Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Take a dive into the candy jar with this yummy science experiment.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Determine if gender affects the ability to identify different smells.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.