(7) Unit Assessment: Scientific Method & Lab Safety

Fill in correct answer to each blank. Click the blank to see your options. Science is a way of learning about the natural world. Science is also the knowledge gained through that process.Scientific Method of Inquiry1. Posing a question: Scientific inquiry often begins with a problem or a question, about an observation.2. Research: Scientists search out for more information on their question. They want to know what is already known about the topic.3. Developing a Hypothesis: In science, a hypothesis must be testable. This means that scientists must be able to carry out investigations and gather evidence that will either support or disprove the hypothesis. 4. Designing an Experiment: A controlled experiment is a test of a hypothesis. In a controlled experiment, a scientist changes only one particular variable to see how it affects the outcome of the experiment. In an experiment, the variable that a scientist changes is called the manipulated (or independent) variable. The variable that changes because of the manipulated variable is the responding (or dependent) variable. 5. Collecting Data: Data are the facts, figures, and other evidence gathered through observations. 6. Analyzing Data: A data table provides an organized way to collect and record observations. One useful tool that can help you interpret data is a graph. 7. Drawing Conclusions: A conclusion is a statement about what you have learned from an experiment. 8. Communicating the Results: Communicating is the sharing of ideas and experiment results with others through writing and speaking. A controlled experiment tests how many variables at one time? one three four If you were testing how well different dish soap cleaned grease, the independent (manipulated) variable would be the Dishes water dish soap While performing an experiment, it is mostimportant to change the control setup test many different variables at the same time record observations and measurements Data such as "10 drops" is referred to as _ robust data qualitative data quantitative data Data that is recorded through observations (sight, smell, feel, etc.) or interviews is called _. quantitative data qualitative data During an experiment, if you purposely change the temperature of the water to test a hypothesis, the temperature is now the _. dependent variable independent variable data You can use a _ to record and organize observations. data table inference experiment Data that is expressed with numbers refers to _. quantitative data qualitative data When you decide whether your hypothesis is supported by your results, you are _. making observations drawing conclusions forming a hypothesis Organize the lab rules into DO's or DON'T's. Lab Safety Do's use appropriate hand and eye protection report accidents immediately keep the lab neat and clean no food or drink dispose chemicals appropriately make sure lab items are identifiable Lab Safety Dont's stand in the way of exits and eye stations wear loose clothing break and damage equipment leave long hair down take lab equipment and specimen with you wear sandals The most important lab safety rule is _. always follow your teacher's instructions and lab directions carefully always wear eye goggles always conduct experiments before instructions