What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project teaches students about wilting and browning of salad greens.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

In this science fair project, young children notice and track changes in trees throughout the year.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Engineers in training can get started with this simple wheel-and-axle construction activity.

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!