## 01

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.

## 02

About when was sunrise and sunset yesterday?

## 03

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

## 04

In what seasons is daytime the shortest and the longest?

## 05

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

## 06

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.

## 07

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

## 08

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.

## 09

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

## 10

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

## 11

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

## 12

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

## 13

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

Great job!