Activity of text interpretation, aimed at students in the seventh year of elementary school, with various questions. Do you know Why doesn't gold rust? Do you know the difference between rusting and oxidizing? Let's learn? So, carefully read the text that explains all this properly! Afterwards, be sure to answer the various interpretative questions proposed!
This reading comprehension activity is available for downloadable editable Word, ready to print to PDF and also the answered activity.
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SCHOOL: DATE:
PROF: CLASS:
NAME:
Carefully read the text. Then answer the questions proposed about it:
Before answering about gold, let's think a little about what rusting is. As the name says, rust is something that happens to iron. When iron is exposed to air in the presence of water, it undergoes a transformation, a chemical reaction that produces something that wasn't there before: the rust or iron oxide, that orange material that forms on top of the iron.
If you leave a wet steel wool in the sink, it will quickly turn brown. Rust is a compound that contains oxygen and iron. When we talk about other metals reacting with oxygen and forming oxides, we don't use the term rust, but oxidize.
You may have noticed copper coins that, after a while, turn dark. This is because copper oxidizes. If you put some vinegar or lemon juice on the coin, the acid will dissolve the copper oxide and the coin will look shiny as new. We can put the metals in a row, in the order of how easily they have to oxidize.
Some metals oxidize easily, such as zinc and iron. Others such as copper and silver take much longer to oxidize. The more difficult a metal is to react with, for example, oxygen in the air, the more noble that metal is. It's a thing of the nobility, of not wanting to mix with other commoners… Gold is one of the most popular metals. nobles, at the very end of the line, so much so that, under normal conditions, it doesn't react with oxygen and so it doesn't oxidizes. Therefore, we find gold in nature as a metal, without being linked to other elements.
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Question 1 - Reread this passage from the text:
“[…] rust or iron oxide, that orange material that forms on top of iron.”
In this passage, the author:
( ) defines rust or iron oxide.
( ) characterizes rust or iron oxide.
( ) exposes an opinion about rust or iron oxide.
Question 2 - In the part “[…] he undergoes a transformation, a chemical reaction that produces something that was not there before […]”, the term “he” refers to:
( ) to gold.
( ) to iron.
( ) on the air.
Question 3 – In the excerpt “If you leave a wet steel wool in the sink […]”, the author of the text:
( ) gives a suggestion.
( ) makes an assumption.
( ) comes to a conclusion.
Question 4 – In the fragment "You must have already noticed copper coins that, after a while, turn dark.", the verb "remain" expresses:
( ) the action of copper coins after a while.
( ) the state of copper coins after a while.
( ) the characteristic of copper coins after a while.
Question 5 - According to the text, gold does not oxidize because:
( ) “it is one of the most noble metals”.
( ) “under normal conditions, it does not react with oxygen”.
( ) “we find gold in nature as a metal”.
Question 6 – Point out the sentence in which the term "how" expresses a comparison:
( ) "As the name says, rust is something that happens to iron."
( ) “[…] and the coin will be shiny as new.”
( ) "Others like copper and silver take much longer to oxidize."
Question 7 – In the segment “Some metals oxidize easily […]”, the word “easily” was used to indicate:
( ) the way some metals oxidize.
( ) the way some metals oxidize.
( ) the time that some metals oxidize.
Question 8 – It can be said that the text read has purposes:
( ) didactic
( ) scientific
( ) journalistic
By Denyse Lage Fonseca
Graduated in Languages and specialist in distance education.
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