Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Test your skills as a weather forecaster, and learn some science terms on the way!

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.