Science Fair Assignment : The Cleanest Cleaner

These steps would be repeated for all three paper towel brands. At the end of the experiment, the paper towel that held the most quarters would be the strongest. Data for experiment still needed to give a conclusion to project.

You know what color phenolphthalein and BTB turn when testing an acid or a base. Use three household cleaning products with BTB. Name the items tested and their results:

Research Question: This investigation will determine the how the amount of water (independent variable) affects the amount the amount of time (dependent variable) it takes for the Alka-Seltzer to dissolve.

There are several parts to the experiment such as both the independent and dependent variables. The independent variable is controlled or changed during the experiment to test the effects on the dependent variable. The dependent variable is tested and measured during the test .A controlled variable is an example for an independent variable would be variable that is held constant throughout the experiment. An example is a theory that could extend a person’s life expectancy. The independent variable is the amount of vitamin given to the subject within the experiment. The dependent variable is the life span

“Ajax Spray ‘n’ Wipe” specifically states that it kills E. coli. This is because of the lactic acid in the spray, which is used as a natural antibacterial agent.” ("Colgate-Palmolive | Product Ingredients"). Lactic acid kills unwanted bacteria especially in food which is where E. coli is often found and transmitted, of which meat is the most common cause. Vinegar was chosen as a substance because “it can be used as a bleach alternative” (“Disinfectants: A Guide to Killing Germs the Right Way”) and bleach kills E. coli. It is also used as an everyday cleaning product. The last substance chosen was salty water because it is thought that salt kills bacteria. Much of the world’s population has access to salt and if the experiment proves that salt kills E. coli it would be a helpful factor for further treatment of the

Assignment 4: I developed a hypothesis to predict what effect an increase in island size will have on beak size and finch populations. I tested my hypothesis by leaving all other parameters at their default values. Selected the Island Size input and use the sliders to increase the size of either. Then I tested the effect of the parameters to influence population size and beak size by designing and running experiments to get my

In our Penny Lab, we wanted to extend what we were told to do with experimental design. We’re doing this because we wanted to prove what he thought our hypothesis had been, and a hypothesis can not be true unless it can be tested. We investigated what variables made the Penny Lab easier, or harder. As a class we decided to investigate variables like, dropping the penny from the same height, and applying the same pressure to the penny for each drop. But first we had to know what variables were, and which variables we needed to use in the experiment. The variables were, the independent variable, dependent variable, the experimental group, and the control group. We investigated this to show how much water a penny could hold, but we introduced

This experiment has a goal of testing a household cleaning theory that dark sodas such as Coca Cola or Pepsi can be used as a cleaning agent and cut through dirt and grease effectively as a cleaner.  For the experiment, the researcher/writer has purchased Pepsi products, Pepsi specifically to use as the cleaning product to test.  The researcher/writer will clean six different types of messes (Food stains of ketchup and mustard on a shirt, kitchen counter grime/grease, bathroom counter soap scum, car windshield and battery corrosion on a car battery and bathroom counter/sink).  Each item will be cleaned with Pepsi and soap and water, with the soap

Fantastik is an all-purpose cleaner made by SC Johnson that has two main product lines; the Fantastik Original and the new, more powerful, Fantastik Evergreen. These are not just regular chemically made cleaning products but are 100% environmentally safe.

Variables: In this experiment, the temperature (in degrees Celsius) of the chemicals is the independent variable. To change the temperature, the materials are placed in a bath of water being heated by a hotplate.

Instructor: Kim Bates Course: Integrative Weekend – W2012 Date: March 4, 2012 Consultants: Deborah Sue Chee Eva von Biehler Mehdi Tahuri Serhiy Rudak S.Mehmood Ul-Hasan Vern Puchoon

The independent variable of my experience meant is what I’m going to be changing which is the substance, coffee. The dependent variable of my experiment is the Daphnia’s heartbeat per minute, which will also increase immensely. The units I will be using to collect the data is one minute per trial.

SDAC. (n.d). Soaps and Detergents. In Soaps and Detergents. Retrieved February 26, 2012, from http://www.healthycleaning101.org/english/SDAC_soaps.html

The experimental setup will be a pH meter placed inside each water bottle of water to check the acidity in each one, and it will be tested with a pH meter. The purpose of the investigation is to see which company of water bottles has the highest pH level. The independent variables are the different companies of water, the dependent variable will be the pH level of the water, and the controlled variable will be the pH meter, the computer and wires, the glass of water, and the distilled water.

* In every experiment there are variables that affect the way an experiment will go. The three types of variables that are measured are Independent, Dependent, and Controllable variables. In my experiment the Independent variable is the three different models of paper airplanes that I have chosen to make and experiment with. The Dependent variable includes the distance the paper airplane goes. The Controlled variable is me making sure that I throw the paper airplanes from the same starting point a well as the same weather conditions. The controlled variable is the one that cannot be changed because it would affect the other two variables. In this case I threw them in my house since I have a very long hallway that leads into the front family room and there is no furniture that would interfere with the results.