<p>Taking SAT in 8th grade is quite reasonable.
The score won’t stay and follow your records unlike the SATs taken after 9th grade.
Many 6th and 7th graders take SAT and/or ACT to qualify for programs like JHU CTY, NU CTD, EPGY and fellowships.
However, if you do a practice SAT test and the score is much below CTY program requirements, it may not be worthwhile.</p>