Rubber: Properties and Uses
Rubber is a versatile material with unique properties that make it useful in a wide range of applications. It is a type of elastomer, which means it can return to its original shape after being stretched or deformed. Here are some key points to understand about rubber:
Composition of Rubber
Rubber is made from the latex of certain plants, such as the rubber tree (Hevea brasiliensis), or from synthetic materials derived from petrochemicals. The latex is processed to remove impurities and then vulcanized, a process that involves adding sulfur to improve its strength and elasticity.
Properties of Rubber
- Elasticity: Rubber can stretch and return to its original shape, making it ideal for applications where flexibility is required.
- Insulation: Rubber is a good insulator of electricity and heat, which makes it valuable in electrical and thermal insulation applications.
- Resilience: Rubber has the ability to absorb and disperse energy, making it useful in shock absorption and cushioning.
- Water Resistance: Rubber is often resistant to water and other liquids, making it suitable for use in seals and gaskets.
- Chemical Resistance: Depending on the type of rubber, it can exhibit resistance to various chemicals, making it suitable for use in chemical processing equipment.
Uses of Rubber
Rubber is used in a wide variety of products and industries, including:
- Tires for vehicles
- Footwear, including shoes and boots
- Industrial hoses and conveyor belts
- Seals and gaskets for machinery and equipment
- Insulation for electrical wiring and cables
- Medical and healthcare products, such as gloves and tubing
Study Guide
Here are some key points to remember about rubber:
- What is rubber made from?
- What is vulcanization and why is it important in rubber production?
- List and explain four important properties of rubber.
- Provide examples of at least three different uses of rubber.
[Rubber] Related Worksheets and Study Guides:
.◂Science Worksheets and Study Guides Sixth Grade. Electromagnetism
Study Guide
Electromagnetism 
Activity Lesson
Electromagnetism Worksheet/Answer key
Electromagnetism Worksheet/Answer key
Electromagnetism Worksheet/Answer key
Electromagnetism Vocabulary/Answer key
Electromagnetism Vocabulary/Answer key
Electromagnetism
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Physics: Students will use scientific skills and processes to explain the interactions of matter and energy and the energy transformations that occur
Electricity and Magnetism: Cite evidence supporting that electrical energy can be produced from a variety of energy sources and can itself be transformed into almost any other form of energy.
Research and identify various energy sources and the energy transforming devices used to produce electrical energy: Wind (generators, wind mills); Sun (solar cells); Water (turbines); Fossil fuels (engines).
Cite examples that demonstrate the transformation of electrical energy into other forms of energy.
Electricity and Magnetism: Identify and describe magnetic fields and their relationship to electric current.
Describe how the electromagnet demonstrates the relationship of magnetism and electricity and identify common devices that demonstrate application of this relationship: Electric motors (fans, hair dryers, can openers); Electrical generators (turbine).