contestada

Choose 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 s
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.