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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
More light will increase a turtles rate of growth. Identify the I.V. and the D.V.
I.V.= Amount of light & D.V.= Growth of Turtle
I.V.= Growth & D.V.= Amount of light
I.V.= Amount of food & D.V.= Growth of Turtler
I.V.= Amount of light & D.V.= Turtle's appetite
2
How do you calculate mean?
It is the number that appears most often in a set
It s the middle number in the set
Subtract the lowest number from the highest
Add all the numbers then divide by the # of values
3
The variable that you MEASURE at the end of the experiment is called...
Controlled Variable
Independent Variable
Measuring Variable
Dependent Variable
4
A series of steps used by scientists to solve a problem or answer a question.
Scientific Method
Independent Variable
Order of Operations
Hypothesis
5
On a graph where should the dependent variable go?
The Y-Axis
The X-Axis
6
How do you calculate mode?
It is the middle number in the set.
Subtract the lowest number from the highest
Add all the numbers then divide by the # of values
It is the number that appears most often in the set
7
Anything in an experiment that can INFLUENCE the OUTCOME is called a...
Constant
Dependent Variable
Independent Variable
Variable
8
Find the median for the following: 2, 3, 6, 9, 10, 14, 20
9
7
6
10
9
Find the range for the following: 2, 3, 6, 9, 10, 14, 20
17
16
18
20
10
Find the mode for the following: 6, 4, 3, 6, 3, 9, 5, 4, 3
6
3
4
5
11
Create a title for a graph based on the following: Battery life increases as temps decrease.
Temperature Affects Batteries
What Improves Battery Life
Temperature Affects Battery Life
Battery Life Affects Temperature
12
A possible answer or solution to a question or problem.
Educated Guess
Law
Hypothesis
Theory
13
When scientists do step 4 (Analyzing Data) What are they doing in this step?
Organizing it into charts and graphs to make sense of it.
Performing an experiment to test their hypothesis
Seeing if they were correct or not.
Sharing their information with others.
14
Analyze the graph below: about how many immigrants came from France?
400
300
360
380
15
More light will increase a turtles rate of growth. What would be the TITLE for the graph?
Turtles and Light
Turtle Growth Affects Amount of Light
Amount of Light Affects Turtle Growth
Turtle Power
16
If your hypothesis is incorrect, what should you do?
Create Go back to step 1 and ask a new question
Go back to step 2 and create a new hypothesis
Start over from the beginning
Go back to step 3 and create a new experiment
17
Eating while you take a math test will increase your score. What is the dependent variable?
Eating or not
Math Test scores
Type of snack
Math
18
How do you calculate median?
It is the number that appears the most often
Subtract the lowest number from the highest
It is the middle number in the set
Add all the numbers then divide by the # of values
19
The proper way to title a graph is...
(Dependent Variable) AFFECTS (Independent Variable)
(Independent Variable) loves the (Dependent Variable)
(Independent Variable) AFFECTS (Controlled Variable)
(Independent Variable) AFFECTS (Dependent Variable)
20
Which of the following is NOT a rule you need to follow when writing a Hypothesis?
Needs to be inaccurate
Needs to be confident
Needs to be in an "If...then..." format
Must be testable
21
When finding mean, median, mode and range; what is the first thing you need to do?
You do not need to do anything
Put numbers in numerical order
Put all the even & odd numbers together
22
In order to keep an experiment FAIR you can only change _____ variable(s) at a time.
2
3
none
1
23
The variable that you or the scientist MANIPULATES or CHANGES in the experiment is called...
Independent Variable
Dependent Variable
Varying Variable
Controlled Variable
24
Identify the independent variable: Studying in cold temperatures will reduce test scores.
Test scores
Temperature of where studying occurs
Teacher
Subject
25
What must you do first in the scientific method (Pre-step)?
Form a Hypothesis
Make an Observation
Ask a question
Make predictions
26
Analyze the Pie Graph below. Which method of transportation is the least popular?
Walking
Bus
Car
Bike
27
Variables in an experiment that REMIAN the SAME in all groups are called
Factors
Dependent Variables
Independent Variables
Constants/Controlled Variables
28
Listening to rap VS country music will decrease intelligence. (ALL are constants here EXCEPT)
Timeframe
Location
Volume of music
Type of music
29
This is the group in the experiment that DOES NOT receive the TREATMENT.
Control
Hypothesis
Testing
Experimental
30
This is the group in the experiment that RECEIVES the TREATMENT.
Exposed
Control
Experimental
Testing
31
On a graph where should the independent variable go?
The Y-Axis
The X-Axis
