Secondary 2, Science, Worksheet 5, Elements, compound, mixtures – tbc, no ans

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Question: A certain material has the following properties: It is non-corrosive, transparent, flexible and does not conduct electricity. Which class of material does it belong to?

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Question: Which physical property of a material is not important when making a kitchen saucepan from this material?

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Question: A group of objects with similar properties is called a set. Which of these is a set?

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Question: Which of these is not a physical property of a material?

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Question: Which of these materials is incorrectly classified?

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Question: Which of these statements is true about substances which are liquids at room temperature?

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Question: Quartz (as per picture) will scratch chalk but is scratched itself by diamond. Which is the correct order of hardness (softest first)?

( Quartz Crystal)

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Question: An ‘up and over’ manual garage door is made of aluminium metal. Some properties of aluminium are:

1. Does not corrode
2. Low density
3. Good conductor of heat

Which of the properties make it suitable for this use?

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Fibres can be spun into threads.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: All metals are solids at room temperature.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Glass conducts electricity but not heat.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Fibres can dyed into many colours.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Ceramics are good conductors of heat.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Glass and metals can be shaped at high temperatures.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Plastics have a low density compared to metals.

Indicate if these statements about classes of materials (metals, glass, plastics, fibres and ceramics) are true or false by selecting a ‘T’ or ‘F’ below.

Question: Glass is malleable and ductile.

Metals are very useful materials. Three common metals and their uses are given below.Complete the graphic organiser.

You have a toy which you think is made out of metal. Describe three tests you would conduct to check your hypothesis .

Plastic bags have replaced paper bags for the packaging of most materials. Give three advantages and two disadvantages of using plastic over paper: