<p> Practice Identifying Parts of the Scientific Method</p><p>Experimental Scenario #1: Problem/Observation: Ants digging tunnels in different light conditions</p><p>Question: Does tunnel digging activity depend on light conditions?</p><p>Hypothesis: Ants will dig more tunnels during the daytime.</p><p>Experiment:</p><p>Independent variable: Amount of light ants were exposed to</p><p>Dependent variable: Level of tunnel digging activity</p><p>Controls: Type of ants, number of ants, amount of food, and temperature</p><p>Control Group: There was no control in this experiment (flaw?)</p><p>Experimental groups: 5 colonies in normal room light and 5 colonies covered in construction paper</p><p>Construct a line graph, shows tunnel length over the course of the study. Graph should have two lines. X axis should be # of days and Y axis should be length of tunnels for light group and dark group. Label each axis and include units, graph should have a title.</p><p>Experimental Scenario #2: Problem/Observation: effect of radiation on seeds</p><p>Question: Will radiation impact the ability of a seed to germinate?</p><p>Hypothesis: Exposure to microwave radiation will impact the ability of a seed to germinate.</p><p>Experiment:</p><p>Independent variable: Amount of radiation</p><p>Dependent variable: whether or not seeds germinate after exposure to radiation Controls: same flats, water, temperature, same type of seeds?</p><p>Control Group: Seeds receiving no radiation.</p><p>Experimental groups: seeds that received 3 seconds and 6 seconds of radiation.</p><p>Construct a bar graph, radiation on X axis, number of seeds germinated on Y axis. Be sure to label axis and include units. Graph should have a title.</p><p>Experimental Scenario #3: Problem/Observation: effect of aged-grass compost on plant growth</p><p>Question: Will compost make plants grow faster?</p><p>Hypothesis: Aged-grass compost will increase the growth rate of bean plants.</p><p>Experiment:</p><p>Independent variable: Age of compost</p><p>Dependent variable: Plant height (growth)</p><p>Controls: water and light</p><p>Control Group: flat receiving no compost.</p><p>Experimental groups: flats that received 3 month and 6 month old compost.</p><p>Construct a bar graph using the average plant height for the 3 conditions or a scatter plot, showing the distribution of heights within each compost group. Be sure to label each axis and include units. Graphs should also have a title.</p>