Scratch art has been around for a long time and is a favorite of elementary art teachers. You can make scratch art at home with some brightly colored crayons and black paint. The process is easy and fun and is a great way to nurture your children's imaginations!
Use as many variations of the rainbow colors as you like. A large box of 64 crayons has several different shades available.
Color your card stock starting with a line of reds across the top. Continue down with orange, yellow, green, blue and purple. if you still have paper left at the end, start over again with red, etc. Be sure that ALL areas of the paper are covered, do not leave any white spots.
Paint the entire surface with black paint. You should not be able to see anything through the paint. If you can, repeat for another coat. (I used acrylic paint and only needed one coat; however tempura or poster paint my need two.) Allow the paint to dry for at least two hours.
Use a skewer to draw onto the black painted surface. This will scratch off the paint revealing the colors below. First draw out a simple tree shape. next add swirls (or leaves or circles, whatever you prefer) to complete the tree.