Get a foam ball cut 1/4 of the ball of then paint the core ,mantle,and crust make sure you use bright colors like orange,red,yellow
Get a foam ball cut it in half and then paint
Yes first you need is red,yellow,green,white,orange,brown,and blue clay.
Now the green and blue clay is for making the Earth but don't make a just a model of Earth make it in half. So you can put the layers, first get the brown clay and put it inside both halves of the Earth. Then you do the same thing with the mantle but you use orange clay. Then do the same thing with the outer core but use the yellow clay. Then finally do the same thing with the inner core but use the red clay. Also the white clay is just for making the clouds. :)
Now the green and blue clay is for making the Earth but don't make a just a model of Earth make it in half. So you can put the layers, first get the brown clay and put it inside both halves of the Earth. Then you do the same thing with the mantle but you use orange clay. Then do the same thing with the outer core but use the yellow clay. Then finally do the same thing with the inner core but use the red clay. Also the white clay is just for making the clouds. :)
There are many steps you have to first get a ball and paint it red then you have to get clay and you have to do the inner core and the outer core you also have to do the crust and the mantle. Use the clay that you have. That is what you have to do.
Yes you can! If you work hard and focus you can.