Download images
The images are displayed in the order in which they were tested for comprehension.
- Series collection PNG 3700px x 1800px
- Image 1 PNG 1800px x 1800px
- Image 2 PNG 1800px x 1800px
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
For preschoolers, an adult should be close enough to touch the child.
The images are displayed in the order in which they were tested for comprehension.