Science is an activity that fosters all areas of child development, but many of us are limited in space in the classroom or having to share the space, which limits what can be left in our classrooms every day.
However, we know that this is important! Science is not infinite storage concepts, technologies, discoveries, etc. Science is for preschoolers, learning and understanding the world around them significantly.
Scientific knowledge is enormous and could not all the time teaching a kindergarten child graduates from high school.