Activity of text interpretation, aimed at fifth graders, about the electric fish shock. How does this shock work? Let's understand? So, read the text carefully! Then answer the various interpretative questions proposed!
You can download this text comprehension activity in an editable Word template ready to print to PDF and also the answer activity.
Download this text interpretation exercise from:
SCHOOL: DATE:
PROF: CLASS:
NAME:
Read:
Hydroelectric, thermoelectric, nuclear and wind power plants. All of them, you already know, produce electrical energy. Now how can a fish achieve this? Don't even think about turning on a lamp or charging your cell phone using the electric fish. The electricity emitted by these animals is a form of defense, attack and guidance in the environment. Let's understand this one better – oh! – shock!
The explanation is as follows: some species of fish have electrolytes, which are modified muscle cells. Like this? Well, first you need to know that any muscle movement is associated with the generation of electrical impulses. It turns out that, in the case of these fish, part of the electricity is not used up in the movement of their body, being stored in the electrocytes. Hence the contact with these animals produce – zoom!! – an electrical discharge.
This electrical discharge varies in intensity according to the species. The owner of one of the most powerful discharges is the torpedo ray, capable of producing 2,500 watts of power – for you to have an idea, common incandescent lamps have an average power of 60 watts. In the case of the torpedo ray, all this power serves to capture its prey or protect itself from predators.
But does this shock pose no risk to the fish itself? Not even! The field generated by the animal's electricity discharge is located around its body and only low power currents are in contact with the fish's body. But this does not mean that it is protected against the electrical discharge produced by another electric fish...
There are no records of fatal accidents involving human beings, despite the enormous power that some species are capable of producing. Just in case, it's advisable to keep your distance from these fish, because getting a shock, no matter how weak, is no fun.
Matthew Soares.
“Ciência Hoje das Crianças” magazine.
Edition 226. Available in:
.
Question 1 - In “Now, how can a fish do that?”, the term underlined refers to:
Question 2 - In the passage “The electricity emitted by these animals is a form of defense, attack and orientation in the environment.”, the underlined word indicates:
( ) facts that add up.
( ) alternating facts.
( ) contrasting facts.
Question 3 - The author addresses the reader directly in the excerpt:
( ) “Let's understand this one better – oh! – shock!”
( ) "This electrical discharge varies in intensity according to the species."
( ) “There are no records of fatal accidents involving human beings […]”
Question 4 – In “Hence the contact with these animals produce – zoom!! – an electrical discharge.”, the author used “zump!!” to represent the sound of an electrical discharge. Hence, “zump!!” It's:
( ) an adjective.
( ) an interjection.
( ) an onomatopoeia.
Question 5 - In the segment “[…] all this power serves to capture its prey or protect itself from predators.”, the word “to” expresses:
( ) direction.
( ) destiny.
( ) goal.
Question 6 – According to the author of the text, the shock produced by the electric fish can reach:
( ) the fish itself.
( ) another fish.
( ) the fish itself and another fish.
Question 7 – Read back:
"Just in case, it's advisable to keep your distance from these fish, not least because getting a shock, no matter how weak, is no fun."
The author ends the text with:
( ) a doubt.
( ) an orientation.
( ) a comparison.
Per Denyse Lage Fonseca
Graduated in Languages and specialist in distance education.
report this ad
