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!

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

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.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

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.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

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

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

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

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.

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.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

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.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

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.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

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

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

This science fair project investigates how temperature of a room affects the burn rate of a candle.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

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