Lesson 5: Composting

Lesson 3: Tree Health

Healthy vs stressed trees

Learn by watching, doing, uploading and reflecting

Learn how to look at a young tree and decide if it is healthy or stressed.

A healthy tree usually has green leaves, new growth, a firm stem, healthy bark and strong roots. A stressed tree may show yellow or brown leaves, wilting leaves, no new growth, insect damage, dry soil, weak stems or damaged bark.

Look carefully at the leaves
Check for new growth
Check if the stem is strong and upright
Look for insect damage
Check the bark for wounds or cracks
Look at the soil
Think about water, sunlight, space and protection
Do not only say “the tree is sick”
Say what you see and what may have caused it

Step 1. Click here to Watch
Learn the method step by step in the video.

Step 2. Do

Click here to start the Quiz - Answer 5 questions

Step 3. Upload here

Show your practical work with photos and earn points.

You can upload:

a photo of a healthy tree
a photo of a stressed tree
a photo showing yellow leaves, insect damage, dry soil or weak growth
a short video explaining what you see
a drawing or written observation if you do not have a tree nearby

Step 4. Reflect

Write what you learned. Upload your reflection and AI will check your answer.

You can answer these questions:

What signs did you see on the tree?
Do you think the tree is healthy or stressed?
What could be causing the problem?
What action would you take first to help the tree?

Complete all 4 steps and grow your score.

Excellent practical work can earn bonus points.