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What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

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

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

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

Science fair project that designs a video game that requires players to use relevant skills.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

This science fair project idea explores the different properties & interactions of sugar molecules.

Take the plunge into handcrafting with this neat and tidy soap recipe. Here's how to create your own personalized soap.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

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

Learn with makes water molecules work with this fun and easy science activity!

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

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 determines effective strategies to help students stay awake and attentive.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.