7 PSLE Science OEQ Mistakes That Lose Marks
Part 1 of 3 of the PSLE Science OEQ Guide: writing the answer is its own skill, and it is rarely taught. Here are the seven ways marks go missing in Booklet B.
You can know the science concept and still lose the mark. The concept stayed in your head and never reached the paper.
Expressing that concept in an answer is its own skill, and it's rarely taught on its own. Most practice is about learning the science concept. Much less of it is about writing the answer. So when marks go missing, it's hard to know what to change.
Here are seven common ways it happens.
New to Booklet B? The guide's front page explains what the paper is and how the three parts fit together.
Use the marks as a guide to detail
Start with what the question asks: a name, a comparison, a reason, or evidence from the results.
The marks give you a clue to the detail needed. They do not tell you exactly how many sentences or facts to write. One explanation may need several linked ideas; two unrelated facts may still leave the question unanswered.
Before moving on, check that you have answered every part of the instruction and made the relevant science clear.
You can use your own words if the meaning is accurate. The worked answers in this guide are teaching examples, not official PSLE marking schemes.
The seven, in the order they happen
- Misreading the command word · a description where the question asked you to explain
- Missing the question's conditions · the one thing the question fixed is the piece of science it is testing
- Restating the question · the answer reads well and adds no science concept
- Missing the cause-and-effect chain · two true facts with nothing linking them
- Answering the topic instead of the question · a true fact that never uses anything from this question
- Leaving out requested evidence · a conclusion without the supporting results the question asked for
- Vague words where science words are needed · "the water disappeared"
Next time you meet an open-ended question, keep these seven in mind. Start with the one above that sounds most like your own answers, and come back for the next when you meet it.
If you want to try this on real questions, MCQ.SG marks open-ended questions point by point and gives feedback on every answer.
For more tips on improving your answers—from avoiding common mistakes to using precise science language—explore the complete PSLE Science OEQ Guide.