Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

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

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

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

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Science fair project that creates fog using bottles of hot and cold water.

Determine which metal has the highest rate of conductivity.

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

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

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

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

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.

In this science fair project, students examine how temperature affects sugar transport within a plant.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

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

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

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.