Thursday, October 22, 2020
Thursday, October 15, 2020
Std.V Oral Exam Time Table
Std.V
Oral Exam Topics:
Subject: Mathematics
Roman Numerals
Number Work
On Wednesday, October 21st,2020
Div: 5A-5D Time: 8.15 - 8.55
Div: 5C-5D Time: 8.55 - 9.30
No.of Questions: 10
Total Marks: 10
Type of Exam: MCQ
Please Note:
Your oral test will be taken during your regular online lecture through google form.
Std.V
Oral Exam Topics:
Subject: Mathematics
Roman Numerals
Number Work
On Monday, October 19th,2020
Div: 5B-5D Time: 8.55 - 9.30
No.of Questions: 10
Total Marks: 10
Type of Exam: MCQ
Please Note:
Your oral test will be taken during your regular online lecture through google form.
Std.VII Oral Exam Time Table
Std.VII
Oral Exam Topics:
Subject: Science
Motion,Force,Work
(Numerical Problems)
On Monday, October 19th,2020
Div: 7C-7D
Time: 10.35 - 11.05
No.of Questions: 05
Total Marks: 10
Type of Exam: MCQ
Please Note:
Your oral test will be taken during your regular online lecture through google form.
Std.VII
Oral Exam Topics:
Subject: Science
Motion,Force,Work
(Numerical Problems)
On Tuesday, October 20th,2020
Div: 7B-7D
Time: 11.05 - 11.40
No.of Questions: 05
Total Marks: 10
Type of Exam: MCQ
Please Note:
Your oral test will be taken during your regular online lecture through google form.
Std.VII
Oral Exam Topics:
Subject: Science
Motion,Force,Work
(Numerical Problems)
On Wednesday, October 21st,2020
Div: 7A-7D
Time: 10.35 - 11.05
No.of Questions: 05
Total Marks: 10
Type of Exam: MCQ
Please Note:
Your oral test will be taken during your regular online lecture through google form.
Monday, October 12, 2020
IMPORTANT NOTICE- SilverZone Olympiad Examination
Dear Parents,
In view of the genuine interest of the candidates/ aspirants SILVERZONE OLYMPIAD has decided to reopen the online registration, Form filling, Form submission link for SilverZone Olympiad Examination 2020-21 from 12thOctober to 15thOctober 2020,
| URL:http://www.silverzone.org/ Parents can always contact the following WhatsApp Number for quicker communication. |
Interested Candidate here by informed to please take note of this.
NOTE :
1. No further Extension will be given.
2. Candidates are advised to read the Information Brochure carefully and
follow the tips for Online Form Filling.
Std.V 1st Semester details (math)
01st Semester Portion
Subject:Mathematics
Ch.1.Roman Numerals
Ch.2.Number Work
Ch.3.Addition and Subtraction
Ch.4.Multiplication and Division
Ch.6.Angles
Ch.7.Circles
Mode of Semester Exam:
Online - 20 marks (MCQ)
Offline - 20 marks (written)
Oral Exam -10 marks
Total- 50 marks
Assignments and Activities:
Circle worksheet -10 marks
An interesting Dice Game -10 marks
Oral Exam- 10 marks
Circleworksheet: 10 marks
1. The following figure shows a circle with centre O and some line segments drawn in it. Classify the line segments as radius, chord and diameter:
(i) OA = ………………..
ii) OB = ………………..
iii) OC = ………………..
(iv) EF = ………………..
(v) MN = ………………..
(vi) PQ = ………………..
2. With the help of a compass, draw a circle of radius:
(i) 4.5 cm.
(ii) 5.2 cm
3. Draw a circle of radius 6 cm.
4. Draw a circle with centre C and radius 4.7 cm. Mark point P,Q,R such that P lies in the interior of the circle, Q lies on the circle and R lies in the exterior of the circle.
5. Draw a circle whose diameter is 10 cm. Find its radius.
2.An interesting Dice Game
Activity:02 (10 Marks)
An interesting dice game.
(TextBook Page No.7)
Make a table with the name of each player ie you and family members, as shown in the textbook.
Play the game with the rules given as Game1 or Game2 on page 7.
Write down who finally won the math game.
The one with the largest number is the winner.
( Play this math game with your parents or siblings.)
3.Oral Exam (10 marks)
Std.VII Science Portion and other details (1st Semester Examination)
Subject:Science
Portion as follows:
- Chapter 2 - Plants : Structure and Function
- Chapter 3 - Properties of Natural Resources
- Chapter 4 - Nutrition in Living Organisms
- Chapter 5 - Food Safety
- Chapter 6 - Measurement of Physical Quantities
- Chapter 7 - Motion, Force and Work
- Chapter 8 - Static Electricity
- Chapter 9 - Heat
Mode of Semester Exam:
Online - 25 marks (MCQ)
Offline - 25 marks (written)
Practical -10 marks
Total- 60 marks
Assignments and Activities:
Disaster Management -10 marks
Numerical Problem -10 marks
(Motion,force and work)
Disaster Management: 10 marks
A) With the help of internet,collect information about the places in India where a calamity(tsunami) has occurred.
B)Collect the information about how cyclonic storms are named.
Numerical Problems:(02 marks each)
1. A person travels a distance of 72 km in 4 hours.Calculate the average speed in m/s.
2.The velocity of a moving body increases 10 m/s to 20 m/s in 5 seconds.
Find its acceleration.
3. A train moving with uniform speed covers a distance of 120 meters in 2 seconds.
Calculate:
A) The speed of the train
B) The time it will take to cover 240 meters distance
4.Find the distance travelled by a body in 5 minutes if it travels with a uniform speed of 20 m/s.
5. The speed of a car is 72 km/hr.
Express it in m/s.
Std.VII Ch.9. Heat Q&A
Question 1:
Fill in the blanks with the proper word from the brackets.
(radiation, white, conduction, blue, convection, bad conductor, good conductor, black, reflection)
(a) Maximum heat is absorbed by a ................ coloured object.
(b) ...................... of heat does not require a medium.
(c) Conduction of heat takes place through a .......................... substance.
(d) The shining surface in a thermos flask decreases the outgoing heat by ......................... .
(e) Cooking utensils are made from metals due to their property of ................. .
(f) The earth receives heat from the sun by .................... .
ANSWER:
(a) Maximum heat is absorbed by a black coloured object.
(b) Radiation of heat does not require a medium.
(c) Conduction of heat takes place through a good conductor substance.
(d) The shining surface in a thermos flask decreases the outgoing heat by reflection.
(e) Cooking utensils are made from metals due to their property of conduction.
(f) The earth receives heat from the sun by radiation.
Page No 63:
Question 2:
What will absorb heat?
Steel spoon, wooden board, glass vessel, iron griddle (tava) , glass, wooden spoon , plastic plate, soil, water, wax
ANSWER:
Steel spoon, iron griddle, water, soil and wax will absorb heat.
Page No 63:
Question 3:
Write answers to the following question.
(a) How does a fever get lowered by putting a cold compress on the forehead of a patient ?
(b) Why are the houses in Rajasthan painted white ?
(c) What are the modes of heat transfer ?
(d) Explain which mode of heat transfer causes sea breezes and land breezes.
(e) Why is the outer coat of the penguins of Antarctica black ?
(f) Why are heaters fitted near the floor and air conditioners, near the ceiling of a room ?
ANSWER:
(a) Cold compress is made up of material that absorbs heats. Thus, by putting it on the forehead of a patient suffering from high fever, the heat flow takes place from the head of the patient to the cold compress. Therefore, the cold compress absorbs heat from the patient's body and lowers the body temperature.
(b) White colours are reflectors of heat. Thus, Rajasthan, a very hot city, has houses with their walls painted white so that most of heat from the Sun is reflected back to the atmosphere. This keeps the houses cool from inside.
(c) There are three modes of heat transfer:
- Conduction: Conduction is a process in which heat is transferred from the hotter end of an object to its cooler end.
- Convection: The process of transference of heat through a fluid (liquid or gas) is called convection.
- Radiation: Radiation is a method of heat transfer which does not require a medium.
Sea breeze: It is the wind that blows from the sea or the oceans towards the land. It develops during day time when the land heats up quickly. Also, the water heats up slowly as compared to land due to which water in the sea and oceans is relatively cooler than land. Therefore, the air near the land becomes hot and rises up and the cold air from sea takes the place of hot air. The hot air than moves toward the sea to complete the cycle.
Land breeze: It is the wind that blows from the land towards the sea or the oceans. It develops during night time. Land cools down faster than water. Therefore, during night time, land is cooler than sea. Hence, cool air from the land blows towards the sea. This is called the land breeze.
(e) Black colour is good absorbers or trappers of heat. So, in cold regions like Antarctica, the black outer coating of Penguins helps them to absorb as much heat from the surrounding and keep their bodies warm.
(f) Room heaters are fitted near the floor because this allows the hot air near the heater to rise up and warm the entire room.
The air conditioners are fitted near the ceiling, so that the cold air from the AC takes the place of hot air rising up from the bottom. In this way, the entire room gets cooled.
Page No 63:
Question 4:
Give scientific reasons.
(a) An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
(b) The telephone wires which sag in summer become straight in winter.
(c) Dew drops form on the grass in winter.
(d) In winter, why does an iron pillar feel colder than a wooden pole ?
ANSWER:
(a) Normal glass is an insulator which means it is a poor conductor of heat. When boiling water is poured into a glass tumbler, the surface of the glass which is in contact with the hot water heats up and expands as per its coefficient of thermal expansion. But the outer layer of the glass remains cold and does not expand (since glass is a poor conductor and does not transfer heat quickly). This difference in thermal expansion causes thermal stress which eventually leads to cracking.
Borosil glasses have very low coefficients of thermal expansion which makes them resistant to thermal shock, more than any other common glass. So, Borosil glass does not crack when hot liquid is poured in it, but normal glass cracks.
(b) In summers, the surrounding temperature is very high. Due to this high temperature, the metallic telephone wires are heated up and thus expands in length. Due to this, they sag down.
In winters, the surrounding temperature is very low. Due to this low temperature, the metallic telephone wires are cooled down and thus contracts in length. Due to this, they become straight.
(c) In winters, the temperature of the air near the grass decreases to dew point. Thus, the air becomes saturated with water vapour. As a result, water vapour condenses into tiny water droplets which appears on the surface of the grass.
(d) An iron pillar feels colder than a wooden pole in winter because the thermal conductivity of iron is very high as compared to wood. So, when you touch wooden pole, heat from your finger warms the wooden pole just at that place but isn't conducted away. But for iron pillar, the heat conducts away rapidly from your finger to the whole pillar and your finger then keeps trying to supply more heat until it is as cold as the iron. So, the iron pillar feels colder because it doesn't warm under your finger like the wooden pole.
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Question 1: Choose the appropriate option and rewrite the following statements. A. The intermolecular force is _______ in the paricles of so...
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Question 1: Fill in the blanks with the proper word from the brackets. (radiation, white, conduction, blue, convection, bad conductor, good ...
