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

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.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea explores whether talking to a plant will help it grow.

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

This science fair project idea explores how length affects the weight a bridge can hold.

Make a backbone model to explore human anatomy and life science.

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.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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

In this science fair project, students create their own miniature salt flats at home.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science fair project idea investigates the hardness property of minerals.

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

This science fair project idea examines which type of insulation holds in the most heat.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea explores the egg's thin membrane.