What can be used to observe materials up close?
magnification glass A hinged joint physical properties camouflage speedometers cloth-edged screens sensory nerve cells rulers
A B C D E F G H
What can be used to observe materials up close? (A) magnification glass (B) A hinged joint (C) physical properties (D) camouflage (E) speedometers (F) cloth-edged screens (G) sensory nerve cells (H) rulers