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1.What is my body made of [防断更微0].jpg
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10.How do maglev trains work[防断更微0].jpg
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11.Does a butterfly remember its time as a caterpillar[防断更微0].jpg
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12.How do we get taller[防断更微0].jpg
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13.How do animals camouflage[防断更微0].jpg
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14.Is there a magnet so strong that it will pull us by the iron in our blood[防断更微0].jpg
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15.How does Velcro® stick[防断更微0].jpg
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16.How does a honeybee know what job to do[防断更微0].jpg
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17.How do our eyes work so we can see[防断更微0].jpg
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18.How do you make gears spin[防断更微0].jpg
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19.Why do freckles come in dots on your face[防断更微0].jpg
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2.When did time begin [防断更微0].jpg
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20.Why doesn’t rain taste salty[防断更微0].jpg
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21.Do dogs cry[防断更微0].jpg
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22.How do bogies get in my nose[防断更微0].jpg
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23.Why will the Sun explode and make us extinct[防断更微0].jpg
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24.Why don’t jellyfish tentacles get tangled[防断更微0].jpg
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25.How do the molecules in air produce air pressure[防断更微0].jpg
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26.Why does chocolate taste so nice[防断更微0].jpg
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27.How does electricity get in your body to shock someone[防断更微0].jpg
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28.Why do my muscles hurt when I exercise[防断更微0].jpg
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29.Is there an extinct species of penguin[防断更微0].jpg
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3.How was the first person born [防断更微0].jpg
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30.How does a light light up[防断更微0].jpg
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31.Why do chemicals explode when mixed together[防断更微0].jpg
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32.How many galaxies are there[防断更微0].jpg
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33.Did dinosaurs have wings[防断更微0].jpg
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34.Is it possible to transfer a human brain into a robot[防断更微0].jpg
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35.How does the Moon affect the tides of the sea[防断更微0].jpg
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36.Why doesn’t it tickle when you tickle yourself[防断更微0].jpg
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37.How do birds fly[防断更微0].jpg
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38.How do planes go so fast[防断更微0].jpg
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39.Why does our skin go all wrinkly in the bath[防断更微0].jpg
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4.Why does water feel wet [防断更微0].jpg
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40.Why does the Sun seem to follow me everywhere I go[防断更微0].jpg
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41.How do you make toilet paper[防断更微0].jpg
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42.Why do stars twinkle[防断更微0].jpg
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43.What’s inside your face and head other than your brain[防断更微0].jpg
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44.Why can’t we live without trees[防断更微0].jpg
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45.How does our body heal[防断更微0].jpg
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46.Why do some trees lose leaves in the summer[防断更微0].jpg
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47.How do volcanoes erupt[防断更微0].jpg
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48.How exactly is glass made[防断更微0].jpg
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49.Why does our hair turn grey when we get older[防断更微0].jpg
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5.Could you jump off the world [防断更微0].jpg
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50.Do aliens exist[防断更微0].jpg
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51.Do plants have feelings[防断更微0].jpg
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52.Why do humans get old and die[防断更微0].jpg
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53.Why are bubbles round and not any other shape[防断更微0].jpg
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54.How do you fall asleep[防断更微0].jpg
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55.Why do we pollute Earth[防断更微0].jpg
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56.Why, when you’re doing boring things, does time go slowly[防断更微0].jpg
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6.Why is the sky blue [防断更微0].jpg
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7.Will scientists bring back the dinosaurs [防断更微0].jpg
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8.Where does my belly button go [防断更微0].jpg
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9.Why does ice cream melt[防断更微0].jpg
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