Activities

Vocabulary Activity

Fill the gap with the opposite

  1. Permeable is the opposite of
  2. is the opposite of contraction
  3. Softness is the opposite of   
  4. Brittleness is the opposite of
  5. is the opposite of conductor
  6. is the opposite of transparent
  7. Elasticity is the opposite of
  8. If a material is less , it's more dense
  9. Soundproof is the opposite of

 

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Order from greater to lesser hardness the following materials

plasticine, glass, plaster, ceramics, diamond and talc

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Complete the sentences with the proper word

Lea y complete con la palabra apropiada dentro del menú desplegable

materials can be stretched. They return to their shape and size after stretching. materials can also be stretched, but they remain permanently  after stretching.

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To find out if a material is a thermal conductor you can touch it. If it becomes , it’s a thermal conductor.  is the material that is most sensitive to thermal . A characteristic of materials used for welding is .

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A book can’t be transparent or because you have to see the words on the page. A light bulb can’t be because the light has to shine through it for it to work.

To soundproof a room, we use material or cork

Wood and some and ceramic materials are . So any object made of wood, roof tiles, bricks, earthenware etc. is permeable.
, plastic, some (polyester), stone (glass, marble, granite, slate) and ceramics (china, stoneware, porcelain) are . Any object made with these materials is

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Analysing the properties of materials

We have selected two materials WOOD and METAL and two objects: a wooden mortar made of WOOD and a key made of some METAL. We analyse the properties that we have studied in this unit following the instructions below

Hand turned Wooden Mortar and Pestle
William Warby. Hand turned Wooden Mortar and Pestle (Dominio público)
Standard-lock-key
Evan-Amos. Standard-lock-key (Dominio público)



  • For analysing Electrical Properties: Connect the two objects into an electrical circuit
  • For analysing Thermal Properties: Apply heat to the objects and touch them
  • For analysing Optical Properties: Illuminate the objects and observe if the light goes through them and evaluate them by visual inspection
  • For analysing Mechanical Properties: Apply different forces to both objects and evaluate the reaction
  • For analysing Density: Determine the mass and volume of each object and calculate its density and also examine if objects float in water 
  • For analysing Porosity and Permeability: Use water to test if the object absorbs it, or allows it to pass through