The toolbox held plenty of things, including tweezers and some testing devices.
What Wang Tao carried in his backpack was only part of their equipment. They had also brought several microscopes and various reagents.
But those had all been left in the village.
Once they returned, they would still need to run experiments on the fruit, soil, and other samples they had collected.
It was a major undertaking, and some experiments would take quite a while.
The shortest would take a day, and the longest a week.
Bai Chen had also picked up some things he thought would be useful along the way, though they were rather different from what the other students had collected.
To carry out their experiments, the students each took an alcohol-sterilized bottle from their backpacks, walked over to the spring, and filled it just under halfway with water.
They had split into five groups for their research.
Bai Chen's group consisted of three girls and two boys.
Lin Jingchen was not a student in their major, so he remained neutral and watched from the sidelines.
But the members of the other groups all counted their senior, Lin Jingchen, as a member of Group Five.
Everyone knew how skilled he was in agriculture, and he was sticking so close to Bai Chen. They could hardly help reading into it, or keeping their guard up.
With both Bai Chen and their senior Lin in Group Five this time, they felt tremendous pressure.
Bai Chen was responsible for collecting the water. He took several samples at the spring's source and at a spot ten meters away from it.
While collecting the last sample, Bai Chen failed to notice the moss on the rock. He lost his footing and was about to topple into the spring below.
He instinctively