This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this project children practice the scientific method while playing with puffy paint.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

In this activity your child will create their very own marble maze!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Learn whether writing things down really makes things easier to remember.