Hi, tomorrow is my science practical and i need help with independent and dependent variables. PLEASE HELP
These sites should help you.
http://nces.ed.gov/nceskids/help/user_guide/graph/variables.asp
http://www.uncp.edu/home/collierw/ivdv.htm
http://www.lhup.edu/sboland/independent_and_dependent_variab.htm
thank you soo much Ms. Sue,but i still don't get it. And Lulu i looked on google and it didn't help me.
Please take your time and study those sites carefully.
i always get confused though i am soo going to FAIL
i also have a geometry test tomorrow and i don't get irregular shapes
What do you need to know about irregular shapes?
Of course! I'd be happy to help you understand independent and dependent variables for your science practical.
In a scientific experiment, the independent variable is the variable that is deliberately manipulated or changed by the researcher. It is the variable that you, as the experimenter, have control over. The independent variable is what you intentionally change in order to see how it affects the dependent variable.
On the other hand, the dependent variable is the variable that is observed or measured as a result of the changes made to the independent variable. It is the variable that you are studying and trying to understand how it responds to the changes in the independent variable.
To identify the independent and dependent variables in your experiment, you should ask yourself these questions:
1. What am I intentionally changing or manipulating in this experiment? This would be your independent variable.
2. What am I observing, measuring, or expecting to change as a result of the manipulation? This would be your dependent variable.
For example, let's say you were doing an experiment to investigate how different amounts of fertilizer affect plant growth. In this case, the independent variable would be the different amounts of fertilizer that you give to each group of plants. You can control and adjust the amounts of fertilizer you provide.
The dependent variable, in this case, would be the growth of the plants. You would measure and observe the changes in plant growth as a result of the different amounts of fertilizer used.
Remember, it's crucial to have only one independent variable in an experiment to ensure that you can accurately attribute any observed changes to that specific variable. All other variables should be controlled and kept constant to eliminate any potential confounding factors.
I hope this explanation helps you understand the concepts of independent and dependent variables better. Good luck with your science practical!