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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.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

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

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

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

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

This simple experiment serves as an introduction to the greenhouse effect.

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

Explore the wattage of microwaves in relevance to cooking time.

This cookie dough handles like molding clay, but also makes delicious cookies. Use this activity to strengthen your child's alphabet skills.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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

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.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

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

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

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

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

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

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

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

If you're looking for a fun way to have your child gain practice pattern-making while working out fine motor skills, making Washi eggs is the perfect activity.

This experiment investigates if stress alters body temperature.