Interest Level: Grades 4-7

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  Emotional Health

  $21.95 – $24.95Price range: $21.95 through $24.95
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  Energy for the Future (Set of 6)

  $59.70 – $149.70Price range: $59.70 through $149.70
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  Energy from Algae

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Energy from the Earth

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Energy from the Sun

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Energy from Water

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Energy from Wind

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Energy Technology Inspired by Nature

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Engineering Challenges
  (Set of 8)
  

  $79.60 – $199.60Price range: $79.60 through $199.60
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  Engineering for Avalanches and Landslides

  $9.95 – $24.95Price range: $9.95 through $24.95
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  Engineering for Disaster
  (Set of 6)
  

  $59.70 – $149.70Price range: $59.70 through $149.70
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  Engineering for Earthquakes

  $9.95 – $24.95Price range: $9.95 through $24.95