Rubber
Rubber is a natural polymer that is made from the milky sap, or latex, of certain plants. It is a versatile material that has many important uses in our everyday lives.
Properties of Rubber:
- Elasticity: Rubber has the ability to stretch and then return to its original shape when the stretching force is removed.
- Insulation: Rubber is a good insulator of both electricity and heat, making it useful for electrical wires and as a material for protecting against hot surfaces.
- Waterproof: Rubber is resistant to water and is often used in products such as rain boots and waterproof seals.
- Durable: Rubber is long-lasting and can withstand wear and tear, making it suitable for tires and other products that need to endure a lot of use.
Uses of Rubber:
Rubber is used in a wide variety of products, including:
- Tires for vehicles
- Elastic bands and clothing
- Footwear, such as sneakers and rain boots
- Seals and gaskets for machinery
- Medical gloves and other healthcare products
Study Guide:
Here are some key points to remember about rubber:
- What is rubber made from?
- What are the properties of rubber?
- What are some common uses of rubber?
- Why is rubber a valuable material in our everyday lives?
Understanding the properties and uses of rubber can help us appreciate its importance and make informed choices about the products we use.
.◂Science Worksheets and Study Guides Third Grade. Relationships among living things
Study Guide
Relationships among living things 
Activity Lesson
Relationships Among Living Things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Create representations to explain the unique and diverse life cycles of organisms other than humans (e.g., flowering plants, frogs, butterflies), including commonalities such as birth, growth, reproduction, and death.
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.