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How Many Pennies?
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  In this activity (pages 13-14), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.
   
What Smart Metal!
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  In this activity (pages 3-4), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.
   
Taking Its Temperature
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  In this activity (pages 5-7), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.
   
Shape Up!
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  In this activity (pages 8-9), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.
  