Salt and vinegar crystals are easy-to-grow non-toxic crystals that you can grow in a rainbow of colors. This crystal growing project is especially good for kids or beginners looking for quick and easy crystals.
This tool is a handy arts project for students to keep at their desks. It is easy to make and effectively illustrates the relationship between minutes and hours. Since students can carry it around with them, it is an excellent tool for reinforcing number