4 Ivan Val 8B2

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Across
  1. 3. – the way in which a computer or set of computers works.
  2. 7. – sound, that is produced or increased in an object by sound waves from another object
  3. 11. a form of energy hat comes especially from nuclear reactions, which is very harmful to living thingsif present in large amount
  4. 14. – a type of solid, liquig or gaz that has particular characteristics
  5. 15. – a piece of machinery with moving parts that changes power from steam, oil etc into movement
  6. 16. – a process in which a new idea or method is tested to see if it is useful or effective
  7. 18. – a number that when multiplied by itself certain number of times, equals the number that you have
  8. 20. – a method of calculating in which you add same number to itself a particular number of times
  9. 22. – if a number is increased to the power of three, four, five, etc, it is multiplied to itself three, four , five etc times
  10. 23. – electrical force, measured in volts
  11. 24. – geometry figure, which has got six angles (all of them is 120 degrees)
  12. 27. – a system in a computer, that helps all the programs in it to work together
  13. 28. – a set of instructions for solving a mathematical problem, making a computer rogram etc that are followed in a fixed order
  14. 30. – the study of the nature and development of living things is affected by their genes
  15. 31. – very large exploding star
  16. 34. – a piece of equipment intended for a particular purpose, for example for recording or measuring
  17. 35. – the process of finding out now many times one number is contained in another
  18. 37. – the act of subtract (compare addition)
  19. 41. – used to describe the type of computer
  20. 42. – one of the types of pieces of matter including electrons, protons and neutrons that make up atoms
  21. 44. – power that produces movement in another object
  22. 45. – an official order that forbids smth from being used or done, like ban on playing computer games
  23. 49. – the degree to which a substance can stop an electric current passing through
  24. 52. – a complex word or sentence contains a main part and one or more other parts
  25. 53. – a chemical change that happens when two or more chemical substances mixed together
  26. 54. – an electrical force is put into a piece of electrical equipment such as battery
  27. 55. – unidentified flying object, a strange object in the sky, sometimes thought to be a spaceship from another world
Down
  1. 1. – the part of a computer keyboard that has the number and command keys on it
  2. 2. – a piece of equipment used for discovering the presence of light, heat, sound etc, especially in small amounts
  3. 4. – a plastic or rubber tube containing wires that carry telephone messages, electronic signals etc
  4. 5. – a flat circular piece of plastic or metal used for storing computer information
  5. 6. – a large amount of data (information) stored in a computer system so that you can find and use it easily
  6. 8. – an amount of smth that can be counted or measured
  7. 9. – one of the written signs that represent the numbers 0 to 9
  8. 10. – 1. The force that causes two objects to move towards each other because of their mass; 2. The act of gravitating towards smth
  9. 12. – the force that keeps an object in the same position or state of movement until it is moved or stopped by another force
  10. 13. – a part of an atom that has no electrical charge
  11. 14. – a piece of plastic with holes in it, which into a wall and which you can connect electrical equipment to
  12. 15. – a force, caused by the movement and exchange of positively and negatively charged particles in atoms
  13. 17. – a heavy yellow metal that is an element and is used for jewelry, making coins, etc
  14. 19. – 1. The process of separating a light a liquid into it’s chemical parts by passing on electric current through it; 2. The process of using electricity to destroy hair roots and to remove unwanted hairs from your face, etc
  15. 21. – a soft heavy easily melted grayfish-blue metal, used for a water pipes, covering roofs, etc
  16. 24. – a piece of equipment that you wear over your ears to listen music, radio etc
  17. 25. – having the same center
  18. 26. – a heavy white metal that is an element, is radioactive, and is used to produce nuclear ower weapon
  19. 29. – a wheel that spins inside a frame and is used for keeping ships and aircraft steady or as a child toy
  20. 32. – the process of adding numbers or amount to take a total
  21. 33. – a chemical compound, that is mainly used to improve the soil for growing crops
  22. 36. – a very small piece of matter that carries positive electricity and that together with a neutron forms the nucleus of an atom
  23. 38. – one of a set of numbers which give the exact position of a point on a map, computer screen, space etc
  24. 39. – the flat glass part of a television or computer
  25. 40. – shaped like a circle
  26. 43. – a machine that produce electricity
  27. 46. – a very small piece of matter that moves around the nucleus
  28. 47. – a shape with four equal straight sizes, especially one is not a square
  29. 48. – one of the large group of stars that make up the universe
  30. 50. – a heavy silver-white metal, that is liquid at ordinary temperatures, and it used at thermometers
  31. 51. – an arrangement of numbers, letters or signs on a grid used in maths, science, IT etc