Science Experiments

When cornstarch is mixed with vinegar, it makes a cloudy solution. It cannot dissolve in the vinegar, so it creates a liquid that has cornstarch particles floating in it turning the liquid cloudy.

Since you are looking at the proposition that a good balanced breakfast helps concentration then the independent variable is a good balanced breakfast.

However, if your study was simply looking at the relationship between a good balanced breakfast and concentration in school, either variable could be the independent variable. It could be argued that only by concentrating in school would you learn what a good balanced breakfast was.

u measure it in grams man yh u get it

No. They are two quite different things.

Sometimes yes, but often that is not considered an independent variable but simply a replication of the same experiment.

It could be the experimenter, someone else (in a double blind experiment) or nobody.

It can be but it is equally possible that the experimenter has absolutely no control over the independent variable.

For example, in studying the grades of a class in a school, the pupils' gender may be an independent variable of interest. But the experimenter cannot control that variable.

How many km are there in 600 centimeter?

1. Find a question that cannot be answered because there is insufficient context.

2. Post an answer.

3. Move on to other things.

Four normally.

Time.

Feed, if growth of a living organism.

It could be but need not be.

Three. All nonzero numbers are significant, and any zeros in between significant numbers are significant.

Any variable can be an independent variable: it depends on the context.

diagram

the variable that is purposely changed by the experimenter.

Its existence is the only independent variable. Anything else depends on the context of the study.

dependent variable

For discrete data, a bar chart. For continuous data a grouped frequency chart (histogram).

In most real life cases, limiting an experiment to only one independent variable makes the whole experiment a waste of time. More often than not there are several independent variables.

It can be. If you are looking at the germination time under different conditions of temperature and humidity etc.

So no other variables influence your results.

it is the thing in the expierement that you dont change

Sadly not because the average weight of a banana is 118 grams and the average amount of potassium in a banana is 422 mg and that is not enough potassium for the banana to burn purple due to all of the chemicals that make up a banana