3rd graders launch weather balloon from Minneapolis park

Name: 3rd graders launch weather balloon from Minneapolis park
Uploaded: 2019-02-22T03:00:00+00:00
Duration: 2 min 21 s
Description: For months, a group of third graders in Minneapolis has been working on an ambitious adventure.

For months, a group of third graders in Minneapolis has been working on an ambitious adventure.

Posted February 21, 2019 9:34pm CST