Variables
What is the correct format for a hypothesis sentence
If / Then statment
What is the IV?
Researchers want to know what the effect of exercise is on heart rate
IV: excercise
How many brothers do I have?
4
The variable that you make different in order to test it.
What is a Independent VARIABLE?
What is the first step to writing a hypothesis
identify your variables
Identify the DV
Does changing the movement of water affect the color of the water?
DV: color of water
My favorite subject in school
science
The variable that you observe or measure during an experiment.
What is a dependent VARIABLE?
The step of the scientific method where you make graphs, look for patterns, and think about what happened.
What is the ANALYSIS?
What two variables go in your hypothesis
independent and dependent
identify the IV & DV
Does the type of liquid affect how fast ice will melt?
IV: type of liquid
DV: how fast the ice melts
My favorite dessert
ice cream
The step where you test your hypothesis
the experiment
what is the purpose of the hypothesis
to make a prediction about the relationship between the variables
Identify the control:
Does the type of shoe worn during a 20 yard dash affect the speed in which you can run?
Control: the distance ran, the person who ran
7:15-4:00
The number of variables that you can change in an experimemt.
What is one?
what 3 things make a good hypothesis
specificity, testability and based on existing knowledge
What are all the variables here?
What drink causes more stains on teeth?
IV: type of drink
DV: stains on teeth
Control: toothpaste, people tested
Favorite place I have ever been
New Zealand