Choose a topic from the list below.

plant or animal cell
DNA structure
solar system
layers of the earth
volcano
atomic structure
digestive system

Research the topic enough to understand the basic concepts. Make a model using materials of your choosing, or design it using a graphic program such as Word, Power Point, Publisher, or any other that you are familiar with. Be sure your model is neat, well designed, accurate, detailed, and labeled. Write a 150 word explanation of your model. Include what your model represents, why it is difficult to study in real life, and what scientists have learned from the model.