y
YouUseAI
For kids
Apps
Games
Developer
EN
Sink or Float
Guess first, then let the water answer
0
Parents
Which grade is your child in?
2·3
Grades 2–3
The water tank and the first three rounds of the glass — enough to learn to guess before watching
4
Grade 4
All five rooms of the grade 4 science book: water, light, heat and sound
Change the grade any time; each grade keeps its own stars.