Controls and Variables

A neatly formatted outline of the steps of the scientific method can be used as a reference sheet for your future science fair participants. For each step, you will find a few guiding questions or points to remember when working on...

Most teens like to sleep in as late as possible, so testing the fastest way to get to school sounds like a great idea. A presentation walks through how to identify the controls, independent variables, and dependent variables in setting...

Steps of the scientific method are summarized, and then an example experiment is presented to allow practice identifying the steps. The graphics and animations are a little blurry, but this otherwise well-formulated presentation will...

How do we know what we know? Examine the asker of this, and many other questions, during the 14th installment in a 15-part History of Science video series. The narrator explains the important contributions made by Galileo, Bacon, and...

Students explore scientific method and scientific investigation They conduct an investigation using bacteria and antibiotics. In addition, they verbalize their experimental results.

Middle school scientists learn the steps of the scientific method by watching this phenomenal film and by singing a karaoke song! They are introduced to making observations and hypotheses, determining variables, data collection, and...

Sample size and controls are features of the scientific inquiry process that are discussed in this quick-paced quip. A comparison is made between randomized clinical trials and epidemiological studies. Terms such as placebo,...

In this experiment instructional activity, students read over examples of different experiments and identify the control group, and independent and dependent variables. This instructional activity has 20 short answer questions.

Students gain an understanding of the real world applications of the scientific method. They design their own experiments to prove or disprove the existence of other modern legends, and they design and carry out an experiment to test a...

In the late 1700s, Edward Jenner applied the scientific method and discovered that injecting people with cowpox prevented them from acquiring smallpox—leading to the first vaccine. In the fourth video of the series, individuals listen to...