Cereal boxes, popsicle sticks, matchsticks, cardboard, paper. Be creative!
Not unless you build the model.
You can get brownish clay, soilders that are red and blue, guns but no machine guns,cannons,and some grass.
There are many ways in which you could build a simple working model of an ear for a science fair. You could build this out of paper mache for example.
You would not be able to obtain the fissile material necessary to build a working model of a nuclear power plant. You could build a model, for sure, but it would not be a working model.
This is not really a question. If you want to build an animated version of an atom then there are plenty of websites out there. If you want to build a physical model you could use anything from Styrofoam balls to jelly beans.
you could use wood, Styrofoam, cardboard, or paper.
Model Tenements - Apex
you should make it out of paper, clay or just fail the project
In early 1908 it was taking 12.5 hours to build the Model T and it sold for around $850. By the late 1920s they could build on every 1.5 hours and it sold for $250.
Model tenements
How do you build a cardboard Eiffel Tower?
200 USD