My first grader was given the assignment of making a desert diorama. It was one of several land form dioramas they could choose from. This Instructable documents the process using things we had lying around the house.
Sky Blue Spray Paint
Desert Camoflage Spray Paint
Red Model Paint
Brown Model Paint
Black Model Paint
Model Paint Thinner
1/2" Foam Sheet Insulation (About 4 square feet worth)
Flathead Screw Driver
Green Scrub Pad
Model Paint Brush
Hot Glue Gun and Glue Sticks
Spare Cardboard Box
Train Model Tree Material
Step 1: Cut shoe box.
Cut the front of the shoe box and fold the flaps back into the box. This opens the front of the box for better viewing.
Next, use a hot glue gun or plain old Elmers glue and some clamps to hold the flaps tight during drying. Do this for both sides.
Step 2: The inner lining.
Cut some pieces of cardboard to line the inner walls of the shoe box. This gives it a nice smooth even appearance. Again, glue these liners and clamp til dry. We used two pieces to make it the whole way around the inner sides.
Step 3: Line the bottom of the box.
Cut a half inch think piece of insulation to fit the interior of the box. Glue and press to attach firmly.
Step 4: Assemble rock formations.
Glue insulation scraps together in a stacked way. Allow to dry over night. When the glue has dried, trim the formation with a box cutter or other blade. I basically try to trim all of the right angles and overlaps.