Learn Science Variables with the Walking Water Experiment

Thursday, February 28, 2019

Walking water is a fun experiment that you can use to teach or learn all about Science variables.

In science experiment you have three variables.

The independent variables, dependent variables and control variables.
The independent variable also called the manipulated variable has the ability to stand alone and is the variable you are changing or manipulating.
In simple terms you change the independent variable.
You will find it on the x-axis.
The dependent variable also called the responding variable depends on the independent variable. In simple terms the dependent variable is what you measure. You will find it on the y-axis
Control variables are variables that need to remain constant for accurate results.

science variables

You can use the experiment " Walking Water" in order to review independent, dependent, and control or constant variables.

In the experiment "walking water" paper towels are set in cups.
In addition, every other cup is empty, and food coloring is added to every other cup. In order to introduce the independent variable, I used two types of water. I used freshwater and saltwater. I then let it sit for several hours.

Over time water moves from the cup with water to the empty cup with the help of the paper towels.

                               walking water experiment

In order to demonstrate the dependent variable, I measured the amount of water that moved to the empty cups. The amount of water that moves to the empty cup depends on the type of water used which is the independent variable.

The control variables are variables that should be kept the same. These include the same cup, the same amount of water, and the same paper towels.

You can remember how to graph the variables properly using,

  • Dependent
  • Responding
  • Y-axis

  • Manipulated
  • Independent
  • X-axis
I have an additional video on Science variables.

In this video, I give the example of changing the air pressure in my car in order to see if the gas mileage increases or decreases.

Independent Variable: Changing the air pressure. I'm manipulating this variable.

Dependent Variable: Measuring the gas mileage.

Control Variable: Using the same car, same driving conditions, same type of tire.

Here is another example.

science variables

Do carbon fiber running shoes allow you to run 400 meters faster?

Independent Variable: The different type of shoes. Carbon fiber and shoes without the carbpn fiber.

Dependent Variable: Measuring the time it takes to run 400 meters.

Control Variable: Same surface,same wind speed, same temperature.

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