Observations and results
Were more of your volunteers right-handed than left-handed? If a person was right-handed, did they usually also use their right foot, eye and ear?
You probably already know that most people are right-handed. In fact, roughly 70 to 90 percent of people are right-handed. From this activity, you probably saw that most people who are right-handed are also right-sided overall. That is, they mostly prefer to use their right foot, eye, and ear as well. But there are certainly exceptions, particularly with eyes and ears—a right-handed person may prefer using their right foot and right ear, but prefer their left eye over their right one. Similarly, a right-handed person may prefer their right foot and eye, but prefer their left ear. You may have seen a similar trend with left-handed people. Because the majority of people who are right-handed are also right-footed, in some cases where a person writes with their right hand but prefers to use their left foot, they may have been predisposed to being left-handed but were raised to use their right hand.
Overall, whereas the vast majority of the global population is right-handed, it's thought that a smaller percentage is right-footed, an even smaller percentage is right-eyed, and yet an even smaller percentage is right-eared (perhaps a little over half), but this trend is unlikely to be visible using only five volunteers. Why might people have a weaker preference for an eye or ear that matches their dominant side? Perhaps one ear or eye is stronger than the other.
More to explore
Neuroscience for Kids, from Eric H. Chudler, University of Washington in Seattle
Science Experiments for Kids: Test Your Dominant Side, from Science Kids
What Does Handedness Have to Do with Brain Lateralization?, from M. K. Holder, Indiana University Bloomington
Are You Left- or Right-Sided?, from Science Buddies