MATTER, MATERIALS AND FORCES

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Tercero NATURAL SCIENCE Flashcards on MATTER, MATERIALS AND FORCES, created by MP LLORENS ESTARELLES on 11/16/2020.
MP LLORENS ESTARELLES
Flashcards by MP LLORENS ESTARELLES, updated more than 1 year ago
MP LLORENS ESTARELLES
Created by MP LLORENS ESTARELLES almost 2 years ago
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NATURAL SCIENCES MATTER, MATERIALS AND FORCES YEAR 4 UNIT 7
Matter Everything that we can see, smell and touch.
The amount of matter in an object. Mass
Volume How much space an object occupies.
Solid Has got a fixed shape.
Takes the shape of the container it is in, cannot be compressed. Liquid
Gas It has no fixed shape. It can be compressed. It can expand.
Colour, taste, smell and texture, are examples of these. These are properties we can perceive through our senses.
Hardness The property of a material that cannot be scratched easily. Diamonds are hard. Chalk is soft.
The property of a material that can be stretched and recovers its shape. Elasticity A Rubberband is elastic
The property of a material that bends well without breaking. Flexibility Paper or leather are flexible. Glass is not.
A material that is difficult to bend. It is rigid For example, glass.
Transparency Light can pass through it.
Opaque Doesn’t let light through.
How easily an object breaks. Tenacity
Force An action that changes the movement of an object or its shape.
At a distance force Causes an object to change its movement or shape without touching it.
A force that causes an object to change its movement or shape by touching it. Contact Force
Gravity A force that exists between all objects with mass. It causes things to fall to the ground.
A force that repels or attracts metal objects. Magnetism
Found in nature. Iron and aluminum are examples. Minerals
The opposite of weakness. Strength
Another word for materials. Substances
Weight How heavy an object is.
Common Materials Are used daily: wood, plastic, metals, fibres, glass and combustibles.
A natural material we get from trees. It is strong and slightly flexible. It's used for making furniture and paper. It can provide light and heat by combustion. Wood
Plastic It is an _____________material We get it mainly from ___________ There are ___________ types. It's got many uses: __________, _____, ________
They are found in nature in the form of minerals. They are strong and hard. Used to make: tools, ships, aeroplanes, cars ... Metals
Fibres Are __________ and strong. We use them to make ___________ and then make clothes. Some are ___________: cotton and ________ Some are man-made from petroleum: __________.
It is a man-made material. We get it by heating sand and mixing it with minerals. We use it for windows, kitchenware, marbles ... Glass
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