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WorksheetsNatural Science - Unit 4 - Matter
Total questions: 15
Worksheet time: 12mins
What´s matter?
Matter is everything
Matter is everything that has mass and takes up space.
Matter is anything that has volume.
What´s a mixture?
Combination of 2 or more pure substances
Combination of 2 or more pure substances that are not physically combined
Combination of 2 or more pure substances that are not chemically combined
What´s a homogeneous mixture?
A mixture that has same colour and different properties.
A mixture that has a varied colour and texture.
A mixture that has a consistent colour and texture
What´s a heterogeneous mixture?
A mixture that varied colour and texture
A mixture that has same colour and texutre
A mixture that has same properties
A compound can be chemically descomposed.
Ture or False.
TRUE
FALSE
An element can be chemically descompsed.
TRUE
FALSE
A solution is a mixture of one or more liquids with one or more other substances.
FALSE
TRUE
Techniques for separating mixtures.
Filtrarion and evaporation
Distilation and disolution
All the answers above are correct.
The technique for separating and insolube solid from a mixture is called filtration.
True
False. It´s called evaporation
False. It´s called distilation
Combustion is a (a) reaction
It produces thermal energy, it´s called _________ __________
(a)
Oxidation is a chemical reaction in which two atoms win one or more electrons to oxigen atoms
FALSE. They lose one or more electrones
TRUE
In fermentation sugar and carbohydrates are transformed
TRUE
FALSE
In order to prevent rusting, cars are (a)
Diffusion occurs when ....
ligth hits a smoth surface, it´s reflected regularly
ligth hits a rough surface, it´s reflected irregularly
None of the answers above.
