Holi vacation assignment grade 8 (English/Math/Science)

 

English Passage

The Role of Technology in Education

Technology has changed the way students learn and teachers teach. In modern classrooms, computers, projectors, and the internet help students understand lessons more clearly. Online videos, educational apps, and digital books make learning more interesting and interactive.

Technology also allows students to learn from anywhere. Online classes and virtual discussions help learners connect with teachers and classmates even when they are far apart. Students can easily search for information and complete research projects using digital tools.

However, technology must be used wisely. Too much screen time can affect health and reduce physical activity. Therefore, students should balance the use of technology with outdoor activities and face-to-face communication.

Questions

1.     How has technology changed education?

2.     Name two technological tools used in classrooms.

3.     How does technology help students learn from anywhere?

4.     What is one disadvantage of excessive technology use?

5.     Why is balance important when using technology?

Ratio, Fraction, and Percentage (Math)

1.     Simplify the ratio 24 : 36 : 48.

2.     Convert 5/8 into a percentage.

3.     Find 3/5 of 250.

4.     Express 75% as a fraction in simplest form.

5.     The ratio of milk to water in a mixture is 4 : 1. How much water is mixed in 25 liters of solution?

6.     Subtract 7/9 − 2/9.

7.     A shirt costs Rs. 1200. Find the discount amount if the discount is 15%.

8.     Increase 200 by 20%.

9.     The ratio of angles in a triangle is 2 : 3 : 4. Find the angles.

10.  Convert 0.375 into a fraction and percentage.

Electricity and Magnetism (Science)

Electricity and magnetism are two forms of energy that are strongly connected and form the basis of many modern technologies. Electricity is produced by the movement of tiny charged particles called electrons. When electrons move through a closed path known as an electric circuit, an electric current is created. A simple circuit includes a power source (such as a battery), conducting wires, and a device like a bulb or motor. If the circuit is broken, the electric current stops flowing.

Materials that allow electricity to pass easily are called conductors, while those that resist the flow of electricity are called insulators. Proper insulation is important for safety because it prevents electric shocks.

Magnetism is the force exerted by magnets, which attract magnetic materials such as iron and steel. Magnets have two poles—north and south—and magnetic force is strongest at these poles. Like poles repel each other, while unlike poles attract.

Electricity and magnetism are closely linked through electromagnetism. When electric current flows through a coil of wire, it produces a magnetic field. Wrapping the wire around an iron core makes a strong electromagnet. Electromagnets are widely used in electric motors, generators, loudspeakers, and cranes used in recycling industries.

Learning about electricity and magnetism helps us understand how electrical devices work and how energy can be converted from one form to another.

Questions

1. What is an electric circuit?
2. What happens when a circuit is broken?
3. Define conductors and insulators.
4. How is an electromagnet produced?
5. Name two devices that use electromagnets.