This is a mixture of Physical, Earth, and Life Science. It is a great way to continually review taught concepts or to even briefly touch on what is to come. It is classroom tested and works very well with the struggling science student. This resource has been used successfully with a small group of struggling 5th graders. They appreciated the different worksheet approach and the visuals. It is really fun to use with the students and it is fast paced. As they work through all the reviews they have a great final package to study from.