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

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.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Using a toy race car kids create a visual model of the Doppler Effect.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

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

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

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.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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

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!

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.