In this science fair project you will make a model of a cell membrane using very simple material.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this activity, your child will reflect on one role model in their life or research one historical figure that has displayed perseverance. Then, they will create a slideshow presentation or poster that defines and illustrates perseverance.

Learn about the architecture of Asia by building your very own model of a pagoda!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

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

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

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

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

Cultivating resilience is one of the most important ways we can overcome challenges and reach our goals. In this activity, children will explore the concept of resilience and then create a video to explain and teach resilience to others.

In this project, the affects of vitamin E are observed on a rose petal.

Challenge your fourth grader to try to recreate the geography of her state using just flour, salt, and water.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

In this activity, your child will design their own Best Self Journal to reflect on ways they have been their best each day.

This science experiment tests if dog saliva can really help heal wounds.

Being a kid is hard work. Soothe stresses and calm fears with this DIY Zen garden -- all you need is sand, stones and a shoebox.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Reusable Christmas gift bags are eco-friendly and pretty. Make a batch of reusable Christmas gift bags for your friends and family this holiday season.