Comprehension activities and vocabulary

Lea el párrafo que aparece abajo y complete las palabras que faltan.

Read the paragraph below and fill in the missing words. Use these words: meanings, structure, tend to, ridges, skeletons, forces.

A can be defined as the frame, arrangement or order which organises the parts of a whole. This word can have several different (the rhythm of a song, the way the story in a novel is told, how a company is organised, etc.). We refer to the resistant parts that hold a body together and help it keep its shape.


All bodies have some sort of structure. The reason why they need structures is due to  . The forces found in nature deform bodies. All objects and living beings have elements that resist these forces, enabling them to keep their shape and carry out their functions. Structures include everything from mollusk shells to the Eiffel Tower in Paris, and from the of vertebrates to the on a plastic cup. 

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Lea y complete

Complete the text using the words in the drop down menu.

A tree doesn’t normally move if we push it because its roots are by the earth. The force of the earth our force. When we push the tree, it
with an identical force against us.

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Selecciona los objetos que están sometidos a los efectos mencionados

Pregunta

Choose examples of everyday objects that are subjected to the stresses of traction

Respuestas

clothesline

telephone wire

 remote control buttons

sides of a cooking pan

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Pregunta

Choose examples of everyday objects that are subjected to the stresses of compression

Respuestas

straps of a dress

cord for a blind

table legs

sides of a shelf

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Lea y complete

Complete the sentences using the words in the drop down menu.

  • The shelf is curved because it couldn’t on the weight of those heavy books.
  • The resistance of a structure is by the material it’s made from.

  • That construction site doesn’t the safety regulations. The workers have no protective clothing.

  • The pressure of the water in the tank has the sides. They weren’t made of strong plastic.

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Lea y complete

Complete the text using the words in the drop down menu.

Concrete is made by mixing cement, sand, gravel and . If the concrete contains steel bars it’s called reinforced concrete. The steel in the reinforced concrete bears the stress, so it goes in the underside of the joist. It also resists . The concrete bears the  stress. The mixture of concrete and steel has greater than joists made only from metal, but the disadvantage is that they’re very .I-shaped metal joists are used for lighter structures.

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