dynamics
Working model for what, exactly?
Don't make it
Make an orbit of elements
how to make a science models for 9th class
i wont tell the answer get lost
Gyroscope will make a good working model .
By hand
yes,i want simple but good science project on reflection of sound can you help me
There are several ways one can make a working model of an earthquake. You can use an empty 2 liter bottle, clay, baking soda, and dish detergent to make a working earthquake.
There are many forms for models someone could make for their science class. Depending on the type of science class it is and what parts have been taught already would depend on a appropriate model.
manhattan
water conservation