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Vikash Institute, Motihari

Vikash Institute is one of the oldest and best CBSE coaching institute in Raghunathpur, Motihari for Std 5th to 10th for Math, Science, SST and English. The institute was founded in 2007 by Mr. Vikash Kumar.

Vikash Institute provides a stable, caring and supportive family-like environment, where students receive mature guidance through daily interaction with teacher. The Institute is committed to providing quality education to students.

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Class 8 - Science Experiments
Chapter – 1 Crop Production and Management
1. To separate healthy seeds from the damaged ones.
2. To observe the effect on the growth of plants on adding manure in the soil.
3. To collect information on irrigation practices prevailed in different parts of India.

Chapter – 2 Microorganisms : Friend and Foe
1. To observe the effect of adding yeast in flour.
2. To observe the fermentation of sugar by yeast.

Chapter – 3 Synthetic fibres and Plastics
1. To study the water absorbing property of clothing materials made from different fibres.
2. To study the burning characteristics of dress materials made from different fibres.
3. To study the structure of different fibres.
4. To compare the tensile strength of different fibres.

Chapter – 4 Materials : Metals and non-Metals
1. To show that metals are malleable in nature.
2. To check the basic nature of metal oxides.
3. To observe the reaction of metals and non-metals with acids.
4. To observe the reaction of metals with bases.
5. To show that more reactive metal can displace less reactive metal from its salt solution.
6. To show that the oxides of a non metal is acidic in nature.

Chapter – 5 Coal and Petroleum
No Activity

Chapter – 6 Combustion and Flame
1. To check whether a substance is combustible or not.
2. To show that air is necessary for combustion to take place.
3. To show that a combustible substance cannot burn below its ignition temperature.

Chapter – 7 Conservation of Plants and Animals
1. Collect information and make a list of points how is animal life affected by deforestation.
2. Find out the number of national parks, wild life sanctuaries and biosphere reserve in your area, district, state and country.
3. Find out the endemic plants and animals of the region you live. Collect their pictures and paste in your scrap book.

Chapter – 8 Cell – Structure and Functions
1. To observe the plants of a plant cell under a microscope.
2. To observe the different components of an animal cell.

Chapter – 9 Reproduction in Animals
1. To observe and study the eggs of frog.
2. To observe and identify the eggs of different oviparous animals. 
3. To observe the permanent slides of hydra.

Chapter – 10 Reaching the Age of Adolescence
1. To know about the importance of consuming iodised salt.
2. To identify the nutritious and junk food.
3. Organise a competition in your class on the topic ‘Diet for Adolescents’. Use your creative ideas to make a charts or posters on this topic and display in the class.
4. To know how does exercise affects our performance.

Chapter – 11 Force and Pressure
1. To identify different action as a push or pull.
2. To observe the effect of forces on different objects.
3. To show that magnetic force is non contact.
4. A liquid exerts pressure on the walls of the container.
5. Liquids exert equal pressure at the same depth.
6. Pressure at a point in a liquid depends on its depth.
7. To get an idea about the magnitude of atmospheric pressure.

Chapter – 12 Friction
1. To observe that the force of friction always opposes the motion.
2. To show that a rough surface exerts greater frictional force than a smooth surface.
3. To show that rolling friction is smaller than the sliding friction.

Chapter – 13 Sound
1. To show that a vibrating body produces sound.
2. To observe that sound is produced due to vibration.
3. To observe the vibrations of a vibrating body.
4. To make a musical instrument called Jal-tarang.
5. To make a model to demonstrate the working of vocal cords.
6. To show that sound can travel through solids.
7. To show that sound can travel through liquids.
8. To show that sound can travel through air but not through vaccum.
9. To observe and understand the working of eardrum.
10. To show that the loudness of sound depends on the amplitude of vibration.

Chapter – 14 Chemical Effects of Electric Current
1. To show that distilled water is a non-conductor of electricity.
2. To show that water containing any salt, is a conductor of electricity.
3. To test the conductivity of some liquids using a magnetic detector.
4. To observe the change in colour due to chemical effect of electric current.
5. To observe the deposition of copper using copper electrodes and copper sulphate solution.

Chapter – 15 Some Natural Phenomena
1. To show that like charges repel each other, whereas unlike or opposite charges attract each other.
2. To observe the transfer of charge through a metal conductor.
3. Collect information about the Kashmir, Bhuj and Nepal earthquakes from old newspapers, magazines and Internet. Prepare a report on the suffering of the people during the earthquakes. Also mention the rehabilitation work done by different organisms.
4. Collect information about the places where earthquakes are followed by tsunami. Mark these places on an outline map of the world. Also collect accounts of devastation caused by the tsunami at these places.

Chapter – 16 Light
1. To verify the first law of reflection i.e., angle of incidence is equal to the angle of reflection.
2. To verify the second law of reflection i.e., the incident ray, reflected ray and the normal at the point of incidence lie in the same plane.
3. To understand the formation of image by a plane mirror.
4. To observe that reflected light can be reflected again.
5. To make a kaleidoscope.
6. To observe the dispersion of light with the help of a plane mirror.
7. To observe that iris controls the amount of light entering the eye.

Chapter – 17 Stars and the Solar System
1. To demonstrate different phases of the Moon.
2. Go to the centre of your room and start rotating. In which direction will the objects in the room appear to move?
3. To observe the movement of pole star.

Chapter – 18 Pollution of Air and Water
1. A recently released report says with the continuous exposure to air pollution, the number of children suffering from chronic bronchial asthama is on rise in Delhi. Conduct a survey of households in your neighbourhood and among friends to find out how many children are suffering from respiratory problems.
2. Make a list of air pollutants mentioned above. Also mention their sources and effects on the environment and human beings in a tabulised form.
3. Ask your classmates and students of other classes how do they commute to the school. There are various options like walking, going by bicycle, travelling by bus or other public transport, using a car individually or travelling by car pool. Discuss about the impact of each of these options on the quality of air.
4. To observe the quality of water from different sources.
5. Conduct a survey on the sorces of water in your neighbourhood. Also investigate about the method of sewage disposal in your locality.
6. To make a water filter.