To convert centimeters to meters, we need to know that 1 centimeter is equal to 0.01 meters. Therefore, to convert 0.2 centimeters per second to meters per second, we use the following calculation:
\[ 0.2 , \text{cm/s} = 0.2 \times 0.01 , \text{m/s} = 0.002 , \text{m/s} \]
So, the speed of small earthworms in meters per second is 0.002 meters per second.