Natural materials are substances that occur in nature and are not man-made. These materials are found in the environment and can be used for various purposes. They are often used to make products such as clothing, shelter, and tools.
Natural materials have various properties that make them useful for different purposes. These properties include:
Durability: Many natural materials are strong and durable, making them suitable for construction and long-lasting products.
Flexibility: Some natural materials, such as wool and leather, are flexible and can be easily molded or shaped into different forms.
Insulation: Certain natural materials, like wool and wood, have excellent insulation properties, making them suitable for use in clothing and buildings.
Renewability: Some natural materials, such as wood and cotton, are renewable resources, meaning they can be replenished naturally over time.
History and Nature of Science: A student should understand the history and nature of science. A student who meets the content standard should:
Develop an understanding that historical perspectives of scientific explanations demonstrate that scientific knowledge changes over time, building on prior knowledge.
Develop an understanding that scientific knowledge is ongoing and subject to change as new evidence becomes available through experimental and/or observational confirmation(s).