CBSE Class 10 - Science Pre-Board Sample Question Paper (2018-19) (Set-2)(#cbsepapers)(#eduvictors)(#class10Science)

CBSE Class 10 - Science
 Pre-Board Sample Question Paper (2018-19) (Set-2)

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Science subject to assess your knowledge about the subject.

CBSE Class 10 - Science Pre-Board Sample Question Paper (2018-19) (Set-3)(#cbsepapers)(#eduvictors)

CBSE Class 10 - Science
 Pre-Board Sample Question Paper (2018-19) (Set-3)

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Science subject to assess your knowledge about the subject.

CBSE Class 10 - Science Pre-Board Sample Question Paper (2018-19)(#eduvictors)(#cbsenotes)

CBSE Class 10 - Science
 Pre-Board Sample Question Paper (2018-19)

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Science subject to assess your knowledge about the subject.

CBSE Class 6 - 10 - Scientific Discoveries and Inventions Quiz (#sciencequiz)(#eduvictors)

Scientific Discoveries and Inventions Quiz

Q1: Who discovered the first antibiotic?

(a) W Fleming
(b) C Waksman
(c) Louis Pasteur
(d) A Fleming


Q2: Who invented the Safety razor?

(a) Gillette
(b) Nikola Tesla
(c) Steve Job
(d) Lar Strauss


Q3: X–rays were discovered by

(a) Edison
(b) Roentgen
(c) Marie Curie
(d) Van Lue

Class 10 - Chemistry - Carbon and Its Compounds (NCERT In Text Activities Solved) (#cbsenotes)(#eduvictors)

Class 10 - Chemistry

Carbon and Its Compounds 

(NCERT In Text Activities Solved)

Activity 4.1
● Make a list of ten things you have used or consumed since the morning.

● Compile this list with the lists made by your classmates and then sort the items into the adjacent Table.

● If there are items which are made up of more than one material, put them into both the relevant columns.

Answer:

(C) -> Indicates carbon-based material.

Class 10 - Science - Chapter 15: Our Environment (Study Points) (#cbsenotes)(#eduvictors)

Our Environment 

(Study Points)

Environment: 

It is the sum total of all external conditions and influences that affect the life and development of an organism, i.e., the environment includes all the physical or abiotic and biological or biotic factors.

Biodegradable Substances: 

These are those substances which are broken down into simpler, harmless substances in nature with due course of time by the biological processes such as action of microorganisms like certain bacteria.

Eg. Domestic waste products, urine and faecal matter, sewage, agricultural residue, paper, wood,

cloth and cattle dung.

Non-biodegradable Substances:

Non-biodegradable Substances are those substances which cannot be broken down into simpler, harmless substances in nature. These substances may be in solid, liquid or gaseous form and may be inert and accumulate in the environment or may be concentrated in the food chain and harm the organisms.

Eg. DDT, plastics, polythene bags, insecticides, pesticides, mercury, lead, arsenic, aluminium, radioactive wastes, etc.

CBSE Class 10 - All Subjects Sample Question Papers (2018-19) (#cbsepapers)(#eduvictors)

CBSE Class 10 -
 Sample Question Papers (2018-19)

All Subjects

The Central Board of Secondary Education (CBSE) conducts Class 10 Board examinations every year in March. All examination questions depend on this prospectus so students should know about any updates that are made by NCERT. For the examinations, students can likewise download the CBSE board test papers for class 10 free PDF download and work on taking care of issues with us.

By solving the CBSE test papers for class 10, candidates will figure out how to distinguish question paper examples and patterns, answer necessities, kinds of trap questions and the sky is the limit from there. Students are urged to endeavor test question papers inside the predefined time limit. The papers empower them  to find the correct technique and answers for ordinarily made questions. They are urged to solve the problems within the recommended time with the goal that they may assess their regions of solidarity and focus on those they are feeble in.

To endeavor board exam understudies require a great deal of training as ridicule tests and test papers that will plan and empower them to compose the Class 10 CBSE Board Examination with certainty. Since it is the main board exam a kid shows up for there is frequently a great deal of fear included. Explaining these example papers supports certainty and mitigates the dread of board examinations that a great deal of students have.

Here are sample question papers on various subjects for class 10 (session: 2018-19) along with answers and marking schemes:

Class 10 - Chemistry - Carbon and Its Compounds - Study Notes - Download PDF (#cbsenotes)(#eduvictors)

CBSE Class 10 - Chemistry 
 Carbon and Its Compounds - Study Notes (PDF)

Chemistry is that branch of science which deals with the composition, structure and properties of matter. Organic chemistry is predominantly concerned with the reactions that organic molecules undergo. Hydrocarbons are compounds that contain only carbon and hydrogen atoms. Carboxylic acids contain both a carbonyl group (C=O) and a hydroxyl group (–OH) on a terminal carbon. Carboxylic acids, like aldehydes, are terminal functional groups.

Here follows the class 10 Chemistry - Carbon and Its Compounds notes available as pdf file.

CBSE Class 10 - Science - Chapter 14 - Sources Of Energy - Study Points (#eduvictors)(#cbsenotes)

Class 10 - Science - Chapter 14 

Sources Of Energy 

Study Points

Energy:  

Whenever a body is capable of doing work, the body is said to possess energy. Thus energy is defined as the ability of a body to do work and the amount of energy possessed by a body is equal to the amount of work it can do when its energy is released.

Energy comes in different forms and one form can be converted to another. For example, if we drop a plate from a height, the potential energy of the plate is converted mostly to sound energy when it hits the ground.

A good source of energy should be:

i) Safe and convenient to use, e.g., nuclear energy can be used only by highly trained engineers with the help of nuclear power plants. It cannot be used for our household purposed.

ii) Easy to transport, e.g., coal, petrol, diesel, LPG etc. Have to be transported from the places of their production to the consumers.

iii) Easy to store, e.g., huge storage tanks are required to store petrol, diesel, LPG etc.

CBSE Class 10 - Science - Mid-Term Sample Question Paper - (2018-19)(#cbsepapers)(#eduvictors)

CBSE Class 10 - Science
 - Mid-Term Sample
Question Paper - (2018-19)

CBSE Class 10 - Biology - Reproduction in Plants - Very Short Questions Answers (#cbsenotes)(#eduvictors)

Reproduction in Plants 

Class 10 Biology

Stamen, Anthers: Credits: Sandeep Handa

Very Short Questions Answers

Q1: Write two ways in which pollination may occur in plants.

Answer: The two ways in which pollination may occur in plants are:
⑴ Self-pollination.
⑵ Cross-pollination.


Q2: Name the three agents of pollination.

Answer: The three agents of pollination are:
⑴ Insect
⑵ Wind
⑶ Water


Q3: Name any three agencies for dispersal of seeds.

Answer:
⑴ Wind
⑵ Water
⑶ Man and animals, birds, bats, squirrels.

Class 6/7/8/9/10 Entrance Tests/NTSE/CTET/NDA - General Science Quiz (2018) (#eduvictors)

General Science Quiz 

Q1: Which of the following is not example bio-mass energy source?

(a) Wood
(b) Gobar gas
(c) Atomic energy
(d) Coal


Q2: The scientific study of earthquakes is known as 

(a) Seismology
(b) Cosmology
(c) Ecology
(d) Pathology


Q3: Which of the following is a plant hormone?

(a) Insulin
(b) Thyroxin
(c) Estrogen
(d) Cytokinin

CBSE Class 10 - Biology - Our Environment - Revision Assignment (#cbsenotes)(#eduvictors)

Biology - Our Environment 

Revision Assignment

ONE MARK QUESTIONS

1. Using Kulhads as disposable cups to serve tea in trains, proved to be a bad idea. Why?

2. Why is plastic not degraded by bacteria?


TWO MARK QUESTIONS

3. DDT has entered the food chain. Which food habit is safer- vegetarian or non-vegetarian?

4. Classify the flowing as decomposers and producers Green plants, bacteria, fungi, algae, blue-green algae.

5. Distinguish between producers and consumers.

6. Name two environment-friendly practices.

7. Write any two ways of energy flow through an ecosystem.

Class 11/10/9/8 - Chemistry - Uses of Gases (Worksheet) (#eduvictors)(#cbsenotes)

Uses of Gases 

(Worksheet)

Fill the blanks:

1. The gas that can be used to fill party balloons is _______.

2. The gas that is used to make flash light is _______ .

3. The gas widely used in advertisement signs is _______.

4. The gas present in tungsten bulb is _______.

5. The gas present in the universe is _______.

CBSE CLASS 10 - Biology - Control and Co-ordination (Important Questions) (#cbsenotes)(#eduvictors)

Control and Co-ordination

(Important Questions to Revise)

ONE MARK QUESTIONS

1. Which endocrine gland is unpaired?

2. Which part of the brain controlled posture and balance of the body?

3. Where in a neuron, conversions of electrical signal to a chemical signal occur?

4. Which gland secretes digestive enzyme as well as hormones?

5. We suddenly withdraw our hand when a pin pricks. Name the type of response involved in this action.

6. Name the hormone which helps in regulating sugar level in our blood? Name the gland which secretes this hormone?

7. State the main function of abscises acid

CBSE CLASS-X - SCIENCE ASSIGNMENT-MANAGEMENT OF NATURAL RESOURCES (#cbsenotes)(#eduvictors)

MANAGEMENT OF NATURAL RESOURCES

ASSIGNMENT

1) When was Ganga action plan project (gap) started and why was it started?

2) Name the type of bacteria whose presence in water causes intestinal disorders?

3) How does Ganga water pollute? List at least four human activities.

4) How do industries pollute the Ganga water?

5) What leads to the killing of fish in the large section of Ganga water?

6) What is the PH of water?

CBSE CLASS 10 - Electricity - Assignment Sheet (#eduvictors)(#cbsenotes)

Electricity - Assignment Sheet

Very Short Q & A (1 marks each)

Q1: Define resistivity of material.

Q2: What is the power of torch bulb rated at 2.5V and 500mA?

Q3: Why series arrangement not used for connecting domestic electrical appliances in a circuit?

Q4: Which has higher resistance – a 50W bulb or a 2.5W bulb and how many times?

Q5: What is the direction of flow of conventional current?

Q6: Calculate the amount of charge flowing in a wire if it draws a current of 2A in 10 minutes

Q7: What happens to resistance of a conductor if area of cross-section is doubled?

Q8: Which device helps to maintain a potential difference across a conductor?

Q9: Find the number of electron in 1C of charge.

Q10: Name the physical quantity whose unit is V/A.

Q11: Name the device that helps to maintain a potential a potential difference across a conductor.

CLASS 10 - CHEMISTRY - CHEMICAL REACTIONS AND EQUATIONS - Chapter Summary Notes (#eduvictors)(#cbsenotes)

CHEMICAL REACTIONS AND EQUATIONS

Chapter Summary Notes

1. Chemical reaction — 

Chemical changes or chemical reactions are the changes in which one or more new substances are formed.

2. Chemical Equations – 

Representation of a chemical reaction in terms of symbols and formulae of the reactants and products is known as a chemical equation.

3. Balanced Chemical equations – 

The chemical equation in which the no. of atoms of different elements is same on both sides of the arrow is called balanced chemical equation.

4. The chemical reactions can be classified into different types such as—

a. Combination reaction.
b. Decomposition reaction.
c. Displacement reaction.
 d. Double Displacement reaction.
i. Precipitation reaction
ii. Neutralization reaction
e. Redox reaction

Class 7/8/10 - Forests Our Life Line or Natural Resources - Importance of Forest Resources (#cbsenotes)(#eduvictors)

Natural Resources - Importance of Forest Resources

The importance of forest resources can be described  as follows:

1. Ecological Balance
2. Renewable Natural Resources
3. Eco-system
4. Economic Development
5. Environment Quality
6. Safeguard against Pollution
7. Soil Conservation
8. Wind and Soil Erosion
9. Check the Extension Balance
10. Maintains Ecological Balance
11. Attracts Rainfall
12. Control Floods
13. Connects to our Cultural and Civilization
14. Supply of Raw Material

1. Ecological Balance: 

Forests and wildlife are essential to maintain ecological balance of an area.

CBSE CLASS 10 - Science - Chapter 14 - Sources Of Energy (Revision Assignment) (#cbseNotes)(#eduvictors)

SOURCE OF ENERGY

Revision Assignment

Energy Sources and Potential
(Image Credits: Wikipedia, Delphi234

ONE MARKS QUESTION

1. Thermal power plants are set up near coal or oil fields. Give reason

2. Name the component of sunlight, exposure to which may cause skin cancer.

3. Flowing water possess which type of energy.

4. Name one place in India where wind energy power station is installed.

5. What is a solar panel?

6. What type of energy transformation takes place during winding of spring of a clock?

7. Name the process that produces a large amount of energy in the sun.

8. Why is biogas called a clean fuel?

9. Name the materials used for making solar cells.