Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

Try this arts and crafts activity with your preschooler: make bread from yeast dough to teach her about the science behind bread baking.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Science fair project that determines whether moths are attracted to one color of light more than others.

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This science project investigates the influence of different genres of movies on appetite.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science research project challenges students to think of more effective lobster farming methods.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.