7th Standard Syllabus & Materials
7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - ஒன்றல்ல இரண்டல்ல Important Questions And Answers Study Material - QB365 Set A
NEW7th Standard
TN 7th Tamil பருவம் -1 இயல் 1 - அமுதத்தமிழ் - எங்கள் தமிழ் Important Questions And Answers Study Material - QB365 Set A
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TN 7th English T1 - Poem - Your Space Important Questions And Answers Study Material - QB365 Set A
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TN 7th English T1 - Prose - A Prayer to the Teacher Important Questions And Answers Study Material - QB365 Set A
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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Book back Questions in class 7 Science Subject. It
will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 7th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Calculate the atomicity of H2SO4.
2.
Give an example for the elements derived from their Latin names
3.
Define molecule.
4.
Write the chemical formula for the following elements
a. Hydrogen
b. Nitrogen
c. Ozone
d. Sulphur
5.
Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.
a. Formulate a hypothesis based on the information provided.
b. Briefly state how you would test the hypothesis.
1.
(i) H2SO4 consists of 2H atoms, 1 S atom and 4 O atoms.
(ii) Hence, Atomicity = 2 + 1 + 4 = 7
2.
| Name | Latin Name | Symbol |
| Copper | Cuprum | Cu |
| Gold | Aurum | Au |
| Potassium | Kalium | K |
3.
A molecule is made up of two or more atoms chemically combined.
4.
| Elements | Chemical Formula |
| Hydrogen | H2 |
| Nitrogen | N2 |
| Ozone | O3 |
| Sulphur | S8 |
5.
a) The matter begun to 'expand' when heated - 'Expansion'.
b) Ring and metal ball experiment is suitable for this hypothesis.
When the ball is heated, the ball has expanded and will not be able to pass through the ring until it has cooled.
7th Standard Syllabus & Materials
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Tamilnadu Stateboard 7th Standard Subjects
Tamilnadu Stateboard Standards
