WHAT DOES A PLANT NEED?
ULTRON.INOV SCHOOLS

Project guide · Students · A lesson + ongoing observations

LEARNING GOAL
Collect observations and use measurements to describe changes in soil moisture.

MATERIALS
- A plant in a container
- A soil moisture sensor and compatible controller
- A notebook or a simple data table

ACTIVITY
1. Observe your plant and record the conditions around it. Decide what you want to measure.

2. Check your sensor with dry and damp soil. Record how the readings differ.

3. Take readings at consistent intervals. Add notes about watering and visible changes.

4. Create a chart and discuss patterns. Explain what the sensor can tell you and what it cannot.

REFLECT
- How did the readings change after watering?
- What could make your measurements inconsistent?
- What else would you measure to understand plant health?

EXTENSION
Add a temperature sensor and compare changes in moisture and temperature.

CLASSROOM NOTE
Use age-appropriate equipment and supervision. Follow the manufacturer’s instructions, disconnect power before changing connections, and keep liquids away from electronics.