Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

These secret code activities are fun, and also provide fourth graders with great opportunities to practice language development and logical reasoning.

Sultan Ahmed Mosque is often referred to as the Blue Mosque. In this activity, your kid will build his own Blue Mosque just in time for Ramadan!

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Show your fourth grader how to embrace a green lifestyle and enjoy the outdoors with a homemade, recycled picnic basket.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

In this experiment, the weight of aluminum cans will be compared.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Children will learn about food waste and conservation, create a poster that lets others know about the importance of food conservation, and make a plan to waste less food and consume with mindfulness.

Help your 4th grader learn how to make a topographic map and strengthen key grade level social studies and math skills in the process.

This activity encourages self-expression. When your child is finished she will have created a personalized pin to wear or give as a gift!

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Encourage your child to take ownership of a plant by creating a care plan and following it over the course of a couple of weeks.

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

An home science experiment for older students that teaches about the science behind heat.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Plan a family dinner based on the "Little House" books, and encourage reading in the household!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Celebrate Black History Month by having your child make her own version of a kente cloth after learning what the different colors on a kente cloth symbolize.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.