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.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates whether plants can survive being frozen.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

Create a bee garden to help shelter bees in your area.

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.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Challenge your learner to design and build a city of their own in this creative engineering activity.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project examines how seeds hitchhike on animals and clothing.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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