<p>If the application specifies a certain date range (for example "9th through 12th grade,") it would be presumptuous to ignore their instructions. Most of the applications ask for a date you received the honor, so you generally can't just present the award without the date. If your applications do not require dates, you could go ahead and list them - no one would know they were from middle school. </p>
<p>You awards from middle school are impressive, so I can see why you would want to include them... You could use one of your short essays to discuss them and how they helped you achieve in high school... You could group them (Music, English language, Math... ) and include more recent accomplishments in those areas and give a date range rather than a specific date...</p>
<p>It isn't really a "disadvantage," but it is my impression that what you have been doing more recently will be given greater weight, and you don't want to appear as though you are trying to "pad" your resume with items from your pre-teen years. (Again, your accomplishments then are significant, so I can see why you want them included). If you do list those things, try very hard to connect them to what you are doing now, so it is seen as growth and passion and depth, rather than just hanging on to your "glory days."</p>