Scientific Method
The definition of science
What is... a system of knowledge and the methods you use to find that knowledge
The amount of independent variables that can be tested in a controlled experiment
What is.... one
Define hypothesis
What is... a proposed answer to a question
In a controlled experiment, the variable that is changed to test the hypothesis is called the?
Define distance
What is... the length of a path between two points
An observation that describes the quality of an object such as color and appearance
What is... a qualitative observation
How does watching TV during studying affect a students test grades? What type of variable is in italics?
What is... dependent variable
What is... Are his students tired because they don't have enough coffee.
How many variables can be tested in a controlled experiment?
What is... one
Define displacement
What is... the direction from the starting point and the length of a straight line from the starting point to the ending point
An observation that includes data such as measurements
What is... quantitative
What effect does decreasing the temperature of a room have on a lifespan of a battery? What is the variable in italics?
What is... independent variable
Can a hypothesis be disproven?
What is... yes! Revising a hypothesis shows that you have learned more and want to dig deeper into the question
The definition of a control is...
What is... the variable used to compare against to see if the independent variable has any affect
Define speed
What is.... the ration of the distance an object moves to the amount of time the object moves (distance/time) ex: m/s, mph, km/h
The definition of the scientific method
What is... an organized plan for gathering, organizing, and communicating information
In a controlled experiment, the variable that is changed to test the hypothesis is called the
What is... the independent variable
Mr. S normally uses praises as a reward to train his dog. He wants to know if using a different tone of voice will change the response his dog has to the praise. Saying the same praise, "good boy", he uses a baby voice, a stern voice, and his normal voice to praise his dog. What is Mr. S' hypothesis?
What is... will using a different tone of voice change the response his dog has to the praise.
BONUS!!!
Define a controlled experiment
What is.... an experiment in which only one variable, the manipulated (independent) variable is deliberately changed at a time.
Define instantaneous speed
What is... speed at any given moment in time, shown on speedometer in vehicle
Sequence (place in the right order) the steps of this experiment according to the scientific method (aka which would you do 1st, 2nd, etc.).
A. Send your complete laboratory report to a national magazine for peer review. B. Place an equal number of alligator eggs in incubators set at 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, and 36 degrees Celsius. C. What incubation temperatures will produce a female alligator to hatch from an alligator egg? D. Plot alligator gender versus temperature results in a graphic format.
What is... CBDA
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and liquid. In this investigation, what is the independent variable?
What is... different liquids
Ms. Strohecker wants to know if her students work better when the room has more light. She sets up an experiment where she quizzes all of students in a room with all the lights on, with half the lights on, and with only some of the lights on. What is her hypthesis?
What is... will her students work better when the room has more light.
An experiment for a new asthma medication was set up into two groups. Group 1 was given the new drug for asthma, while group 2 was given the sugar pill. What is the control variable?
What is... the sugar pill
Calculate the speed of a car that has traveled 45 miles in 68 minutes
What is... (45miles)/(68 minutes)
45miles/1.134hours
39.7mph