answersLogoWhite

0


Best Answer

Ideally, an experiment should test only one variable (the independent variable) at a time.

If you have two or more variables changing at the same time you have no way of knowing which variable is causing your results.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

9y ago

A variable affects the outcome of an experiment. The amount of a variable in an experiment will vary depending on the experiment and how many variables you want to effect it. Some variables can be controlled while others can not.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

An experiment involves three types of variable.

The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.

The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.

All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.

This answer is:
User Avatar

User Avatar

Wiki User

13y ago

you could have as many as possible depending on the topic of the project.

An experiment involves three types of variable.

The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.

The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.

All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

because cheetos are pretty good, therefore you must eat them.

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

two

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

Just one

This answer is:
User Avatar

User Avatar

Wiki User

14y ago

1

This answer is:
User Avatar

User Avatar

hilderechev03

Lvl 2
1y ago

4

This answer is:
User Avatar

User Avatar

Anonymous

Lvl 1
4y ago

1

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many variables do you need in a science experiment?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How do you describe variables in an experiment operationally?

Variables work by telling you what you need to change, what to observe, and what to keep the same in a experiment.


What are some Science experiment for gymnastics?

What are some science experiment for gymnasticsI need a science experiment for gymnastics


What are some experiment for gymnastics?

What are some science experiment for gymnasticsI need a science experiment for gymnastics


Why is it importaint to controle variables in an experiment?

You need to control the variables because if you have two or more variables in an experiment you will never know which variable caused a change or not caused a change.


How many variables should change in a scientific experiment?

It depends what kind of experiment you do. For some you just need one. For others you may change two variables. In most cases you only change one


When you make a conclusion about an experiment what do you need to concider?

You need to consider the results, your hypothesis, and the variables and controls used throughout the experiment.


How many variables does a controlled experiment test?

As many as you need. You can't change more than one if you want accurate results.


Is there a science experiment for gymnastics?

In gymnastics you will need to have an experiment for gymnastics when you are doing a research


What do variables and independent variables have in common?

well they both need to be changed in order to have done the experiment right if it is nott right then do it again


Dependent and independent variables in the scientific method?

In a scientific method (or experiment), a dependent variable is one that changes throughout the experiment. These are the ones whose changes need to be recorded. Independent variables are those that influence the experiment, but do not change throughout the experiment and remain the same value.


How do you set up the variables when graphing the results of a controlled experiment?

you need to put them in order


How many variables do you need in a science fair project?

you need a least three and thats not what judges look at they look at neatness, and other stuff you need to work on....