Unit 1: Scientific method and graphing

Review of Scientific Method Match the vocabulary words to the correct definitions. Hypothesis A testable prediction Independent/ Manipulated Variable The variable that the scientist changes Dependent Variable The variable that is measured Constant A condition during the experiment that stays the same for all groups being tested Observation Using your five senses to determine information Inference Drawing a conclusion using the evidence at hand Global Warming Experiment Iker is concerned about global warming. He believes that much of the problem is caused by the intense heat arising from surfaces such as streets and the roofs of buildings. Iker convinces the principal of his school to run an experiment. With the help of other students, Iker raises money for a rooftop garden to be put in on one half of his school building. For one semester, Iker keeps track of the air temperature on the half of the building with the rooftop garden and the half of the building without the garden. He finds that the average temperature near the rooftop garden is 73°F. The average temperature away from the garden is 84°F. What is the Independent Variable for the Global Warming Experiment? Air Temperature Part of roof with garden and part of roof without garden Global Warming Time of Day What is a constant in order for the Global Warming Experiment to be valid? Air Temperature Location Global Warming Time of Day What is the dependent variable for the Global Warming Experiment? Air Temperature Location Global Warming Time of Day A student constructs several terrariums like the one shown below. Each terrarium is exposed to a different amount of sunlight each day. In order to determine the ideal amount of sunlight, which of the following variables must be held constant? Type of Plant Growth Rate of Plants Wavelengths of sunlight Amount of sunlight received What is the independent variable in the experiment above? Growth rate of plants Amount of sunlight each terrarium is exposed to type of soil What is the dependent variable in this experiment? Growth rate of plants Amount of sunlight each terrarium is exposed to type of soil What is the independent variable in this data table (REMEMBER THIS IS NOT A GRAPH) Boys and Girls Favorite place to eat lunch