We can see light. We know it makes plants grow. Light pours from the sun and from glowing light bulbs. But we can’t touch it, or hold it. What is light? Learn about this science basic, and then get hands-on with an experiment that will light up the classroom.
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语言 英语 ● 格式 PDF ● ISBN 9781474780148 ● 出版者 Capstone Global Library ● 发布时间 2019 ● 下载 3 时 ● 货币 EUR ● ID 7084370 ● 复制保护 Adobe DRM
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