Yes, you are correct. "D" is the correct answer because creating a new science project with groups of 3 or 4 children is not a transition activity. Transition activities are meant to help children move from one activity or setting to another smoothly, while keeping them engaged and focused. Options A, B, and C all involve transition activities - giving a 5-minute warning, having children form a train or a dragon, and singing a song during clean-up. These activities help prepare children for upcoming changes or smooth out the transition between activities.