In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This science fair project idea explores the different properties of matter.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

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

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Try this chemistry experiment with your curious kid and get some "shocking" results!

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Challenge your learner to design and build a city of their own in this creative engineering activity.

The purpose of this science fair project is to build a basic radio.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.