Making a waterfall for a project can seem like a tough challenge, however, using some things you can find at your local crafts store, it doesn't have to be. So whether you've got to make a waterfall for school, or leisure, learn how you can make one easily using modelling clay and a little imagination.
Cut the long sides off of your shoebox, so that you just have one long bottom side, and the two square sides on either end. Then bend one of the shorter square sides in the opposite direction. Your result should be a long piece of cardboard, with L-shapes on either side, going in opposite directions.
Take your blue modelling clay and start pressing it onto your cardboard starting at the top. The top end should be the L that points right, so that your modelling clay will eventually cascade over and down and pour out onto the opposing L-shaped end.
Make your modelling clay a thin layer and coat your cardboard from top to bottom, then gently pinch and push it in various areas, to give the shape of flowing water. Allow your clay to dry for a few hours.
Add more clay at the bottom of your waterfall where the L-shape points out. It might be easiest just to put a large lump of clay, a little smaller than your fist, at the bottom of the waterfall, then pinch and push it so that it looks like water. Allow clay to dry for a few hours.
Take white acrylic latex paint and a small paint brush, and paint little white squiggles sparingly running down your water fall. Then paint the bottom part of your waterfall where you've put the larger lump of modelling clay with more white paint to represent the burst at the end of a waterfall. Allow paint to dry for at least an hour.
You can now put your waterfall into a model if you have one set, or leave it standing alone.
To add a more realistic touch to your waterfall, you can add some rocks and stones you find outside to the bottom and on the sides of your modelling clay before it dries. Try gluing crumpled-up blue Saran wrap to various parts of your waterfall to emulate the shine of water. For a glittery waterfall, paint your dry modelling clay with a thin layer of clear craft paint and sprinkle your waterfall with blue glitter.