Science: Questions?

1. What is food needed for?2. Why are water and fibre needed in our diets?3. What are the three reasons our food/’raw materials’ are needed in our body?4. What is the test for starch? What colour does it become?5. Same for Protein, Glucose and fat.6. What does adaptation mean?7. Ways noise can be reduced?8. What is the difference between heat and temperature? What are they measured in?9. What is another name for heat energy? //10. What is a pure element?11. What causes extinction and how can we stop it 12. What is a nature reserve?13. What are pesticides?14. How is dissolved food carried around the body15. Where in the body are villi found16. What are arteries and blood vessels17. What are Antibiotics?18. What does aspirin do19. What are Kingdoms?20. Why don’t fish have lungs?21. What are animals without backbones and with backbones called22. What are Oxides23. What is Hydrogen and what is it made of24. What is the formula of carbon dioxide?25. What is formed when a chemical reaction takes place26. Which acid contains only 2 elements27. What is made when hydrogen atoms and the oxygen atoms join together28. What is the formula of calcium carbonate29. When do iron and sulphur react together30. What is magnesium oxide31. What does precipitate, reactants and products mean32. Explain if evaporation is a chemical reaction33. Why is there no formula for mineral water34. What is a pure substance35. What is half the height of the wave called36. What does the loudness of the sound depend on37. What can you use a oscilloscope for38. What is frequency and what is it measured in39. What is the distance the tops of two waves called40. What happens when sound travels through air41. What does sound travel through and why42. How would you find out whether everyone can hear the same sound43. What are impulses44. What is interface45. What is the disease called caused by a lack of protein in the diet.46. When you eat protein your body breaks into what47. What shape is the magnetic field when 2 bar magnetic are placed next to each other 48. How can you change the strength of an electromagnet49. How could you make a very strong electromagnet50. What is a electromagnet usually called when it is used in a relay51. What is a compass52. Why is one end of a compass called the north seeking pole53. Who is William Gilbert

54. What are all the magnetic material55. How can heat loss be reduced by using insulating materials containing trapped air56. What are the names of the fossil fuels that are used for generating electricity ,heating our

homes and cooking57. What is heat mainly travelled through58. What do all hot things give out59. Describe three ways in which infrared radiation and light are similar?60. Why do solids expand when they are heated?61. What temperature scales are commonly used in in the UK?62. What do insulators often contain?63. What is the temperature of a bulb filament, the inside of a fridge, your body and the inside?

of a freezer?64. What is the melting point of tungsten?65. Name the metal that will melt in your hand in 29 degrease?66. What temperature does sodium melt in and boil in?67. What is the freezing point of iron, oxygen and sodium?68. What is the air we breathe and the air we breathe out called?69. Why is inhaled air dirtier than exhaled air?70. Why is there less oxygen in exhaled air than inhaled air?71. How do fish get oxygen from the water?72. Why are gills adapted to absorb lots of oxygen?73. What does the word aerobic mean and what is aerobic exercise?74. What is a frost bite and why and when does it happen?75. How many cells do many micro-organisms have?76. What is the smallest type of a microbe?77. Name one sort of fungus that is a microbe?78. Why are viruses difficult to see?79. What are viruses made of?80. What is replication?81. Name the single cell that does not contain a nucleus?82. What is an infectious disease?83. What are antibiotics?84. Bacteria that are not harmed by anti-biotic are said to be what? 85. What are liquids and gasses called? 86. Why are immunisation are given87. What does it mean if someone is immune to a disease88. How white blood cell destroy microbes89. Why is it important for a scab to a form quickly90. Why does it take time for antibiotics to produce91. Why do you get chickenpox once92. How can you make sure you never get measles93. What does AIDS stand for and what causes it94. What is lymphocytes95. What is the chemical formula for hydrochloric acid, sulphuric acid, nitric acid?96. What does a metal + oxide make?97. What does a metal + acid make?98. What does a carbonate+ acid make?99. What is emphysema?100. What is a population?101. Name all of the 5 vertebrates.102. Name the 8 groups of invertebrates and their main features to identify them103. Name the 4 main groups for arthropods.104. What is one way of getting temporary deafness?105. How can partial deafness be improved?106. Why does sound travel fastest in solids?

107. What is the relationship between pitch and frequency?108. What is frequency?109. What in decibels is within the normal hearing range of a person?110. What is the threshold of hearing?111. What are the three primary colours of light?112. What are the three secondary colours of light?113. How can you make coloured light using filters?114. Why do black objects appear black?115. What are the colours of a rainbow called?116. What is the separation of light called?117. What is a prism?118. What are the three rules for reflection? The image is…119. Name some similarities between a pinhole camera and the eye.120. Name an object that transmits light, reflects light and emits light.121. Why are shadows formed?122. Explain how the car starter motor works.

Start with, when the driver turns the ignition key..Use these words, small, armature, circuit, contacts, and solenoid?