Chemical formulas
For ages 13 to 16.

Twenty everyday compounds, name to formula and back.

What the sciences kits are

Biology, chemistry, physics, earth and space science, from primary science to university courses: processes in order, terms and their definitions, diagrams to label and click, calculations with units, and data read from tables and graphs. Some kits are made by rule (units, formulas, the periodic table); most are written from your own textbook.

Why they are built this way

Science is processes, structures and quantities, and each needs its own shape: a process is a sequence, a structure is a diagram to label, a quantity is a number with units and a tolerance. The kits use the shape the content needs, so a student is tested on what they know about the cell rather than on their reading of a stem.

How to use them

Use the sequence kits for cycles and mechanisms, the hotspot and labelling kits for anatomy and apparatus, and the numeric kits for calculations. Paste a chapter for questions in your course's own words. For revision, take the kits in study mode and let the re-tests space themselves.

Made by rule

This kit is made in code: every time it opens, the numbers, words or arrangements are drawn fresh from its rule, so the same kit taken twice is two different quizzes from one rule. There is no answer bank to find, and the practice never runs out. Each question carries its explanation, shown at once in study mode.

The shape: multiple choice

The workhorse of assessment: one right answer among plausible options, marked at once, comparable across every student. Written well, the wrong options map the misconceptions in the room.

EdProcto marks selection questions by rule the moment the answer is given. Several-answer shapes give credit for the part that is right when partial credit is on; negative marking takes one over the number of wrong options, so guessing earns nothing on average; a confidence rating earns a bonus when sure and right and a larger penalty when sure and wrong, so it pays only when it is honest. Options can be shuffled per student, and the analysis shows which wrong option beat the right one.

Taking it

Open it in study mode for the answer and the explanation after each question, and a retry of only what you missed. Switch to exam mode for the real conditions. It comes due again in a few days; the dashboard shows what is due and what you missed last time. Share it with a code for a class, print it as a paper, or host it on a screen for a room.