Kits of components to build a functional Moisture Tester that can be used to tell if pot plants require water.
The kits contain all the electronic components required, except the PCBs, which are available separately. This provides the option to buy ready-made PCBs or for students to make their own.
The moisture tester project has been designed as an introduction for Key Stage 2 & 3 students to the use of resistors and transistors in circuits.
Students start by investigating the care of house plants and the problems
associated with incorrect moisture content of soil
Downloadable information and activity sheets then guide the students
through a series of exercises to build background knowledge in the use of
resistors and transistors in circuits
For manufacture, the project allows the teacher to select from two
alternative methods of circuit construction, either self adhesive copper tape
onto card or on a printed circuit board (available separately) see order code
Upon completion of manufacture students are then guided through an
evaluation of their work
They also have the option of producing a 3D model using high density
polystyrene foam illustrating how they might develop a final product if the
design were manufactured commercially
Project notes are available for free download and are designed to be
photocopied for class use
They include both detailed student and teacher notes, which contain
suggested lesson plans, mapping to the National Curriculum and a series of
structured homework assignments to support the work in class
The component kits are supplied in multiples of 5 and include:
All components including LEDs, battery clip, resistors and transistors
The project can be produced using PCB available or self adhesive copper
tape (see PCB products section)
I need to but the resistors and transistors that are in this kit.
Can you buy them separately?
A. Hi Sam, thank you for your question. Each kit has: 5 x 470 ohm carbon film (62-0362), 5 x 1k carbon film (62-0370), 5 x 1k2 carbon film (62-0372) all packs of 100 and 5 x BC548B transistor (81-0466).