Year 4A - Smart Irrigation System

What is the main purpose of the Smart Irrigation System?

• A. To clean the air

• B. To water plants only when needed

• C. To give light to plants

• D. To grow flowers quickly

Which component checks if the soil is dry or wet?

• A. Water pump

• B. Arduino

• C. Soil moisture sensor

• D. LED light

What does the water pump do?

• A. Sends water to the plants

• B. Measures soil moisture

• C. Powers the system

• D. Shows data on the screen

Which part is known as the "brain" of the system?

• A. Water pump

• B. Arduino Uno

• C. Transistor

• D. Hose

What do jumper wires do in the system?

• A. Water the plants

• B. Show the temperature

• C. Connect parts together

• D. Power the pump

What does the red LED mean?

• A. The soil is dry

• B. The plant is too cold

• C. The water is boiling

• D. The system is off

What does the green LED mean?

• A. The soil is dry

• B. The soil has enough water

• C. The battery is low

• D. The sensor is broken

How does the system decide when to water the plants?

• A. By the time of day

• B. Based on the soil moisture reading

• C. Using a camera

• D. When someone presses a button

What part carries water from the pump to the plants?

• A. Jumper wires

• B. Hose

• C. Battery

• D. LED

What powers the system when there is no electricity?

• A. Soil sensor

• B. Battery and charger

• C. Water pump

• D. Transistor