In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

How powerful is the reaction between baking soda and vinegar? Find out here!

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

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

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.

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.

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!

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

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

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.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

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.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

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!

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

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