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Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

How can you tell the difference between a spider and an insect? Your child will find out as he makes a tray of yummy creepy crawly snacks.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

This science fair project idea assesses the effect of music on work performance.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

This science fair project idea investigates how different disinfectants work in killing germs.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!