A thing can be made from one or
more materials and use of a
material depends upon its
properties. Now, find out about
some imp. Properties of the
materials like hardness, softness,
heavy and light etc and how do
these properties help you in
grouping things in your daily
life. Give 10 examples from your
daily life. Support them with
relevant pictures
What do you sleep on? is it hard, soft?
On your lunch plate, what do you pick up the knife for?
What would you not kick?
To find out about the important properties of materials and how they help us group things in our daily life, we need to understand the characteristics of different materials. Here are some essential properties of materials:
1. Hardness: This property refers to the ability of a material to resist indentation or scratching. Hard materials do not easily deform and can withstand pressure or force. For example, a knife blade is made of hard materials like stainless steel, which allows it to cut through food easily.
2. Softness: Soft materials have low hardness and can be easily deformed or compressed. They are often comfortable to touch or sit on. For instance, your bed or mattress is made of soft materials like foam, which provides comfort while sleeping.
3. Weight: The weight of a material refers to its mass or heaviness. Materials can be categorized as heavy or light, based on how much they weigh in comparison to other objects. For example, a brick is heavier than a foam ball.
4. Flexibility: Flexibility indicates how easily a material can bend or stretch without breaking. Flexible materials can be bent, twisted, or folded without permanently deforming. Rubber bands are an example of flexible materials.
5. Durability: Durability refers to the ability of a material to withstand wear, pressure, or damage over an extended period. Durable materials are long-lasting and do not easily break or deteriorate. Steel is a highly durable material commonly used in construction.
6. Transparency: Transparency is the property of a material that allows light or objects to pass through it without much obstruction. Materials can be transparent, translucent, or opaque. Glass is a transparent material that permits light to pass through it clearly.
7. Conductivity: Conductivity is the ability of a material to conduct or transfer heat, electricity, or sound. Some materials are good conductors, while others are insulators. Copper is an excellent conductor of electricity, widely used in electrical wiring.
8. Magnetism: Some materials exhibit magnetic properties, enabling them to attract or repel other magnetic materials. Iron is an example of a material that can be magnetized and is commonly used in magnetic objects like refrigerator magnets.
9. Density: Density refers to how closely packed the molecules or particles are within a material. Materials with higher density are heavier for their size, while those with lower density are lighter. For example, a foam cup is less dense than a ceramic mug.
10. Porosity: Porosity relates to the presence of small empty spaces or pores within a material. It determines the material's ability to absorb or let substances pass through. Sponges have high porosity and can absorb liquids efficiently.
Now, let's link these material properties to real-life examples:
1. Sleeping on a hard or soft mattress depends on personal preference. Some people prefer a harder surface, while others enjoy a softer and more cushioned mattress.
2. On your lunch plate, you pick up the knife, which is made of a hard material like steel, to cut through food effectively.
3. You would not kick a heavy object like a solid metal storage container because it may cause harm or injury due to its weight and hardness.
Please note that as an AI text-based model, I cannot provide or support pictures directly. However, you can search for relevant images on the internet using the keywords related to each example I provided.