Measure Scientific Method Variables Graphing Heart rate Lab Daphnia Lab $200 $200 $200 $200 $200 $200 $400 $400 $400 $400 $400 $400 $600 $600 $600 $600 $600 $600 $800 $800 $800 $800 $800 $800 $1000 $1000 $1000 $1000 $1000 $1000 $200 meter The metric unit used to measure length $400 gram The metric unit used to measure weight. $600 liter The metric unit used to measure volume $800 1 ml How many milliliters are in 1cm3 $1000 400,000,000 M&M’s If the Mississippi river is nearly 4,000 km long and an M&M is 1cm long how many M&M’s would it take to measure the Mississippi river? $200 Make an observation or ask a question What is the first step in the scientific method? $400 True True or False: The scientific method is a cycle rather than a list of steps. $600 What is a hypothesis? A testable explanation or predication $800 Quantitative and qualitative Two types of data you can gather. $1000 Your research has been reviewed and accepted by other scientists. What does it mean to be “peer reviewed”? $200 Manipulated variable The independent variable can also be called what? $400 Responding variable The dependent variable can also be called what? $600 Provide baseline for data, comparison What is the purpose of the control group? $800 The group being exposed to the experiment What is the experimental group in an experiment? $1000 Things that remain the same in the lab What are controlled variables? (constants) $200 To describe what the graph is representing. What is the purpose of the title for a graph? $400 X axis What axis does the manipulated variable go on? $600 Y axis What axis does the dependent variable go on? $800 The effect of different activities on heart rate in humans The effect of different activities on heart rate in humans The effect of different activities on heart rate in humans 100 90 80 22% 70 24% 60 Heart Rate Heart Rate 30% 50 40 30 24% 20 10 0 resting standing walking jogging resting standing walking jogging Activity 100 90 80 70 60 50 40 30 20 10 0 resting standing walking jogging Activity What type of graph best represents the data? $1000 A visual representation of the data, shows trends in the data What is the purpose of a graph? $200 Resting heart rate In the Heart rate lab what was the control group? $400 activity What was the manipulated variable in the heart rate lab. $600 Time, activity, trials, location, how you check your heart rate, etc. Give 3 controlled variables from the heart rate lab $800 Heart rate after activity What was the dependent variable in the heart rate lab? $1000 “what are the effects of standing, jogging and holding your breath on your heart rate?” What would be an example of a “good” testable question for the heart rate lab? $200 Daphnia Heart Rate Before being exposed to substances In the Daphnia Lab what was the control group? $400 The substance being exposed to the daphnia In the daphnia lab, what was the independent variable? $600 Heart rate after exposure In the daphnia lab what was the responding variable? $800 Any data with a number Give an example of quantitative data you could have gathered from the daphnia lab. $1000 Any observation that involves the senses (no numbers) Give an example of qualitative data you could have gathered from the daphnia lab.