4. The _______________________________ sign is used in email addresses between the user's name and the domain name.

5. A _______________________________ is the shortened form of a weblog.

6. A _______________________________ is a software program that enables you to view web pages and other documents on the Internet

7. To _______________________________ means to copy data from one computer system to another using the Internet.

8. The unique address of any web document is called its _____________________________.

1. To _______________________________ means to move from one website to another on the Internet.

2. ‘WWW’ in a URL stands for _______________________________

3. In browsers, _______________________________ is used to identify a space where the web pages that you have visited are stored in your computer.

1. Physicist and chemist who conducted pioneering research on radioactivity

2. Discovered the principles underlying electromagnetic induction, diamagnetism and electrolysis

3. Formulated the laws of motion and universal gravitation

4. Discovered penicillin

5. Developed the Theory of Relativity

6. The Wizard of Menlo Park

7. Contributed to the design of the modern alternating current (AC) electricity supply system

8. Made observations that laid the foundation for modern physics and astronomy

9. Received the Nobel Prize for his understanding of atomic structure and the quantum theory

1. A _____________________________ (MEETRLCAOT) is an instrument that is used for measuring the purity of milk.

2. A _____________________________ (OMANYD) is a machine used for converting mechanical energy into electrical energy.

4. An _____________________________ (DNESOPCOE) is an instrument that is used to look inside the human body.

5. A _____________________________ (IMROCOSCEP) is used to view very small objects such as plant and animal cells

6. A _____________________________ (OMRETHTATS) is device that automatically regulates temperature in certain electrical appliances

7. A _____________________________ (GERIASPMHSO) is an instrument that measures and records the magnitude of earthquakes

8. A _____________________________ (MHOS SACEL) is a scale of hardness that is used for testing the scratch-resistance of minerals

3. A _____________________________ (RABORETEM) is an instrument that is used for measuring atmospheric pressure, forecasting the weather and for measuring altitudes.

1. It is widely used for manufacturing batteries, transistors and chips in the electronic industry. _____________________________

2. It is the main component of stainless steel and is the most widely used metal. _____________________________

3. It is the main source of aluminium which is used for manufacturing aeroplanes and utensils. _____________________________

4. It is one of the rarest and most valuable metals in the world. _____________________________

5. It is one of the most widely used gemstones and is the hardest known substance in the world. _____________________________

6. It is one of the heaviest metals, and it is used in alloys to create materials with high resistance to wear and corrosion. _____________________________

7. It is a precious yellow metal and is widely used for making ornaments. _____________________________

8. It is the oldest mineral known to human beings and is used for making electrical wires. ____________________________