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    Girl smiling in sack at campsite — Stock Photo
    Girl smiling in sack at campsite
    Portrait playful girl using gyroscope in science center — Stock Photo
    Portrait playful girl using gyroscope in science center
    Students and teacher examining pine cone in forest — Stock Photo
    Students and teacher examining pine cone in forest
    Girls smiling by teepee at campsite — Stock Photo
    Girls smiling by teepee at campsite
    Kids playing with large dice in science center — Stock Photo
    Kids playing with large dice in science center
    Teacher and students using pipette and beakers at interactive exhibit in science center — Stock Photo
    Teacher and students using pipette and beakers at interactive exhibit in science center
    Teachers helping students walk on stilts outdoors — Stock Photo
    Teachers helping students walk on stilts outdoors
    Students and teacher smiling in forest — Stock Photo
    Students and teacher smiling in forest
    Curious boy using pipette in beaker at interactive exhibit in science center — Stock Photo
    Curious boy using pipette in beaker at interactive exhibit in science center
    Students and teacher examining plants outdoors — Stock Photo
    Students and teacher examining plants outdoors
    Girl playing with foam bricks at construction exhibit in science center — Stock Photo
    Girl playing with foam bricks at construction exhibit in science center
    Girls wrapped in blanket at campsite — Stock Photo
    Girls wrapped in blanket at campsite
    Students and teachers cheering in forest — Stock Photo
    Students and teachers cheering in forest
    Students and teacher sitting on log in forest — Stock Photo
    Students and teacher sitting on log in forest
    Students and teachers walking outdoors — Stock Photo
    Students and teachers walking outdoors
    Teacher and student playing in forest — Stock Photo
    Teacher and student playing in forest
    Kids playing at interactive exhibit in science center — Stock Photo
    Kids playing at interactive exhibit in science center
    Students and teacher walking on dirt path — Stock Photo
    Students and teacher walking on dirt path
    Students and teacher walking in forest — Stock Photo
    Students and teacher walking in forest
    Students and teacher walking in field — Stock Photo
    Students and teacher walking in field
    Students and teachers walking in forest — Stock Photo
    Students and teachers walking in forest
    Kids playing with toy bricks at interactive construction exhibit in science center — Stock Photo
    Kids playing with toy bricks at interactive construction exhibit in science center
    Girl playing with interactive exhibit in science center — Stock Photo
    Girl playing with interactive exhibit in science center
    Students and teacher examining leaf outdoors — Stock Photo
    Students and teacher examining leaf outdoors
    Teacher showing toy airplane to kids in science center — Stock Photo
    Teacher showing toy airplane to kids in science center
    Teachers and students smiling at campsite — Stock Photo
    Teachers and students smiling at campsite
    Curious kids watching multicolor foam in beakers — Stock Photo
    Curious kids watching multicolor foam in beakers
    Curious boy looking at face in science center — Stock Photo
    Curious boy looking at face in science center
    Girl cheering in forest and smiling to camera — Stock Photo
    Girl cheering in forest and smiling to camera
    Teachers and students walking in forest — Stock Photo
    Teachers and students walking in forest
    Portrait smiling boy stacking foam bricks at interactive construction exhibit in science center — Stock Photo
    Portrait smiling boy stacking foam bricks at interactive construction exhibit in science center
    Girls using butterfly nets in field — Stock Photo
    Girls using butterfly nets in field
    Teacher and schoolboy stacking bricks at interactive construction exhibit in science center — Stock Photo
    Teacher and schoolboy stacking bricks at interactive construction exhibit in science center
    Teacher and students playing at interactive construction exhibit in science center — Stock Photo
    Teacher and students playing at interactive construction exhibit in science center
    Teacher and students using touch screen computers — Stock Photo
    Teacher and students using touch screen computers
    Girl holding arms out in forest — Stock Photo
    Girl holding arms out in forest
    Boy sitting on tree roots in forest — Stock Photo
    Boy sitting on tree roots in forest
    Students and teachers smiling in forest — Stock Photo
    Students and teachers smiling in forest
    Curious kids at interactive earth exhibit in science center — Stock Photo
    Curious kids at interactive earth exhibit in science center
    View from above kids playing at interactive exhibit in science center — Stock Photo
    View from above kids playing at interactive exhibit in science center
    Teacher and students looking at exhibit in science center — Stock Photo
    Teacher and students looking at exhibit in science center
    Portrait cute boy playing with foam bricks at interactive construction exhibit in science center — Stock Photo
    Portrait cute boy playing with foam bricks at interactive construction exhibit in science center
    Portrait smiling, confident girl watching exhibit in science center — Stock Photo
    Portrait smiling, confident girl watching exhibit in science center
    Rainboots lined up outside tent at campsite — Stock Photo
    Rainboots lined up outside tent at campsite
    Teacher and students playing at interactive exhibit in science center — Stock Photo
    Teacher and students playing at interactive exhibit in science center
    Teacher and schoolgirl using computer in science center — Stock Photo
    Teacher and schoolgirl using computer in science center
    Students and teacher examining grass in forest — Stock Photo
    Students and teacher examining grass in forest
    Kids playing at interactive construction exhibit in science center — Stock Photo
    Kids playing at interactive construction exhibit in science center
    Children playing with pine cones in forest — Stock Photo
    Children playing with pine cones in forest
    Children smiling in teepee at campsite — Stock Photo
    Children smiling in teepee at campsite
    Silly girl making a face at rock exhibit display case in science center — Stock Photo
    Silly girl making a face at rock exhibit display case in science center
    Students and teachers smiling in forest — Stock Photo
    Students and teachers smiling in forest
    Children running in forest during daytime — Stock Photo
    Children running in forest during daytime
    Teacher and curious students at interactive earth exhibit in science center — Stock Photo
    Teacher and curious students at interactive earth exhibit in science center
    Curious kids using computer in science center — Stock Photo
    Curious kids using computer in science center
    Boys wrapped in blanket at campsite — Stock Photo
    Boys wrapped in blanket at campsite
    Students and teacher using binoculars in forest — Stock Photo
    Students and teacher using binoculars in forest
    Country Road, Canada — Stock Photo
    Country Road, Canada
    Students and teacher playing in forest — Stock Photo
    Students and teacher playing in forest
    Orange fields and marsh — Stock Photo
    Orange fields and marsh