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Scientific Method & Experimental Design Flashcards | StudBud
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Scientific Method & Experimental Design
Scientific Method & Experimental Design
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1
A possible answer or solution to a question or problem.
Theory
Hypothesis
Law
Educated Guess
2
If your hypothesis is incorrect, what should you do?
Start over from the beginning
Create Go back to step 1 and ask a new question
Go back to step 3 and create a new experiment
Go back to step 2 and create a new hypothesis
3
What must you do first in the scientific method?
Make predictions
Form a Hypothesis
Ask a question
Make an Observation
4
More light will increase a turtles rate of growth. Identify the I.V. and the D.V.
I.V.= Growth & D.V.= Amount of light
I.V.= Amount of light & D.V.= Turtle's appetite
I.V.= Amount of food & D.V.= Growth of Turtler
I.V.= Amount of light & D.V.= Growth of Turtle
5
On a graph where should the dependent variable go?
The Y-Axis
The X-Axis
6
The proper way to title a graph is...
(Independent Variable) loves the (Dependent Variable)
(Independent Variable) AFFECTS (Dependent Variable)
(Dependent Variable) AFFECTS (Independent Variable)
(Independent Variable) AFFECTS (Controlled Variable)
7
More light will increase a turtles rate of growth. What would be the TITLE for the graph?
Turtles and Light
Amount of Light Affects Turtle Growth
Turtle Growth Affects Amount of Light
Turtle Power
8
In order to keep an experiment FAIR you can only change _____ variable(s) at a time.
1
3
2
none
9
Anything in an experiment that can INFLUENCE the OUTCOME is called a...
Dependent Variable
Constant
Independent Variable
Variable
10
Eating while you take a math test will increase your score. What is the dependent variable?
Math Test scores
Math
Eating or not
Type of snack
11
The variable that you MEASURE at the end of the experiment is called...
Measuring Variable
Controlled Variable
Independent Variable
Dependent Variable
12
On a graph where should the independent variable go?
The Y-Axis
The X-Axis
13
When scientists do step 4 (Analyzing Data) What are they doing in this step?
Seeing if they were correct or not.
Sharing their information with others.
Performing an experiment to test their hypothesis
Organizing it into charts and graphs to make sense of it.
14
The variable that you or the scientist MANIPULATES or CHANGES in the experiment is called...
Varying Variable
Dependent Variable
Controlled Variable
Independent Variable
15
How do you calculate mean?
Add all the numbers then divide by the # of values
Subtract the lowest number from the highest
It is the number that appears most often in a set
It s the middle number in the set
16
How do you calculate median?
It is the number that appears the most often
Subtract the lowest number from the highest
Add all the numbers then divide by the # of values
It is the middle number in the set
17
Variables in an experiment that REMIAN the SAME in all groups are called
Constants/Controlled Variables
Independent Variables
Dependent Variables
Factors
18
Which of the following is NOT a rule you need to follow when writing a Hypothesis?
Must be testable
Needs to be inaccurate
Needs to be in an "If...then..." format
Needs to be confident
19
This is the group in the experiment that DOES NOT receive the TREATMENT.
Control
Testing
Experimental
Hypothesis
20
Analyze the Pie Graph below. Which method of transportation is the least popular?
Walking
Car
Bike
Bus
21
This is the group in the experiment that RECEIVES the TREATMENT.
Experimental
Exposed
Control
Testing
22
Analyze the graph below: about how many immigrants came from France?
300
400
380
360
23
Create a title for a graph based on the following: Battery life increases as temps decrease.
Temperature Affects Battery Life
Temperature Affects Batteries
What Improves Battery Life
Battery Life Affects Temperature
24
Identify the independent variable: Studying in cold temperatures will reduce test scores.
Subject
Test scores
Teacher
Temperature of where studying occurs
25
A series of steps used by scientists to solve a problem or answer a question.
Hypothesis
Scientific Method
Order of Operations
Independent Variable
