Germs are tiny organisms that can make you feel sick and cause disease. During this activity you will illustrate the steps germs take during transmission. You will learn about the different types of bacteria, how they are spread, and discuss ways to keep from getting sick.
In this experiment, we will look at one major difference between frozen freshwater and frozen saltwater.
These daredevil birds can be perfect subjects for a backyard experiment.
Learn to focus on detail and make keen observations that could be overlooked in a picture in this lesson on scientific sketching.
During this activity you will learn how to create your own food web. You will also analyze the feeding relationships between marine organisms and describe the importance of plankton to the ecosystem.
Do you think you need the same number of nerves in every part of your body? Where in your body might you need more nerves? See for yourself!
Also in: Español
Dr. Biology has teamed up with with the scientists in the laboratory of Jon Harrison and started an experiment to see how different temperatures can change how an animal grows. The Virtual Manduca Growth Experiment lets you see and graph the results. It also has some cool animations.
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
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.
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.
