TOPS Learning Systems - Science with Simple Things. For Grades 4-12. This book blends science, math, language and art into a grand learning Plant popcorn and pinto beans; improvise lab equipment; keep a journal; learn impressive vocabulary while investigating growth patterns, photosynthesis, respiration and much more. Young adults and kids both love this program, responding with success at individual skill levels.
This actually works! You can go as in depth with analysis and paperwork as you like, or you can do this on a more basic level. Useful with a variety of ages.