Portuguese activity, focused on students in the eighth grade of elementary school, about subject. Let's analyze it in the text Why do soap and detergent remove grease? To do so, answer the proposed questions!
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SCHOOL: DATE:
PROF: CLASS:
NAME:
Read:
Soaps and detergents can remove greasy stains because they act as emulsifiers, that is, they allow fats and water to mix and be removed during washing. The action of these products is only possible because they are formed by molecules that have a double characteristic.
Part of the molecules, which make up soap and detergent, are attracted to fats, while the other part is attracted to water. Thus, they interact with fats and water at the same time, making both substances mix and grease stains can be removed by the degreasing action of these products.
Joab Trajano da Silva. Magazine “Science Today for Children”. Edition 216.
Available in:. (Fragment).
Question 1 – Highlight the following subject:
“Soaps and detergents can remove greasy stains […]”
Question 2 – The subject underlined above is compound because it has more than one nucleus. Identify them:
Question 3 – In the sentence “[…] because they act as emulsifiers […]”, the subject is:
( ) hidden.
( ) nonexistent.
( ) undetermined.
Question 4 – Watch:
“[…] they allow fats and water to mix and be removed during washing.”
In this passage, there is a simple subject verb. Which?
Question 5 – In “Thus, they interact at the same time […]”, the simple subject refers to:
( ) molecules.
( ) fats.
( ) two substances.
By Denyse Lage Fonseca
Graduated in Letters and specialist in distance education.
