Definitions
This variable stays the same throughout the whole experiment
What is a controlled variable?
There are three types of ______.
What is variables?
If the ball is thrown over the roof then it will fall into the street and cause an accident because object cause accidents.
What is the independent variable?
Ball being thrown into the street
If I expose my plants to sunlight then my plants will grow.
Dependent Variable?
Amount of plant growth
Does the type of fertilizer affect how tall a plant grows
Type of fertilizer
Bacterial growth may be affected by temperature.
Independent variable
Temperature
Responds to the changing variable in an experiment
What is a dependent variable?
In an experiment, what a scientist measures or observes to see the effect is called the ___________.
What is dependent variable?
If athletes drink gatorade then their performance will increase because gatorade supplies energy to the body.
What is the dependent variable
Increase athletic performance
If scholars listen to trap music then they will act out more violently because trap music has violent lyrics
Dependent variable
Acting out violently
The greater the amount of soap in a soap, water mixture, the bigger the soap bubble can be made.
Amount of soap
Salt in soil may affect plant growth.
Independent variable
Dependent variable
Independent: The amount of salt
Dependent: The plant growth
The If then statement
Hypothesis
In an experiment, what the scientist changes is called the _____________.
What is independent variable?
If I put more soap in my bathtub then more bubbles will form because soap causes forms bubbles in the presence of water.
What is the dependent and independent variable?
Dependent Variable: Bubbles forming in water
Independent Variable: Amount of soap.
If I drink redbull then I will be able to fly because redbull gives people wings.
Dependent Variable:
Ability to fly
Drinking energy drinks make people more aggressive
Amount of energy drink drank
The group that receives the experimental change
Experimental group
This is a scientific procedure used to make a discovery
What is an experiment?
________ are kept the same throughout an experiment.
What is controlled variables?
If Capital Prep Scholars study for two hours everyday then their grades will increase because studying improves memory for test.
What is the Independent Variable and Dependent Variable?
Independent Variable: amount of time spent studying
Dependent Variable: Increase grades
The ball (in a "the farther a ball drops, the higher it will bounce" experiment)
How high the ball bounces
The more hours you study the better grade you will get
Amount of hours studying
The group that receives no change or a placebo
Control group
An element, feature, or factor in an experiment.
What is a variable?
In order to ensure a ____ test, there must be controlled variables.
What is fair?
Independent Variable: Amount of time spent practicing
Dependent Variable: Increased chance of winning a basketball game
What is the Hypothesis
If I spend more time practicing then my chances of winning basketball games will increase because practice makes perfect.
Does the type of fertilizer affect how tall a plant grows
How tall the plant grows
Eating breakfast in the morning increases ability to learn in school
Whether they ate breakfast before school or not
A company wants to test a new dog food that is supposed to help over weight dogs lose weight. After one month the dogs are checked to see if they lost any weight
What are the experimental and control group?
Experimental - dogs on new food
Control - dogs on normal diet