Fourth-grader Greg Goins, left, tells Jill Binau about his idea of smart noise-canceling headphones during Clinton Massie’s-Invention Convention on Wednesday.

Eighth-grader Ella Mefford, far left, tells a few Clinton-Massie students about her tree-less paper towels project during the school’s third annual Invention Convention on Wednesday.

Clinton-Massie Elementary School students showed off their creative scientific crafts during the third annual Invention Convention on Wednesday.

Clinton-Massie Elementary students check out fifth-grader Randy Mefford’s quick click seatbelt idea for infant car seats on Wednesday during the school’s Invention Convention.

Fourth-grader Greg Goins, left, tells Jill Binau about his idea of smart noise-canceling headphones during Clinton Massie’s-Invention Convention on Wednesday.

https://www.wnewsj.com/wp-content/uploads/sites/22/2019/04/web1_DSC_0246.jpgFourth-grader Greg Goins, left, tells Jill Binau about his idea of smart noise-canceling headphones during Clinton Massie’s-Invention Convention on Wednesday. John Hamilton | News Journal

Eighth-grader Ella Mefford, far left, tells a few Clinton-Massie students about her tree-less paper towels project during the school’s third annual Invention Convention on Wednesday.

https://www.wnewsj.com/wp-content/uploads/sites/22/2019/04/web1_DSC_0251.jpgEighth-grader Ella Mefford, far left, tells a few Clinton-Massie students about her tree-less paper towels project during the school’s third annual Invention Convention on Wednesday. John Hamilton | News Journal

Clinton-Massie Elementary School students showed off their creative scientific crafts during the third annual Invention Convention on Wednesday.

https://www.wnewsj.com/wp-content/uploads/sites/22/2019/04/web1_DSC_0255.jpgClinton-Massie Elementary School students showed off their creative scientific crafts during the third annual Invention Convention on Wednesday. John Hamilton | News Journal

Clinton-Massie Elementary students check out fifth-grader Randy Mefford’s quick click seatbelt idea for infant car seats on Wednesday during the school’s Invention Convention.

https://www.wnewsj.com/wp-content/uploads/sites/22/2019/04/web1_DSC_0260.jpgClinton-Massie Elementary students check out fifth-grader Randy Mefford’s quick click seatbelt idea for infant car seats on Wednesday during the school’s Invention Convention. John Hamilton | News Journal