This resource is a tutorial from the Website CPALMS on Class Hamster Science (Part 1 of 3)- Scientific Method, Observational Studies, Controlled Experiments: Explore methods of investigation, hypothesize, interpret data, determine appropriate conclusions, and make predictions. Through this resource students will learn about: Scientific Investigations, Scientific Problem, Background Information, Observations, Variables, Constants, Controlled Variables, Hypothesis, Data, Predictions, Inferences,