Sofie wants to light the path near her campsite for safety. Help her set a lamp to be on at night when it’s dark.

About when was sunrise and sunset yesterday?

About how many hours of daylight do we have this month?

In what seasons is daytime the shortest and the longest?

Build a lamp to illuminate the path by Sofie’s campsite at night when it’s dark.
Decide how long it should be lit.

Graph the average hours of daylight each month for a full year and then identify the average number of hours it is dark during your assigned month.

Program your lamp to light the path for the average number of nighttime (darkness) hours in your assigned month.

Use your model and graph(s) to explain how the length of daylight and the time the sun rises and sets change throughout the year.

Use your model and graph(s) to explain what patterns you notice.

How long is nighttime (darkness) during your assigned month?

Add a path and trees to expand Sofie’s campsite.

Then test the model and program to make sure the lamp illuminates the path at night when it’s dark.

Change the model and program to improve the lamp and test again.

Great job!