Elementary & middle school

Which everyday thing is closest in size?

Plastic pieces hide in water, air, and dust. Some are smaller than a hair. Some are as small as a virus. Match each piece to the everyday object closest to its teaching size.

1. Step 1

   Read the plastic

   You get its name and teaching size.

2. Step 2

   Tap the closest object

   Three everyday things. Only one is nearest.

3. Step 3

   Learn the scale

   Pictures are not to scale. The numbers are.

• 

  Water molecule

• 

  Microbead

• 

  Human hair

• 

  Ant

Illustration, not to scale. This chart calls pieces under 1 µm nanoplastics, and pieces from 1 µm to 1 mm microplastics.