HESS'S LAW AND HEAT OF FORMATION High School Science, Thermochemistry Bulletin Board Letters, High School Science, Thermochemistry Bulletin Board Quote, High School Science, Thermochemistry Phrase, High School Science, Thermochemistry Classroom Decor, High School Science, Thermochemistry Sayings The words in this product read, HESS'S LAW AND HEAT OF FORMATION Size: 8.5 by 11 inches (letter paper) You can print these on colored paper or on white paper for children to color or paint. If you need a smaller size, then 2 or more pages can be printed on a single sheet too. For that please choose to print multiple pages together option in your printer settings. Thank you!