Shells and Snowflakes (Warm-up 9/12-13/11)

How can we distinguish between living and nonliving things, such as a radiolarian and a snowflake? A radiolarian is a tiny living thing that is covered with a glasslike shell and lives in the ocean. A snowflake is a crystal made of frozen water.





1. What are some similarities between the snowflake and the glass shell of the radiolarian?
2. What are some of the differences between the snowflake and the glass shell?
3. Would you classify the shell as a living thing or a nonliving thing? Explain your answer.