Birds and Their Songs

Pierre Deviche David Pearson CJ Kazilek

We see them practically everywhere. They are found flying in the high mountains and soaring along the thermal winds in the low deserts. There are those that are reclusive and others you can watch from your own back yard.
Also in: Español

Your Dog's Personality

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.

Heavy Water

Lynne Kelper

This activity explores how the temperature of water affects its density. You will need to gather the following materials: a pencil; a small paper cup; a small-mouthed, clear-glass jar (the cup should be able to sit inside the opening of the jar); three ice cubes; and food coloring.

Create Your Own Herbarium

CJ Kazilek

Have you ever seen an interesting plant that you wanted to keep? The best way to preserve a plant specimen is to press it and dry it. Here are the simple materials and steps you need to make your own herbarium.

Dr. Biology's Virtual Pocket Seed Experiment

Dr. Biology

Dr. Biology has been busy working on a new experiment and he needs your help. He has collected so much information from the experiment that he needs someone to analyze the data. All the results have been recorded in photographs, including some cool animations.
Also in: Español | Français

Build an Ant Farm

Rebecca Clark

Have you ever watched ants going into and out of their nest, and wondered what was going on underground? It’s pretty hard to find out from the surface. If you dig up the nest, the ants get pretty upset! So the simplest way to watch what ants do inside their nest is to trick them into thinking they’re underground when they actually are not. You can do this by putting them in an ant farm.

Collecting Ants

Rebecca Clark

There are several different ways to get ants for an ant farm, depending on when you would like to start the farm and how long you would like for your ant farm to last.

Nanoparticles - A Matter of Scale

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.

Composting

Edward Birge
Microorganisms in action! Turn a pile of grass clippings into an experiment.

Air Pollution

CJ Kazilek

The Phoenix metropolitan area, like many large cities, has problems with air pollution at certain times of the year. You can do a simple study to determine some of the factors that affect air pollution.

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