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Material Properties

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Curipod generated lesson: "Material Properties". #1-4

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kasey.obrien

Updated 5 months ago

1. Word cloud
120 seconds
Name 1-2 types of material in your backpack
2. Slide
60 seconds
Different materials have different properties - like being hard or soft, light or heavy, and shiny or dull. These properties can help us decide which materials are best for different jobs. We can also change materials to make them stronger, lighter, or more flexible.
Exploring Material Properties
3. Slide
60 seconds
Density - the amount of mass per unit of volume of a material. Melting Point - the temperature at which a material changes from a solid to a liquid. Conductivity - the ability of a material to transfer heat or electricity.
Concepts:
4. Slide
60 seconds
First up, let's talk about density. Density is all about how much stuff (mass) is packed into a certain amount of space (volume). Think about a heavy rock and a light feather that are the same size. The rock has a higher density because it has more mass packed into the same space as the feather. So, if you had a big bowl of rocks and a big bowl of feathers, the bowl of rocks would weigh a lot more because they have a higher density!
Density
5. Slide
60 seconds
Next, let's talk about a melting point. This is the temperature at which a solid turns into a liquid. You might have seen this happen when you heat up an ice cube and it turns into water. That's because the melting point of ice is 32 degrees Fahrenheit (0 degrees Celsius). But did you know that different materials have different melting points? For example, chocolate has a lower melting point than steel, which means it melts at a lower temperature.
Melting point
6. Slide
60 seconds
Finally, let's talk about conductivity. This is all about how well a material can transfer heat or electricity. Think about a metal spoon and a plastic spoon. If you put both spoons in a hot cup of soup, which one do you think will get hotter? The metal spoon! That's because metal is a better conductor of heat than plastic. The same goes for electricity - some materials, like copper, are better at conducting electricity than others.
Conductivity
7. Slide
60 seconds
The strength of a material can be affected by its temperature. A material can become stronger at higher temperatures or weaker at lower temperatures. The colors and patterns of materials can be changed through a process called anodization. Some materials can be used to generate electricity when subjected to external pressure or strain.
Did you know?
8. Open question
300 seconds
What are some common properties of materials that are in your bag or in your desk?
9. Open question
300 seconds
How can we measure the properties of a sold material, such as the big red table in the classroom?
10. Open question
300 seconds
How can we identify something as metal?
11. Drawings
450 seconds
Brain break: Draw a monster with 5 arms and 3 legs!
12. Poll
60 seconds
Which of these materials is the most flexible?
  • Rubber
  • Plastic
  • Metal
13. Poll
60 seconds
Which material is the best conductor of electricity or heat?
  • Copper
  • Plastic
  • Wood
14. Poll
60 seconds
Which material can be easily shaped or molded when heated?
  • Plastic
  • Wood
  • Glass
15. Poll
60 seconds
What type of material will sink in water?
  • Denser than water
  • Less dense than water
16. Poll
60 seconds
What type of material will rust?
  • Metal
  • Glass
17. Open question
180 seconds
Work together in pairs: What are three different properties of a material that can be measured in a laboratory?

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