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Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

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.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

This science fair project idea will be examining oxidation and acid rain

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

Plant a mini herb garden and teach your child about science and nature.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

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.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.