This science fair project idea identifies clouds as a means of predicting the weather.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science fair project idea researches the effects of acid rain on plant growth.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea examines the reason boats are shaped and engineered.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Explore if planting seeds in a certain direction will affect how fast it germinates.

Construct and experiment with a periscope using reflected light rays to gather an image.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

In this project students experiment with making music using only glasses of water.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Discover whether a metal will expand under hot water.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Pair a planetarium visit with this fun art project that mimics the look of far-off galaxies.

Find out whether matte or shiny nail polish lasts longer.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Do different types of oil mix or stack? Find out in this science fair project idea!