|
A. on video B. thinking C. ability D. solutions E. based on |
On October 30, 2019, 3M announced the results of its 2019 Young Scientist Challenge. 14-year-old Kara Fan's spray-on bandage（喷雾绑带）beat out several other creative to some of the world's biggest problems.
The contest, which is run by 3M and Discovery Education, is open to students in grades 5-8. Hundreds of kids sent in ideas . In June 2019, 10 finalists were chosen their knowledge and to share their idea clearly.
The finalists were matched with a scientist. Students were given several months to improve their projects with the help and advice of these scientists.
