My studies are based on finding out what impact science has on the children. I presented a simple experiment with oranges. What is it the kids reflect on during a science activity? With the help of video recordings (I -pad) and phenomenography as a starting point, I get the verbal and non-verbal expression, which is important in my research. Collected data were transcribed and divided into different categories. Children are certainly aware, committed and focused. The children became familiar with the scientific words float and sink. Children should have the opportunity to explore, compile, test, experiment, and this is also included in the curriculum (Lpfö 98, rev 2010). Based on my understanding, the children have great fun when they are doing experiments and testing, and that is what is most important. They are learning at the same time lots of new words, new concepts and gain an understanding of why things happen.