1. What gets hotter the more it works?
Answer: A stove

2. What shines bright and warms the world?
Answer: The sun

3. What burns but has no flame?
Answer: Friction

4. What melts everything in its path but never moves?
Answer: The sun’s rays

5. What makes you sweat without touching you?
Answer: Heat

6. What disappears when you cool down?
Answer: Steam

7. What can boil rivers yet freeze hearts?
Answer: The desert sun

8. What feels hotter when you wear black?
Answer: Sunlight

9. What comes with flames but not always fire?
Answer: Heatwave

10. What dances and flickers but never sleeps?
Answer: Fire

11. What can roast, toast, and melt?
Answer: Heat

12. What glows red when angry?
Answer: Lava

13. What burns wood but not words?
Answer: Fire

14. What rises from boiling water?
Answer: Steam

15. What can warm your house or burn it down?
Answer: Fire

16. What shines and burns without touching earth?
Answer: The sun

17. What can cook food without a flame?
Answer: The oven

18. What melts metal in a factory?
Answer: A furnace

19. What burns without oxygen?
Answer: The sun’s plasma

20. What makes deserts dry and oceans shimmer?
Answer: Heat

21. What leaves you thirsty in summer?
Answer: The heat

22. What can make a shadow shorter?
Answer: The hot midday sun

23. What can make an egg fry on pavement?
Answer: Extreme heat

24. What disappears when the sun sets?
Answer: Heat

25. What comes from friction between hands?
Answer: Warmth

26. What glows deep inside the Earth?
Answer: Magma

27. What brings both comfort and danger?
Answer: Fire

28. What makes air shimmer on a hot day?
Answer: Heat waves

29. What can turn snow into water?
Answer: Heat

30. What lives in the desert and breathes fire?
Answer: The sun

31. What can cook your skin if you stay too long?
Answer: Sunlight

32. What comes before sweat?
Answer: Heat

33. What do you turn up when you’re cold?
Answer: The heater

34. What crackles in a campfire?
Answer: The heat in the wood

35. What’s invisible but can burn your face?
Answer: Sun rays

36. What’s too hot to touch but cools the night?
Answer: Lava rock

37. What rises in the kitchen when you bake?
Answer: Heat

38. What can turn metal into liquid?
Answer: Heat

39. What makes glass soft?
Answer: High temperature

40. What can burn in a wire?
Answer: Electric heat

41. What can’t you see but can cook your food?
Answer: Microwave heat

42. What can make your tongue tingle?
Answer: Spicy heat

43. What warms your hands in winter?
Answer: A fire or heater

44. What cools the heat away?
Answer: Wind

45. What roars in the forge?
Answer: The heat of fire

46. What can kill and cure?
Answer: Heat

47. What can burn you from 93 million miles away?
Answer: The sun

48. What’s hotter than summer and brighter than gold?
Answer: The sun’s core

49. What is hot, red, and alive underground?
Answer: Lava

50. What cooks without pots or pans?
Answer: Sunlight

51. What makes volcanoes erupt?
Answer: Extreme heat

52. What can bend metal if strong enough?
Answer: Heat

53. What disappears when rain arrives?
Answer: Heatwave

54. What makes mirages on the road?
Answer: Heat

55. What can bake bread and blister skin?
Answer: Heat

56. What can make water dance?
Answer: Boiling heat

57. What powers a sauna?
Answer: Steam heat

58. What causes deserts to form?
Answer: Heat and dryness

59. What helps the dough rise?
Answer: Warmth

60. What shines at dawn and burns by noon?
Answer: The sun

61. What can wake a flower but wilt a leaf?
Answer: Heat

62. What can make you faint outdoors?
Answer: Sun heat

63. What’s invisible but makes air tremble?
Answer: Heat

64. What can fry circuits in machines?
Answer: Overheating

65. What cooks the desert sands into glass?
Answer: Intense heat

66. What makes engines run?
Answer: Combustion heat

67. What is hotter than fire but not visible?
Answer: Plasma

68. What lives in the forge and breathes flames?
Answer: Heat

69. What makes your cheeks red and your body sweat?
Answer: Heat

70. What cools down at night but rules the day?
Answer: The sun

71. What hides in volcanoes?
Answer: Molten heat

72. What makes the desert shimmer like water?
Answer: Heat waves

73. What can roast marshmallows or start wildfires?
Answer: Fire

74. What’s too hot for comfort but perfect for coffee?
Answer: Steam

75. What cooks you slowly at the beach?
Answer: Sun heat

76. What spreads quickly in summer fields?
Answer: Fire

77. What can be measured in degrees but felt on skin?
Answer: Heat

78. What can boil a pot or warm a heart?
Answer: Heat

79. What can make air shimmer like silver?
Answer: Heat

80. What lives in the kitchen and hums when cooking?
Answer: The oven’s heat

81. What rises up from desert sand?
Answer: Heat haze

82. What can turn solid into vapor?
Answer: Heat

83. What powers a hot air balloon?
Answer: Heat

84. What can you feel but never see?
Answer: Heat

85. What disappears with a breeze?
Answer: Heat

86. What’s the difference between ice and water?
Answer: Heat

87. What can kill frost?
Answer: Heat

88. What rises from a cup of tea?
Answer: Steam

89. What glows in embers after flames die?
Answer: Heat

90. What cooks your dinner and keeps you cozy?
Answer: Fire

91. What burns inside engines?
Answer: Heat energy

92. What makes the sun shine and the stars burn?
Answer: Nuclear heat

93. What fills a sauna like a fog?
Answer: Steam heat

94. What can warm hearts on cold days?
Answer: Heat of kindness

95. What’s invisible but deadly in waves?
Answer: Extreme heat

96. What makes a mirage dance?
Answer: Rising heat

97. What cooks the Earth’s crust from below?
Answer: Geothermal heat

98. What warms soup and souls alike?
Answer: Heat

99. What can you spread but not hold?
Answer: Heat

100. What rises when fire fades?
Answer: Heat