Irousek

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

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

Bohnentagebuch - Projekt zur Pflanzenkunde an der Waldorfschule

Bohnentagebuch - Projekt zur Pflanzenkunde an der Waldorfschule