITION. Classify means to group objects based on shared qualities or properties. Scientists and engineers often put objects into groups that have the same property, such as color, hardness or texture. Knowing properties is important when you make things. To better understand how classification works…LET’S BREAK IT DOWN!
We can classify materials by color.
When we classify objects based on color we put all the objects with the same color together in one group. We can do this with clothes, paper, candy and many other things.
We can classify materials by color. When we classify objects based on color we put all the objects with the same color together in one group. We can do this with clothes, paper, candy and many other things.We can classify materials by texture.
Texture describes how smooth or how rough something is. A book is smooth, while a brick is rough.
We can classify materials by texture. Texture describes how smooth or how rough something is. A book is smooth, while a brick is rough.Texture is important when designing things.
A slide needs to be smooth to make it easy to slide down. Can you imagine what a rough slide would feel like?
Texture is important when designing things. A slide needs to be smooth to make it easy to slide down. Can you imagine what a rough slide would feel like?We can classify materials by hardness.
Some things like wood are hard. Some things like blankets are soft.
We can classify materials by hardness. Some things like wood are hard. Some things like blankets are soft.Hardness is important when choosing materials that need to be strong.
Building materials need to be hard. They need to be hard in order to build a strong and sturdy house or building.
Hardness is important when choosing materials that need to be strong. Building materials need to be hard. They need to be hard in order to build a strong and sturdy house or building. -
DIY Activity Guide
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Teacher Resources
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