Clocks around the world are set at different times. This week, explore time zones to get ready for special time clues coming in March.

Neil Liddle/CC BY 2.0

The mounds of Amitermes meridionalis stand up to 13 feet tall in Australia. To control heat from the Sun, the tiny residents build them on a magnetic north/south line, like the needle on a compass. At sunset, their silhouettes are striking. What is your local time when the Sun is setting on these termite homes?

Looking for Clues?
This year's 10 Mystery Classes are located in seven different time zones. After any daylight saving time changes, they will be located in six different time zones.

Photoperiod Clues from the Mystery Sites

• Clues for February 17

Compare Your Photoperiod

• Google, "sunrise [my town] February 17, 2020" and then, "sunset [my town] February 17, 2020."
• Record and Graph
• Guiding Questions

Journal: It's Time to Ask Questions

Why are there 24 hours in a day? Why is the world divided into time zones? When you think about time, what questions come to mind? Use these time-related acronyms and sample questions to spark your thinking.

• Week #4