The first day: the mung bean head is basically exposed, and no roots appear.

The next day: the "small mouth" of mung bean is lifted up.

The third day: the root of mung bean appears and the "mouth" opens.

Day 4: Mung beans are obviously tall and spit out small green seedlings.

Day 5: The tender leaves of mung beans open and continue to grow taller.

On the sixth day and the seventh day, the height continued to grow, and there was no big change.