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Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

Do you think heat can affect a plant's growth rate?

This science fair project idea investigates whether plants can survive being frozen.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea investigates how images are influenced by changes in light.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This science fair project idea investigates how magnetism can defy the force of gravity.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Want to get your bookworm interested in science? Check out this cool activity that teaches kids how to write science fiction!

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science fair project idea explores substances that cause a bubble to last longer.

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project investigates how temperature of a room affects the burn rate of a candle.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.