This is the 4th volume of The Inquisitive Pioneer series of science and math activities which use primarily basic materials but all involve measurement and calculation to analyze the data. Like all the others in the series there is a paper template slide rule and slide rule use instructions for encouraging numeracy skills. This book acts as the compliment to book one by having a cross-section of activities from the web site: www.cosmicquestthinker.com from which all the books derive. This book has topic areas of conservation of momentum, conservation of mass, Archimedes Principle labs, and many more.