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Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This competitive inequalities card game is a great way to help your child understand the connection between numerals and the values they represent.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Your child can count out six pumpkins or six crayons, but what is a six all by itself? ThatÃs a much harder concept to grasp.

Your preschooler or kindergartener will count their way to Valentine's Day while designing an imaginative and artistic set of counting cards!

Your child will learn more about coins and their denominations as he's asked to identify similar coins.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

This science fair project idea explores how far the average human can see.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Science fair project that explains and demonstrates the parallax principle.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Your child can explore color mixing and design while folding together a paint-filled paper and then using a marker to outline it.

Use the appeal of the common road sign to your advantage by creating a game with hidden learning opportunities.

This fun math game will help develop your child's counting skills and number recognition skills.

Mix fun with basic math in this fun homemade game of ring toss! Make rings out of paper plates and you're ready to play anytime, anywhere!

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

In this fun math activity, second graders will learn to estimate items in a jar! 

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.