The Scientific method and graphing

Master the scientific method! Practice vocabulary, experiment steps, variables, and graph analysis.

Match the vocabulary words to the correct definitions. Hypothesis A testable prediction Control Group that receives the "normal" conditions 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 Which of the following puts the steps of a scientific experiment in the correct order? 2,3,1,4 2,1,4,3 2,1,3,4 4,2,3,1 What is the purpose of an experiment? To communicate data To test a hypothesis To prove a scientific law None of these 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 manipulated variable for the Global Warming Experiment? 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 What is a constant in order for the Global Warming Experiment to be valid? Air Temperature Location Global Warming Time of Day According to the data shown in the graph, the hypothesis is only correct for latitudes- up to 40 degrees from the equator from the poles to 40 degrees from the equator between 20 degrees and 60 degrees from the equator farthest from the equator There is a greater average humidity in the north south In the late 1920s, Edwin Hubble and Milton Humason determined the distance to a number of galaxies and the velocity of those galaxies relative to the Earth. The graph shows the early results that were obtained. What approximate ratio did the scientists calculate between velocity and distance based on these early findings? 300 kilometers per second per one million light years 600 kilometers per second per one million light years 450 kilometers per second per one million light years 150 kilometers per second per one million light years If we observe that these galaxy have red shift, what conclusion can be made based on the data in the graph? Galaxies closer to Earth are moving closer faster. Galaxies closer to Earth are moving away faster. Galaxies farther away from Earth are moving away faster. Galaxies farther away from Earth are moving closer faster. What is the independent variable for this graph? Velocity Distance Galaxy None of These How much limestone was worn away between Day 1 and Day 2? 2.5 grams 2.8 grams 0.2 gram 2.3 grams According to this graph what type of rock or mineral is most resistant to erosion? Igneous Metamorhpic Sedimentary Mineral According to this graph, which rock or mineral erodes the fastest? Sandstone Limestone Granite Quartz