School learnersVary and explainExample · 4 steps · 8 min

Shadow and Sun Explorer

Read shadow lengths from a chart, scale them to other objects, measure a tree without climbing it, and explain winter and summer shadows.

Step 1
Step 2
Step 3
Step 4
Finish

Your example

Shadow of a 2 m pole

Sun height · Shadow length · m

A 2 m pole stands on the school yard. Its shadow at different sun heights: 20° gives 5.5 m, 35° 2.9 m, 50° 1.7 m, 65° 0.9 m, 80° 0.4 m.

Show data as a table

Sun height	Shadow length
20°	5.5
35°	2.9
50°	1.7
65°	0.9
80°	0.4

Step 1 of 4

In the morning the sun stands at 20°, at noon at 50°. How does the shadow of the 2 m pole change?

It gets 3.8 m shorter.It gets 3.8 m longer.It stays 2 m, like the pole.

Show a hint

Find the bars for 20° and 50° and subtract.

About this activity

What you practise: You read a chart with units, used the same factor for height and shadow, measured heights with shadows, and linked shadow length to the time of day and year.

A hand-written example with a fixed sequence. It shows what working on a Klarisma activity feels like; your own activities follow your goals and material.

An example with fictional data. Your answers stay on this page and are cleared when you restart or leave.

In the morning the sun stands at 20°, at noon at 50°. How does the shadow of the 2 m pole change? A 2 m pole stands on the school yard. Its shadow at different sun heights: 20° gives 5.5 m, 35° 2.9 m, 50° 1.7 m, 65° 0.9 m, 80° 0.4 m. At 20° the shadow is 5.5 m, at 50° only 1.7 m: 5.5 − 1.7 = 3.8 m shorter. The higher the sun, the shorter the shadow.