Science Project: What Floats and What Sinks?
Physics and Astronomy- Grade:
- PreK
- Teacher:
- Kayleigh Paul
During water play in our classroom, the children began noticing that some objects stayed on top of the water while others sank to the bottom. They asked questions like, “Why does the rock go down?” and “Why does the leaf stay up?” Their curiosity grew as they started testing classroom items on their own and making predictions before dropping them in. Because of their natural interest and excitement, we decided to turn their questions into a science investigation. For our project, we are exploring what makes objects sink or float by observing, predicting, testing, and recording our results. This project allows students to practice scientific thinking skills such as asking questions, making hypotheses, conducting experiments, and discussing patterns they notice.

Your sink or float project was very well researched. Your included data and photos showed that you all were engaged in the project. Great job.
What a fun experiment! Way to use your tools. That’s what real scientists do!
Well done, young scientists and engineers! You tested objects the same way and observed carefully, just like scientists and engineers DO ! Stay curious.