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1. Properties of Solids
Examples of solid objects, among others: books, pencils, stones, etc.
The properties of solid objects:
Has unchanged shapes and volumesHas a surface (rough or smooth)It has color2. Liquid Properties
Examples of liquid objects include: water, cooking oil, syrup, etc.
Properties of liquid:
Can flow from high to low place.The shape changes according to the container.Fixed volume.3. Properties of the gas object
Examples of gas objects are air.
The properties of a gas object:
The shape and volume vary according to the containerCan not be held, can only be feltB. Usefulness of Things
The objects around us can be utilized to meet the needs of life. Paper we use to write. Glass we use to reflect. There are also objects that come from plastic, rubber, and wood.
1. Objects of Plastic
Buckets, scoop, vegetable spoon made of plastic. Many household appliances use plastic materials. This is because plastic is cheap and durable.
Plastic can not conduct heat and electricity. Examples of objects made of plastic: umbrellas, buckets, plastic plates.
2. Objects from Paper
Paper made from bark. Bark is crushed, then processed into paper. After that, paper can be used to create various objects. The notebooks are made of paper. Newspapers, magazines, even tissues are made of paper. Paper to make tissue is very thin and smooth.
The notebook we use to write. Magazines and newspapers contain important news. Tissue is used as a cleanser. For example, to wipe the sweat. Cartons are also made of paper. Cardboard is used to wrap charcoal. Paper is very lightweight and practically carried.
3. Objects of Wood
Wood is made from plants. The nature of hard and strong wood, but easily shaped. However, wood is also easily obsolete if exposed to water. Examples of items made of wood: bed, cupboard, table.
4. Things from Glass
Glass objects have transparent properties. For example, mirrors, glasses, glasses, windows, and vases.
The window of our house from the glass. Glass is transparent. As a result, sunlight can enter the house. Without windows, the house will be dark. Because sunlight can not enter. Glass material is also easy to clean. However, glass should be treated carefully. This is because the glass is easily broken.
5. Articles of Rubber
The object of rubber is elastic and flexible. For example, motorcycle tires, balloons, and flip-flops. Motorcycle tires and cars are used to support the vehicle. Thus, the vehicle can run. Balloons are used for children's toys. When blown, the balloon will expand. The nature of the balloon is very elastic. Flip-flops are also made of rubber flip-flops used as footwear.