In Part 1 of our tunnel project we built our tunnel out of scraps of Styrofoam and cardboard that was going to be thrown away. Keeping with our re-cycling and re-using theme, Part 2 will also ask that you look around the house for most of the things we need to finish up your tunnel. At the end of Part 1 your tunnel should look something like Photo 1. Remember you were using various widths of Styrofoam so the distances between your pieces of cardboard might be different from the one we built. That's okay, because all railroad tunnels are different anyway. To finish our project we will need some newspapers, some White Glue, an old empty spray bottle, a drop of dish soap, a measuring cup and five or six sheets of green tissue paper. Ask for help and work outside or on an old towel or blanket that can get washed afterwards, we are going to get messy!
First measure 8 ounces of white glue into your spray bottle, then add 8 ounces of water, and just put two or three drops of dishwashing soap, not too much, just a couple of drops. Shake your spray bottle very good so everything gets mixed evenly. Begin tearing your newspaper into half pages and begin to crumple and fit them in between all of your cardboard. Really fill up all the spaces but don't stuff it in too hard, it should look like Photos 2 and 3:
Now the messy part! Spray your newspaper with your glue and water mixture until the paper is wet, then let it soak in for one or two minutes. Using your hands slowly push the newspaper together so they all touch each other and then add your first sheet of tissue paper. (Photo 4) Slowly add all of your sheets of tissue paper spraying and soaking each layer. If your paper tears, just make a patch with any extra tissue paper you have. Mountains and hills aren't smooth so if your paper has wrinkles it will look better. If you can't find green tissue paper don't worry. Ask an adult to buy a very cheap roll of plain white paper towels and use them just like the tissue paper. You will need to make two batches of your glue and water mix because paper towels really soak up the mixture fast, but when your done you'll get the extra fun of painting your tunnel with poster paints.
When you're all done your tunnel should look something like Photo 5. The glue and water mix will continue to drip for a few hours as the paper dries. Keep it on some extra newspapers or let it dry outside in the sun. You can either paint the tunnel portals yourself or buy some at the local train store and glue them on. It's your tunnel, paint it with poster paints anyway you like.