This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Forget the measuring stick! This fun math activity uses a body part, your child's hand, as a ruler.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This experiment investigates if small changes in your diet can alter your basal body temperature.

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

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

Practice measurement using centimeters in this fun math race designed for your second grade student!

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

These pretzel reindeer cookies are a great holiday recipe for kids to make. Rudolph and the whole gang agree!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector