Scientific Method
A tentative answer to a scientific question; an educated guess
What is a hypothesis?
What are the two types of observation?
What are qualitative and quantitative measurement?
The two ways a scientist can do preliminary research before writing a hypothesis
What are academic journals and personal observations?
The two types of variables stated in the hypothesis
What are dependent and independent?
The independent variable is most often found on this axis of a graph.
What is the x axis?
The step of the scientific method during which you test your hypothesis
What is an experiment?
Quantitative measurement differs from qualitative measurement because it does this.
What is measure using numbers?
The three parts of a good hypothesis
What are the subject, variables, and predicted outcome
The responding variable or factor that may or may not change due to manipulation by the experimenter
What is the Dependent Variable?
What are currency, relevance, authority, accuracy, and purpose?
What a scientific question must be
What is testable?
The name for recorded observations
What is data?
State a good hypothesis for this scientific question: Will drinking more milk make my bones stronger?
What is...If I drink more milk, my bones will be stronger?
The manipulated variable or factor that the experimenter intentionally changes
What is the Independent Variable?
The arrow in a scientific equation should be read as this word.
What is "yield?"
During this step of the scientific method, researchers sometimes use their data to create graphs and charts.
What is analyze the results?
State a good hypothesis for this question. I wonder if the time I go to sleep has an effect on how tired I feel.
What is... If I go to sleep earlier, then I will be less tired?
Something to measure the experimental groups against; it is not changed throughout the experiment, and is included to eliminate the effects caused by confounding conditions
What is the Control Variable?
The Goodland area of Kansas experiences tornadoes in the following amounts each year: 2, 6, 3, 8, 4, 7, 3, and 5. On the news, a reporter said that the area experienced about 4.5 hurricanes per year over the last eight years. What mode of central tendency (mean, median, or mode) did they use to describe the data?
What is median?
What scientists do after the finish writing the conclusion section
What is write a new hypothesis?
270 m, 13 ft, and 5 sec
What are examples of Quantitative Measurement.
Read the following experiment and state a good hypothesis. I am doing a test to see if there is a connection between how long you run and how fast your heart beats. I will be performing an experiment where a person will run for a 1 minute and I will check their heartbeat. Then they will run for 2 minutes and I will check their heart rate. I will do this up to 6 minutes and see if there is a connection. What do you think my hypothesis should be?
What is...If I increase the amount of time I run, then my heartbeat will increase?
Find the independent, dependent, and control variables in the following experiment: Anthocyanins are plant pigments sensitive to changes in pH, and they are found in red cabbage leaves. To test the effect of acid on anthocyanin pigment, a student prepared four identical test tubes each containing identical quantities of red cabbage and distilled water. He then added concentrated HCl solution to three test tubes until the pH was 5, 3, and 1, respectively, and measured the color of the cabbage in all four test tubes using a colorimeter.
What is...
IV: pH/acid concentration
DV: cabbage color
CV: water test tube
Thinking about the hypothesis, "If soil temperatures rise, then plant growth will increase," these are some constants considered by the experimenters
What is... sunlight, water, type of plant, etc.?