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

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

These cute holly-shaped hair clips are a breeze to make for holiday celebrations. They make a great party activity, too!

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?

This project examines how temperature affects the volume of gas in balloons.

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.

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

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

This project explores what happens to a rubber band when it is heated and cooled.

Examine the connection between temperature and chemiluminescence.

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).

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

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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.

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 science fair project idea tests the effect of heat- at varying temperatures- on the viability of biological enzymes.

Here is an activity that your kids can make for Mother's Day, a garden pot filled with edible "flowers".

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

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

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

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

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

The objective of this experiment is to evaluate the effects of acid rain on plants.