Explore scientific concepts with this experiment that introduces kids to the scientific method!

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

Discover which battery composition (type) lasts the longest.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

A science scavenger hunt can be a fun way to learn about science. Test your child's knowledge of scientific terms with this science scavenger hunt.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Here's a simple craft activity that can help your youngster better visualize the life cycle of a frog as a circle.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

This science fair project idea explores the fastest average speed a human can talk.

Learn about the right-hand rule for magnetic force! Use a cathode ray tube in this physics experiment to see a magnetic field's effect on an electron beam.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Your child will decorate a headband with any bugs they can think of, then they'll add antennae so they can pretend to be a bug!

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.