Hello,
Last week it was primary science week and we have some homework related to that. We have to make a list and describe the processes of science we do in the daily life.
1. Boiling the kettle - heating and change of state
2. Morning dew - cooling off and change of state
3. Communication between people - sound waves, vibrations through air and your eardrum picks it up
4. Playing the piano - strings in the piano vibrate causing sound waves
5. Take off sweater and hair stands up - static electricity
6. Making a rhythm by striking glasses that are filled up with different amounts of liquid - different air columns causes different sound waves
7. Making ice cream - cooling off, change of state
8. Finding a cooler spot in the room - heating by the sun and shade is cooler because sun can't get there
9. Sun rays through crystal to make rainbows - light is broken in different directions and causes our eyes to see rainbows
10. Drawing silhouettes for art - block sun rays to create shadow of your body outline
11. Seeing a rainbow in the sky - refraction of sun rays
12. Using a mirror to do your hair in the morning - reflection of sunlight
13. Seeing yourself differently in a spoon - concave or convex surface distort images
14. Enjoying looking through a kaleidoscope - light bounces and reflects off objects and mirrors
15. Using a magnifying glass to read small letters - the convex glass bends light rays outward to make the image seem smaller
16. Playing with dominoes and making the tiles fall - potential energy and kinetic energy
17. Making popcorn - heating, change of state, water pressure causes kernel to pop!
18. Magnets on the refrigerator - magnetism
19. Turning mobile - heating causes air to expand or retract (not phone)
20. Worm farm - food scraps rot and get eaten by worms, life cycle, excretion used as fertilizer
21. Using the thermometer - heating, change of matter, expanding silvery liquid
22. Street lights - electricity turns into light and heat energy
23. Taking photos on your camera - use of electric energy via battery and light reflects through lens
24. Antennae on cars for a radio signal - waves through air
25. Solar panels on houses for the environment - earth sciences, sun energy trapped electric energy
26. Viscosity of liquids - water is less viscose than golden syrup, food technology
27. Judo as a sport - forces, gravity
28. Swimming as a sport - water pressure, movement through water, food turned into energy
30. Using the phone to contact - electric energy into waves through air
31. Watching TV - electric energy into light and heat
32. Flying in an aircraft or a bird - aerodynamics, earth sciences
33. Is glass a liquid or solid - state of matter, viscosity
34. The intercom at school - electric energy into sound waves
35. A clock to know the time - movement of wheels, batteries, electric energy
36. The rain radar - sonar waves to detect water molecules in the air
37. Growing plants, fruit, vegetables - life cycle, earth sciences
38. Cookies - baking, change of state through heat and force, food technology
39. Coffee - dissolving granules in water
40. Baking powder - raising agent, change of state, food technology
41. Kitchen machine - electric energy into moving energy
42. Tap - water pressure
43. Driving a car - potential, kinetic energy, petrol into movement
44. Biking - potential, kinetic energy
45. Falling glass - gravity, change of state
46. Light bulb - electricity, light and heat energy
47. Dishwasher - electricity, water pressure
48. Washing hands with soap - dissolves dirt, no bacterial growth
49. Computer - electric energy, heat and light
50. Fan - electric energy, air flow
51. Heater - electric energy, warmth
52. Washing machine - electric, water pressure, soap, cleaning powder
53. Gas top cooking - gas, heat, light energy
54. Sunrise - earth science
55. Moon and planets, when walking from swimming at night - astronomy
56. Radio - sound waves, electric energy
57. Mt Wellington - earth science, volcano
58. Oven - electric energy, heat, changed matter
59. Drinking water - physical human sciences
60. Taking care of a pet - zoology
61. Cleaning teeth - human sciences
62. Opened jar of tomato sauce - fungal surface, bacterial growth
63. To open a jar of tomato sauce - energy, pressure
64. Trampoline - gravity\pulling, force, energy
65. Waiwera visit - geo thermal activity, heat
66. Bird eats worm - earth sciences, life cycle
67. Marble track - gravity
68. Ice cubes - change of state
69. Pedal on piano - changing sound waves
70. Breaking of cookies - food technology
71. Butter out of cream - food technology
72. Cottage cheese - food technology
73. Yoghurt making - food technology
74. Seasons changing - earth sciences
75. Coffee machine - electric energy, water pressure, heat
76. Using a fire to light up a candle - fuel like wood or wax changed into heat and light energy
77. Eating from the BBQ - change of coal into heat and light energy
78. Sporting on a rowing machine - food fuel into force and energy into movement of the machine
79. Futuristic T- Shirt materials - science of synthetic materials
80. Flushing the toilet - using force to press button to release water pressure
81. Baking edible volcanic rock - three recipes to make symbolic rock cycles types in the kitchen: igneous rock, sedimentary and metamorphic
82. Making a smoothie - use ice blocks and fresh fruit juice to make a thick smoothie, change of state
83. Exploding chocolate, Marvelous creations - pieces of lolly that react with liquid and air
84. Communicating with two cans and a string - vibrations, sound waves
85. Using a hairdryer in the morning - electric energy turned into heat energy and creating air flow
86. Playing in the bathtub with equipment, some sink, but some don't - matter, physics, natural world
87. Leaving fingerprints on the windows - human science, every person's fingerprint is unique Fact: If you are fingerprinting on paper, charcoal is the best thing to use.
88. Dying eggs for Easter and using food juice for it - beetroot, raspberry, onion, coffee, pigments (carotenoids and anthocyanins) give flowers or other things colour
89. Making your own paper - recycling, change of state from plant material to paper, dissolving paper materials and drying them out again
90. Having a wind catcher on your bike - air flow, aerodynamics
91. Making a tornado in a bottle of water - force of water, water pressure
92. Vegetable oil, food colouring and a pill - matter, and weight and mass
93. Cooked or uncooked eggs - change of state, the raw egg spins slower because it is fluid inside, the cooked egg spins faster because it solidified
94. Using a drill for something - electric energy into movement and force
95. Having an automatic garage opener - waves through the air, electricity
96. Mowing the lawn with a lawn mower - electricity into moving energy and cutting with a turning motor
97. Seeing an insect pollinating - nature science, living world
98. Tree sap squeezing out of the bark - it shows how the "blood" of the tree circulates, living world
99. A wind radar - waves through the air to detect different air pressure, wind is caused by air moving from high pressure to low pressure
100. Weather - rain, sunshine, clouds, rainbow, storms and cyclones or hurricanes caused by many different natural elements working together, earth and the living world
101. An earthquake and tsunami - earth science
102. Power lines on the sides of the roads - electricity flows
103. Microwave - electric magnetic energy
104. Watermelon and orange fall at the same speed - gravity, weight
105. Rusty nail outside on fence - iron reacts with carbon dioxide in the air
106. Meteor or a falling star - debris or trash in the sky entering earth's atmosphere
107. Sweet smelling food on the kitchen bench will attract many ants- living world
108. Half an apple turns brown because reaction with air - matter
109. Caterpillar turns into a butterfly - metamorphosis, living world
110. Snails move by relaxing and contracting their one foot muscle, they move on slippery slime - living world
111. Tadpoles turn into frogs - living world
112. Different birds have different beaks to suit their feeding habits - living world
113. Taste things (sweet, sour bitter and savoury) in different areas of your tongue - human science
114. Cold in Winter, put on layers of clothes to trap heat - earth sciences, living world, state of matter
115. Eating fish from oven, eyeball turns completely white through heat - change of state
116. Write secret messages with lemon juice and water, gets visible when paper is heated - change of state
117. Party balloon with helium gas floats, helium gas lighter than air - matter
118. Regular black tea with lemon juice gets lighter because lemon bleaches - chemical reaction, change of state
119. Blowing bubbles with dish washing liquid, water and sugar blow through straw and a bubble appears - matter (Air gets trapped inside soap bubble)
120. Metal plate gets too hot to touch, Ceramics plate doesn't - matter, heat energy
This is my list so far. I'm sure there's still lots of fun and funky science going on around us. Thank you!!!!!!!!!!!
These photos both have something to do with science. When you turn on the gas, it will turn into a fire and the fire heats up the stove. If you put the pan on the stove, it will heat the bottom of the metal pan which then becomes really hot. The heat from the fire is passed through and on by the metal of the stove and the pan onto the water. So the captured energy of the gas is changed into heat energy of fire, which is given to the metal and finally heats up the water. If you keep the pan on the stove long enough, the water will come to a boil when it reaches 100 degrees Celsius. It will then begin to bubble a lot. The next step is evaporation-steam! This sort of energy transmission would not work (or not as well as) in pots made up from other materials like wood, or cork.
