Neme Reallitative and Disantitative Characteristics Hour Date Scientific Method Test Review Worksheet __ __ disappointed Independent Variables. Depondent Variables Constants, and Hypotheses between __ 4. How is a constant different from an independent variable? __ 5. An independent variable is what you __ and a dependent variable Is what you __ and adependent variable is what you B. What do you need to remember about the format of a hypothesis? __ 7. Use the scientific question below to identify the IV and DV and write a hypothesis. Scientific Question: What elfect does attendance have on students' grades in this class? Dependent Variable: __ Independent Varioble __ __ Directions: Use the paragraph below to answer questions 8-IL I have two pupples from the same litter.The pupples are both male and the same she and weight. I feed one puppy two cups of dry kibble each day, and I feed the other puppy two cups of canned food each day. Both pupples get four cups of water every day. I weigh the pupples once a week to check the speed of their weight galn. 8. What is the dependent variable in this experiment? __ 9. What is the Independent variable in this experiment? __ 10. __ II. List at least five constants listed in this experiment. __ -Thorsen Created and copyrighted by Eli Thorsen in

4. A constant remains unchanged; an independent variable is changed. ### 5. Change; measure ### 6. "If...then..." format ### 7. DV: Students' grades; IV: Attendance ### 8. Speed of weight gain ### 9. Type of food ### 10. Male, same litter, same initial size/weight, water amount, weighing frequency Explanation 1. Define Constant vs. Independent Variable A constant remains unchanged throughout the experiment, while an independent variable is deliberately changed to observe its effect. 2. Identify Independent and Dependent Variables An independent variable is what you change, and a dependent variable is what you measure or observe in response. 3. Format of a Hypothesis A hypothesis should be formatted as an "If...then..." statement, predicting how the independent variable affects the dependent variable. 4. Identify IV and DV from Scientific Question Dependent Variable: Students' grades Independent Variable: Attendance 5. Identify Dependent Variable in Experiment The dependent variable is the speed of weight gain of the puppies. 6. Identify Independent Variable in Experiment The independent variable is the type of food (dry kibble vs. canned food). 7. List Constants in Experiment Five constants are: 1. Both puppies are male. 2. Both puppies are from the same litter. 3. Both puppies have the same size and weight initially. 4. Both puppies receive four cups of water daily. 5. Both puppies are weighed once a week.