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Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Give your science savvy kindergarten a lesson in plant science with this fun carnation experiment.

This tactile activity helps kindergarteners learn about texture.

Who says snow globes are just for winter? Help your child create a summer version with this fun art project!

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Take the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

This science fair project idea investigates which objects float and sink in honey, water, and oil.