Here are 365 activities to discover that science is a part of our daily life, that you can take part in it with pleasure, that it can be easy, sometimes surprising and funny and always accessible to everyone, from 7 to 107. All you need to have is a curiosity about the world around you. Throw yourself into this adventure across the sciences, go at your own pace, follow your fancy and don't necessarily stick to the days of the year. Keep in mind, however, that some activities take place over a couple of days, you will see this as you go. Set your imagination free, do or redo the experiments as you wish and try and invent better ways to make them work. If you have problems, if you need a clearer explanation, or if you want to share your ideas. But most importantly, don't hesitate to play, draw, cut, construct, write and think—there is no better way to learn than through this maxim: Tell me and I'll forget, Show me and I may remember, Involve me and I'll understand.

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