Materials and composites: including metals, ceramics and polymers

12 questions

1. Everything around us is made of ___. These are the substances that objects are made from. They can be natural (e.g. wood and stone) or human–made (e.g. plastic and steel).
2. What do you call the features of a material that can be observed or measured?
3. Match the following key words to their definition.
4. Which of the following materials can be transparent?
5. Match the following key words or phrases to their definition.
6. Scientific methods include observation, measurement, and manipulations (e.g. heating) to determine material properties. All these actions can be part of a scientific ...
7. Clay and sand both consist of silicates with different particle sizes. Ceramics made from clay are opaque, while glass made from sand is typically transparent. How do these different properties occur?
8. If you couldn't see them, how would you distinguish between a metal, a ceramic, and a plastic vase of the same shape and size?
9. Polymers are monomers joined together into long chains, sometimes with chemical connections between the chains. Poly(ester) and poly(propene) are polymers and specific examples of ___.
10. Match the following key words to their definition.
11. Alloys and composites both have new properties compared to their components and can't be separated by simple methods. Steel is an example of an ___, as it is a mixture of iron and other elements.
12. A practical method for scientists to determine the physical properties of materials is by conducting tests. How can you distinguish between plain and reinforced concrete if the pieces look similar?

License: OGL