This discussion of statistical experimental designs is presented in notes with examples added as needed.

Given investigation scenarios and lab procedures, students will identify independent variables, dependent variables, constants, and control groups.

A set of exercises where students must analyze statistcal data and methodology and answer questions about distributions, sampling, results, accuracy, frequency, experimental design, and ethical practices.

The goal of this electricity and electronics science fair project is to understand how ions are used to propel spacecraft in space, and to use a NASA online simulator to design your own ion engine. The Science Buddies project ideas are...

In the first part of the activity, each student chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days before weighing it to determine the amount of mass lost. This mass corresponds to the amount...

Students set up a simple way to indirectly observe and quantify the amount of respiration occurring in yeast-molasses cultures. Each student adds a small amount of baking yeast to a test tube filled with diluted molasses. A second,...

This virtual laboratory demonstrates how an enzyme-linked immunosorbent assay (ELISA) is carried out and some of the key experimental problems that may be encountered. Students will learn about the assay procedure and the equipment and...

Games are designed to help learners understand and apply concepts of probability. determine fairness.

Short article on a experimental air breathing rocket engine.

Students conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. The three liquids are water, rubbing alcohol, and vegetable oil; because of their different surface...

This science fair project for Science Buddies lets you be the rocket scientist. See how the rocket design changes its performance. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and...

This online text explains what generalizability and transferability are and their importance in research methodology. Their applications in different types of experimental contexts and designs are also explored.