Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

In this activity, your child will be challenged to make a tower using paper cups.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

Cleaning can be a chore, but not with this sudsy experiment!

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

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

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

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

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?