Scientific Method
Variables
Observations and Inferences
Graphing
Miscellaneous
100
The procedure to test a hypothesis is ___________.
The Experiment.
100
The independent variable is the variable you ______________________.
change
100
What do we use when we make an observation?
Our five senses
100
The independent variable is labeled on which axis?
the x-axis
100
Linda wants to know which type of fertilizer will help her plants grow faster. What would the constants be in her experiment?
amount of water and sunlight, type of plant, amount of fertilizer, location, etc
200
A testable researched answer to a scientific question. _______________.
A Hypothesis
200
The dependent variable is the one you______________________.
Measure
200
What is a qualititative observation?
An observation that you can describe with your senses, such as the smell of garlic cooking.
200
The dependent variable is labeled on which axis
the y-axis
200
After making observations and inferences you create this which is a possible explanation of your observations and can be tested.
hypothesis
300
What is the process of repeating the same test over and over called?
Repitition
300
How does parachute size effect the rate of a falling object?
List the independent variable. The dependent variable.
I: parachute size
D: rate of falling
300
What is a quantitative observation?
An observation that you can measure with numbers, such as the number of freckles on a person's arm.
300
A __________ graph is used to communicate data collected over a period of time.
line
300
Billy is testing golf balls. He drops three different brands of balls from 40 cm and measures how high they bounce. He drops each ball 10 times.
Repitition
400
Data can be organized into ________, __________, or _________.
charts, graphs, tables
400
List the independent and dependent variables:
An experiment is performed to determine the amount of water needed for optimal plant growth.
I: amount of water
d: plant growth
400
What is the difference between an observation and an inference?
An observation is the information obtained by using the senses.
An inference is a conclusion reached based on evidence and reasoning.
400
This graph displays data either horizontally or vertically and allows viewers to compare items displayed
a bar graph
400
Dr. Smith has been reading about another scientist’s research in a physics journal. He plans to do these experiments himself and see if he gets the same result.
Replication
500
What is the scientific method based on?
Facts and evidence based on observations-never opinion.
500
How does parachute size effect the rate of a falling object?
List the independent variable. The dependent variable.
I: parachute size
D: rate of falling
500
6.5-7 cm
500
This graph is a circular chart divided into sectors, illustrating numerical proportions.
a pie chart
500
Linda wants to know which type of fertilizer will help her plants grow faster. What would be Linda's control group in this investigation?
a plant with no fertilizer added