Next Generation Science Standards
NGSS.5-PS. PHYSICAL SCIENCE
5-PS1. Matter and Its Interactions - Students who demonstrate understanding can:
5-PS1-1. Develop a model to describe that matter is made of particles too small to be seen.
5-PS1.CC. Crosscutting Concepts
5-PS1.CC.2. Scale, Proportion, and Quantity
5-PS1.CC.2.1. Natural objects exist from the very small to the immensely large.