To help your child learn how to use a thermometer, try this temperature collecting activity at home.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

This pumpkin dessert recipe tastes like pie but looks like a no-bake cookie.

Science fair project that cultivates slime mold and monitors the stages of its development.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

Hiding protein-rich quinoa and a variety of fresh vegetables, these meatballs are the perfect answer to kid food woes.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Make this easy recipe for Halloween, featuring white chocolate and pretzels, for a crispy, creepy treat!

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Transform your kitchen table into a winter wonderland with a cookie and cocoa party that looks freshly dusted with snow.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

This activity spotlights everyone's favorite reindeer, Rudolph, and preserves your child's handprints in his "antlers".

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

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.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

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

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.