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Fourth and fifth graders will cut out and assemble a human skeleton from paper in this engaging life sciences printable.

Paper Skeleton

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

A Single Movable Pulley and Mechanical Advantage

This science fair project idea examines whether boys and girls differ in reflexes.

Guys vs. Girls: Who Has Better Reflexes?

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Reaction Time: The Ruler Drop Test

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

Make a Backbone Model

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.

What Causes the Seasons to Change?

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

How to Tell Time by the Sun

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Factors Affecting Seed Germination

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Explore the Phases of the Moon

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Angle of Heat

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

How to Separate Salt from Water

Every season comes with different celebrations! In this lesson, your students will learn about the seasons while exploring different ways that people celebrate events in each season.

Explore the Seasons

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Factors Affecting Solubility

Energy is an essential part of our daily lives, but the resources that power the Earth are being threatened. In this lesson, students learn about renewable and non-renewable resources, including those that need protection.

Renewable and Non-Renewable Energy

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Albedo

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Lactose and Lactase: Exploring Enzymes as Catalysts

This science fair project idea investigates if fats add to the flavor of food.

Low Fat, Low Taste?

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

With My Eyes Closed Shut! Using all of Our Senses Except Sight, Can we Readily Identify Objects?

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

Create a Polar Bear Habitat!

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

Lung Model

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.

Coriolis Effect and Hurricanes

This science fair project idea experiments with spinning color wheels and optical illusions.

A Trick for the Eyes: Color Wheels and Optical Illusion Tops

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.

Decomposition Rates of Biodegradable Materials

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Complete Circuit: How Does a Flashlight Work?

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Making Fake Snot!

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