How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

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

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

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

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

This science fair project idea determines which flower lasts the longest.

Encourage imagination and creativity with this magical craft that lets your child make and design his very own dragon egg.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This experiment will explore the best way to create a perfect soft-boiled egg.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

Help your preschooler create ice cube bead necklaces to cool off while practicing gross motor skills and sequencing, and discussing states of matter.

Preschoolers are fascinated by how colors can be mixed to form new ones. This activity combines color mixing with the concept of melting for extra science fun.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

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.

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?