Science Experiments

Question: What are variables in Science Experiments please help thanks so much?

what is a variable what are independent variables, controlled variables, and dependent variables. Can you give me examples of each please Thank you so very much

NB
Im doing an experiment to test the effectiveness of 3 different cleaners in removing red wine stain. what are the variables in this experiment Thanks

Answer: Independent: The factor you change. (The cleaner).

Dependent: The factor you measure. (How much stain the cleaner cleans).

Control: The factor you control. (The red wine stain). (You must keep the stain the same size or else it won’t be a fair test).

To get more marks (These will really help you to get an A or A*):

Continuous (whole numbers): The number of cleaners.

Descrete (Numbers including decimals): The amount of red wine stain to start with, and the amount left after applting the cleaners.

Catagoric (Word labels): The names of the cleaners.

Ordered (Things you can put in order): The cleaners in a list starting from the worst and ending with the best.

Science Experiment “Using Your Noodle” part 2