Sciencefusion Inquiry Flipchart Grade 3 Author:HOUGHTON MIFFLIN HARCOURT This inquiry flipchart accompanies the Science Fusion series by Houghton Mifflin Harcourt for Grade 3. The book is filled with lessons and hands-on experiences that accompany the lessons in the interactive Student Edition. The book has a thick cardboard backing that can be used to stand the book up like an easel for teaching purposes.