| No. | Item | Definition |
|---|---|---|
| 1. | If a candle burns, wax melts. | Burning melts wax. |
| 2. | If air cools, it contracts. | Cooling reduces air volume. |
| 3. | If apples ripen, they sweeten. | Ripening makes apples sweeter. |
| 4. | If autumn comes, leaves fall. | Autumn brings falling leaves. |
| 5. | If babies are hungry, they cry. | Hungry babies often cry. |
| 6. | If batteries die, devices stop. | Dead batteries stop devices working. |
| 7. | If bees sting, it hurts. | Bee stings cause pain. |
| 8. | If bread gets stale, it hardens. | Stale bread becomes hard. |
| 9. | If butter gets warm, it softens. | Warm butter becomes soft. |
| 10. | If cats are happy, they purr. | Happy cats purr. |
| 11. | If clouds thicken, rain falls. | Thick clouds often bring rain. |
| 12. | If dust builds up, you sneeze. | Dust can trigger sneezing. |
| 13. | If eggs crack, they leak. | Cracked eggs let contents out. |
| 14. | If engines overheat, they stall. | Too much heat stops engines. |
| 15. | If fire lacks oxygen, it dies. | Fire needs oxygen to continue. |
| 16. | If flowers bloom, bees gather. | Blooming flowers attract bees. |
| 17. | If frost forms, roads whiten. | Frost makes roads look white. |
| 18. | If fruit rots, it smells bad. | Rotting fruit produces bad smells. |
| 19. | If fuel runs out, cars stop. | Cars need fuel to keep moving. |
| 20. | If glass fogs, vision blurs. | Fogged glass reduces clear sight. |
| 21. | If gravity acts, objects fall. | Gravity pulls objects downward. |
| 22. | If ink spills, it stains. | Spilled ink leaves marks. |
| 23. | If iron gets wet, it rusts. | Wet iron rusts. |
| 24. | If knives are sharp, they cut. | Sharp knives cut easily. |
| 25. | If leaves dry out, they crumble. | Dry leaves break apart easily. |
| 26. | If lemons ripen, they yellow. | Ripening turns lemons yellow. |
| 27. | If meat spoils, it smells foul. | Spoiled meat has a bad smell. |
| 28. | If metal gets hot, it expands. | Heated metal expands. |
| 29. | If milk sours, it smells off. | Sour milk has a bad smell. |
| 30. | If muscles work, they tire. | Working muscles become tired. |
| 31. | If oil heats, it thins. | Heat makes oil less thick. |
| 32. | If onions cook, they sweeten. | Cooking brings out onion sweetness. |
| 33. | If paint dries, it hardens. | Dry paint becomes hard. |
| 34. | If paper gets soaked, it tears. | Wet paper tears easily. |
| 35. | If people gossip, rumors spread. | Gossip helps rumors travel. |
| 36. | If plants lack light, they wilt. | Plants need light to stay healthy. |
| 37. | If prices rise, people buy less. | Higher prices reduce buying. |
| 38. | If rain falls, streets get wet. | Rain makes streets wet. |
| 39. | If rice cooks, it softens. | Cooking makes rice softer. |
| 40. | If rivers flood, fields drown. | Floods cover fields with water. |
| 41. | If roads are icy, cars slide. | Icy roads reduce traction. |
| 42. | If roots rot, plants die. | Rotten roots kill plants. |
| 43. | If ropes fray, they weaken. | Frayed ropes become less strong. |
| 44. | If rubber gets cold, it hardens. | Cold makes rubber harder. |
| 45. | If salt gets damp, it clumps. | Moisture makes salt stick together. |
| 46. | If shoes don’t fit, feet hurt. | Poor fit causes foot pain. |
| 47. | If snow melts, rivers rise. | Melting snow raises river levels. |
| 48. | If soil erodes, crops suffer. | Erosion harms crop growth. |
| 49. | If sugar gets wet, it dissolves. | Water breaks sugar apart. |
| 50. | If tires wear out, grip drops. | Worn tires hold roads less well. |
| 51. | If tomatoes ripen, they redden. | Ripening turns tomatoes red. |
| 52. | If traffic builds, tempers rise. | Heavy traffic makes people impatient. |
| 53. | If urine stands, it smells. | Standing urine develops a bad odor. |
| 54. | If valves leak, pressure drops. | Leaks reduce system pressure. |
| 55. | If varnish dries, wood gleams. | Dry varnish gives wood shine. |
| 56. | If volcanoes erupt, ash spreads. | Eruptions send ash over wide areas. |
| 57. | If water freezes, it expands. | Freezing makes water take more space. |
| 58. | If waves crash, spray flies. | Breaking waves throw water into air. |
| 59. | If wax cools, it solidifies. | Cooling wax becomes solid. |
| 60. | If weeds spread, gardens suffer. | Weeds harm garden growth. |
| 61. | If wheels lock, cars skid. | Locked wheels lose traction. |
| 62. | If wind blows, flags flutter. | Wind makes flags move. |
| 63. | If windows open, air circulates. | Open windows let air move. |
| 64. | If wires cross, sparks fly. | Crossed wires can create sparks. |
| 65. | If wood gets wet, it swells. | Wet wood expands. |
| 66. | If wool gets wet, it shrinks. | Wet wool often becomes smaller. |
| 67. | If wounds reopen, they bleed. | Reopened wounds start bleeding again. |
| 68. | If wrists twist, joints ache. | Twisted wrists become painful. |
| 69. | If yarn gets wet, it stretches. | Wet yarn often lengthens. |
| 70. | If yarn tangles, knitting slows. | Tangles make knitting harder. |
| 71. | If yeast activates, dough rises. | Active yeast makes dough expand. |
| 72. | If yolks break, sauces split. | Broken yolks can ruin sauces. |
| 73. | If you bend glass, it snaps. | Glass breaks when bent. |
| 74. | If you chill butter, it firms. | Cold makes butter firmer. |
| 75. | If you cool steam, it condenses. | Cooling steam forms liquid. |
| 76. | If you cut onions, you cry. | Onions make eyes water. |
| 77. | If you dance, you burn energy. | Dancing uses energy. |
| 78. | If you drop an egg, it cracks. | Eggs crack when dropped. |
| 79. | If you drop glass, it breaks. | Dropped glass usually breaks. |
| 80. | If you eat too fast, you choke. | Fast eating can cause choking. |
| 81. | If you fold paper, it creases. | Folding makes a crease. |
| 82. | If you heat ice, it melts. | Heating ice causes melting. |
| 83. | If you heat water, it boils. | Heating water makes it boil. |
| 84. | If you knead dough, it smooths. | Kneading makes dough smoother. |
| 85. | If you open a tap, water flows. | Opening it releases water. |
| 86. | If you peel garlic, hands smell. | Garlic leaves a strong smell. |
| 87. | If you plant seeds, they grow. | Seeds grow when planted. |
| 88. | If you plug it in, it charges. | Plugging in starts charging. |
| 89. | If you practice, you improve. | Practice leads to improvement. |
| 90. | If you recycle, waste decreases. | Recycling reduces waste. |
| 91. | If you rush, you make mistakes. | Rushing causes mistakes. |
| 92. | If you skip sleep, you yawn. | Lack of sleep causes yawning. |
| 93. | If you smile, people smile back. | Smiles often spread. |
| 94. | If you study, you learn. | Studying leads to learning. |
| 95. | If you tighten a lid, it seals. | Tightening creates a seal. |
| 96. | If you twist a cap, it loosens. | Twisting opens many caps. |
| 97. | If you wash a car, it shines. | Washing makes it shine. |
| 98. | If you waste water, bills go up. | Water waste raises bills. |
| 99. | If you whisk cream, it thickens. | Whisking makes cream thicker. |
| 100. | If you zip a jacket, it closes. | Zipping shuts a jacket. |