Janice VanCleaves Technik für jedes Kind: Einfache Aktivitäten, die das Lernen erleichtern
25,78 €
What wing shape givesairplanes their lift?. How do rockets blast off into space?. Each of the activities is broken down into its purpose, a list of easy-to-find materials, step-by-step instructions, expected results, and a simple scientific explanation.
Jetzt bei Ebay:
