Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This project concerns activity happening millions of miles away, on the sun.

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

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Check out is fun science fair project idea to learn about heat transfer and why certain insulating materials are more practical than others.

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

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

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

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.

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.

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.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

This science fair project idea investigates food preference of birds.

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

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

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

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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

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