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The clue is in the name. Plastic means 'shapeable'. When they are first made these substances are soft enough to be squeezed out like toothpaste, flow into moulds with intricate shapes, rolled into thin sheets and be stamped into shapes like trays. When they cool they set in the new shape. Some set permanently and these are thermosetting substances such as we use for worktops. Others regain their plasticity when they are reheated carefully and we call them thermoplastics. Polythene is a familiar thermoplastic.

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How Tupperware made?

Tupperware is made from a type of plastic known as polyethylene, which is molded into various shapes to create airtight containers. The manufacturing process involves melting the plastic and injecting it into molds to form the desired shapes. After cooling, the containers are trimmed and assembled with airtight seals, ensuring they are durable and functional. The final products are then tested for quality before being packaged and distributed.


Why do people make lots of things out of plastic?

People make lots of things out of plastic because it is lightweight, durable, and versatile, allowing for a wide range of applications across various industries. Its cost-effectiveness and ease of production make it an attractive option for manufacturers. Additionally, plastic can be molded into complex shapes and is resistant to moisture and chemicals, which further enhances its utility in everyday products. However, the environmental impact of plastic waste has led to increasing scrutiny and calls for more sustainable alternatives.


Why are tool handles made of wood or plastic?

Tool handles are typically made of wood or plastic because these materials provide a good balance of strength, durability, and comfort. Wood offers a natural grip and is shock-absorbent, making it comfortable for extended use, while plastic is lightweight, resistant to moisture, and can be molded into ergonomic shapes. Both materials can be produced at a relatively low cost, making them practical choices for a wide range of tools. Additionally, they can be easily manufactured and customized to suit various applications.


How would you measure the area of a state?

If you have a map (to scale) or survey, then you can take measurements off that. If it is not a rectangle, then you will need to divide it into rectangles or other known shapes that the area can be calculated using formulas. Many counties have appraisal districts or property tax authorities, and some of them have surveys available in PDF format.


What is the circumference of a 20 oz plastic water bottle?

The circumference of a 20 oz plastic water bottle can vary based on its specific design, but a typical 20 oz bottle has a diameter of about 2.5 to 3 inches. Using the formula for circumference (C = πd), if we take an average diameter of 2.75 inches, the circumference would be approximately 8.63 inches. Keep in mind that actual measurements can differ slightly between brands and bottle shapes.

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