Experiments

These biology experiments are designed for you to do at home or school using simple equipment. For some experiments, you may need a calculator. Here is a link to an excellent one provided by Web2.0calc.

To access experiments, click on one of the experiments listed below. In most cases, it is simplest to copy the experiment into a word processing program, and then print it out.

Illustration of girl with backpack in a lab coat hiking.

Mysterious World of Dr. Biology

Written by: Dr. Biology

Science is full of mysteries and unknowns waiting for you to discover. Beyond their usual research, there have been some unusual things happening in Dr. Biology's laboratory and they need your help. It is up to you to uncover what is happening.

Nanoparticles - A Matter of Scale

Written by: CJ Kazilek

You may not think about it, but size does matter. It is especially true when talking about the very tiny things that exist in the nano world.

Seasoned to the Tilt

Written by: Abel Torres, Daniel S. Brehony

Have you ever thought about your favorite season, and why it looks and feels the way it does? This activity will help you see and understand why Earth has seasons, and the two things that work together to make seasonal changes happen.

Seeing DNA

Written by: Melissa Wilson Sayres

Every living thing uses DNA as the instructions for life. But how can we be sure that something so small is actually there at all? Here is one experiment that you can do at home or school that will actually let you see DNA.

Sooty Selection

Written by: Megan Rowton, Karla Moeller, Robin Greene

Discuss ideas of natural selection, play a selection-based game, and take a trip through time to see how scientists of the past figured out just how a trait is passed from a parent to its offspring.
Also in: Español | Français

When Water Gets Icy

Written by: Kyle Kinzler

In this experiment, we will look at one major difference between frozen freshwater and frozen saltwater.

Your Dog's Personality

Written by: Scientific Explorer

How well do you know your dog? You'll find out lots more about your pet's personality by answering the questions in this chart.

A person standing before desert flats in Death Valley

Is Heat Dangerous?

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