Hypothesis/Prediction
The 3rd step of the scientific method.
What is forming a hypothesis?
This is the part of the experiment the experimenter changes.
What is an independent variable?
The type of data you are collecting when recording temperature change. (Hint you are collecting numeral data)
What is quantitative data?
The best type of graph to show changes over time.
What is a line graph?
A way to explore the natural world.
What is the scientific method?
An If/Then statement
What is a prediction?
The variable that never changes.
What are constants?
Things in your experiment that you can change or measure.
What are variables?
The graph best used to show comparisons between data using bars of different heights
What is a bar graph?
In a conclusion you ask yourself this question.
Is my hypothesis correct?
Description of something you can see, smell, touch, taste & hear
What is observation?
This is the name given to the group that is being tested .
What is the experimental group?
The name given to the group used to compare with your experimental group.
What is the control group?
The best type of graph to show percentages.
What is a pie graph?
List the steps of the scientific method.
What is
1. Ask a question (or address a problem)
2. Research
3. Form a hypothesis
4. Conduct an experiment
5. Analyze data
6. Make a conclusion
This should always be testable.
What is a hypothesis?
You are testing for bio molecules in a saltine. You put two drops of Iodine on the cracker. You notice and record that the iodine changed color. Name the type of data you collected.
What is qualitative data?
This is the experimental group in this experiment...
I want to design an experiment to see if drinking coffee makes students score higher on test
What is different amounts of coffee?
Remember, it is what we are testing in an experiment.
Name the 4 parts of a Graph
Title
Independent Variable: graphed on x-axis
Dependent Variable: graphed on y-axis
Scale
Characteristics of a great experimental design
Tests one variable at a time
Data is organized
Measurable results
Reproducible
Follows the scientific method
Homer suddenly notices that the walls of his shower are covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer decides to test this out by spraying half of the shower with coconut juice every day. He sprays the other half of the shower with water. Name the hypothesis.
You test how wing shape affects the distance a plane flies. Name the dependent variable.
What is the distance the plane goes?
You test how temperatures affect the growth of mold.
Temp. A = 50 degrees Temp B = 60 degrees and Temp. C = 70 degrees.
In this investigation, temperature is which variable?
What is the independent variable?
Name the best type of graph to use in this situation.
You decide to test the height of plant growth after 100 days. You used 4 different plant species in this experiment.
What is a bar graph?
This variable goes on the x-axis. This variable goes on the y-axis
Does the dependent variable go on the y-axis?
Does the independent variable go on the x-axis?