These kids are playing a game, trying to move a person with a simple machine. Which will work better-an inclined plane or a lever? Readers will see them compare the simple machines to decide. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
لغة الإنجليزية ● شكل PDF ● ISBN 9781467782975 ● الناشر Lerner Publishing Group ● نشرت 2015 ● للتحميل 3 مرات ● دقة EUR ● هوية شخصية 5034068 ● حماية النسخ Adobe DRM
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