Find out whether matte or shiny nail polish lasts longer.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

This science experiment tests if dog saliva can really help heal wounds.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this fun experiment, we'll find out how color affects heat absorption!

Check out this cool science fair project on identifying rocks and minerals for kids.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science fair project idea determines if the temperature of rubber effects how high it bounces.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

Make sourdough bread...and learn some colonial history and modern science in the process!

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea investigates how color affects temperature.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.