Wie funktioniert eine Lunge

What a cool science project. Blow into the straws and watch the lungs inflate!

Awesome Science Experiment: Make Hot Ice with Baking Soda and Vinegar

Science Experiment for Kids - How to Make Hot Ice with Baking Soda and Vinegar

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This is beautiful! An animated chart of 42 North American butterflies (from Tabletop Whale - Eleanor Lutz -

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