| Foreword |
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7 | (2) |
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Why is science so important? |
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9 | (2) |
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What makes someone a scientist? |
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Can we ever be 100% sure? |
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11 | (2) |
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Could you create a human being in a laboratory? |
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13 | (2) |
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Why is there no air in space? |
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What is dark matter doing in space? |
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How was the first person born? |
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15 | (2) |
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17 | (2) |
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Why are there bubbles in boiling water? |
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Why doesn't oil mix with water? |
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Could you jump off the world? |
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19 | (2) |
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Why is there less gravity on the moon? |
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21 | (2) |
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Why do I see different colors in the sky at sunset? |
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Will scientists bring back the dinosaurs? |
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23 | (2) |
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Is it possible to find a fossil that no one has discovered yet? |
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Where does my belly button go? |
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25 | (2) |
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27 | (2) |
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Is fire a solid, liquid, or gas? |
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How do maglev trains work? |
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29 | (2) |
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How does a maglev train stop? |
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Does a butterfly remember its time as a caterpillar? |
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31 | (2) |
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How do butterflies sleep? |
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How do spiders make webs? |
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33 | (2) |
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What causes growing pains? |
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How do animals camouflage? |
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35 | (2) |
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Is there a magnet so strong that it will pull us by the iron in our blood? |
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37 | (2) |
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39 | (2) |
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How does a honeybee know what job to do? |
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41 | (2) |
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Why do bees lose their stingers when they sting? |
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How do our eyes work so we can see? |
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43 | (2) |
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How do two eyes make one picture? |
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How do you make gears spin? |
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45 | (2) |
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Why do freckles come in dots on your face? |
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47 | (2) |
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Why doesn't rain taste salty? |
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49 | (2) |
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51 | (2) |
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How do boogers get in my nose? |
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53 | (2) |
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Why will the sun explode and make us extinct? |
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55 | (2) |
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Why don't jellyfish tentacles get tangled? |
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57 | (2) |
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How do fish see at night? |
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How do the molecules in air produce air pressure? |
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59 | (2) |
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How many atoms are in a penny? |
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Why does chocolate taste so good? |
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61 | (2) |
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When electricity travels through wires, what does it look like? |
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63 | (2) |
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How does electricity get in your body to shock someone? |
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Why do my muscles hurt when I exercise? |
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65 | (2) |
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Why does my brother smell when he exercises? |
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Is there an extinct species of penguin? |
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67 | (2) |
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How does a light light up? |
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69 | (2) |
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Why do chemicals explode when mixed together? |
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71 | (2) |
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How many galaxies are there? |
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73 | (2) |
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How old is the solar system? |
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Does Earth shrink, expand, or remain the same over time? |
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Did dinosaurs have wings? |
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75 | (2) |
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77 | (2) |
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Is it possible to transfer a human brain into a robot? |
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How does the moon affect the tides of the sea? |
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79 | (2) |
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Why doesn't it tickle when you tickle yourself? |
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81 | (2) |
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83 | (2) |
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How do planes go so fast? |
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85 | (2) |
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Why does our skin go all wrinkly in the bath? |
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87 | (2) |
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Why does the sun seem to follow me everywhere I go? |
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89 | (2) |
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Why is the moon sometimes out in the day? |
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How do you make toilet paper? |
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91 | (2) |
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93 | (2) |
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What's inside your face and head other than your brain? |
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95 | (2) |
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Why do different foods taste sweet, sour, and bitter? |
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Why can't we live without trees? |
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97 | (2) |
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Why do trees swallow carbon dioxide? |
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99 | (2) |
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Why do you feel cold with a fever? |
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Why do some trees lose leaves in the summer? |
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101 | (2) |
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103 | (2) |
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How do rocks turn into lava? |
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How exactly is glass made? |
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105 | (2) |
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Why are diamonds so hard? |
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Why does our hair turn gray when we get older? |
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107 | (2) |
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109 | (2) |
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What is at the other end of a black hole? |
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Do plants have feelings? Can plants speak? |
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111 | (2) |
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Are there any meat-eating plants? |
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Why do humans get old and die? |
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113 | (2) |
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Why are bubbles round and not any other shape? |
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115 | (2) |
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117 | (2) |
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Why do we dream and how do dreams appear in our brain? |
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119 | (2) |
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What are we going to do with all the waste? |
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How can we stop pollution? |
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Why, when you're doing boring things, does time go slowly...? |
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121 | (2) |
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What do they put in shots? |
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123 | (1) |
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Once you get to the end of the universe, what color is it? |
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123 | (4) |
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Why was Covid worse than other illnesses? |
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127 | (2) |
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Is there anything that children can do to help stop climate change? |
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129 | (4) |
| Glossary |
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133 | (2) |
| Index |
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135 | |
