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    bf:summary [ a bf:Summary ;
            rdfs:label "Kids will explore one of Earth's important energy resources with Wind Energy Projects from the history of wind energy, to how we use it today. They'll move a car with a balloon, use wind to play a music box, and more. Each project includes color photos and easy to follow instructions. Aligned to Common Core Standards and correlated to state standards. Applied to STEM Concepts of Learning Principles." ] ;
    bf:tableOfContents [ a bf:TableOfContents ;
            rdfs:label "What is wind energy? -- How we use wind energy -- Wind energy history -- Materials -- Pool noodle sailboats -- Balloon car -- Lifting challenge -- Wind music box -- Terrific turbine generator -- Conclusion -- Quiz -- Glossary." ] ;
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            bf:mainTitle "Wind energy projects" ] .