A controlled variable is something that doesn't change throughout the testing. Its also not a primary concern.
A dependent variable is something that is being tested or measured. In the image the dependent variable could change depending on what the independent variable is.
A independent variable is something That could be changed or controlled. It almost always changes and it influences the dependent variable.
On the other hand quantitative has more to do with measuring and specifics. For example the green bar is 6 inches tall and 2 inches wide.
The meaning of qualitative is something that describes properties or as we know the 5 senses. Your not really getting into specifics your more describing what it looks like.
An inference is using what you know. Using evidence or reasoning.
Last but not least is the conclusion. A conclusion is what you learned from what you did. Its what you studied and tested. Its also hat you thought about at the start.
Results are what you get from your tests that you took. Its all of your information that you collected.
A experiment is a test on your hypothesis. You want to test it at least 3 times to make sure you are correct.
A hypothesis is a if then statement. Its a educated guess based on what your testing.
A problem in the scientific method to me is something that you want to find or test.
What observation means to me is using your 5 senses. Your 5 senses are smell,taste,hear,touch,see.