VanCleave's Science Fun

Your Guide to Science Projects, Fun Experiments, and Science Research

  • Home
  • ASK JANICE
  • Teacher Guide
  • Homeschool Science For Kids
Home » Project: Slime/Variable

Project: Slime/Variable

By Janice VanCleave

Three types of variables, controlled, manupulated-independent, and responding-dependent.
  This Diagram is from a Science Fair Video Created by Kevin Tremmer. Click the diagram to see the video.A science fair project should have three types of variables: controlled, independent, and dependent.

 Variables in A Slime Experiment

Variable is the name given for any part of an experiment that changes. For example, the following question identifies what is happening as well several variables which are identified.

Question: If a glue solution and a borax solution are mixed, what effect would the ratio of the solutions have on how easily the slime flows?

Variables in a Slime Experiment:

1. glue solution —type of glue, concentration of the solution

2. borax solution–source of borax, concentration of the solution

3. ratio of solutions– Examples are: 1 part glue + 1 part borax; 2 parts glue + 1 part borax; etc….

4. thickness of slime–Another term for this would be viscosity, which is the resistance to flowing.

Types of Variables

independent variable (IV) A variable that is purposely changed in an experiment to
cause another variable to change. This will be the different ratios of glue and borax mixed together.

dependent variable (DV) A variable that changes because of changes in the
independent variable. This will be the thickness (viscosity) of the slime produced.

controlled variables All variables that you do not want changed. This would be how the glue and borax solutions are made as well as any and all materials used to do the experiment.

Step 4: Project Question

Guide to the Best Science Fair Projects

(Paid Link)

 

Share this:

  • Click to email a link to a friend (Opens in new window) Email
  • Click to share on X (Opens in new window) X
  • Click to share on Facebook (Opens in new window) Facebook
  • Click to print (Opens in new window) Print

Filed Under: Science Projects Tagged With: controlled variables, dependent variables, independent variables, slime, variables

Topic Search

Visitors From All Over the World


Welcome to Janice’s Science Extravaganza!

The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

Copyright © 2025 · Janice Van Cleave · JVC's Science Fair Projects · Log in