WAEC Practicals Without a Laboratory: How to Prepare

Some students will hold a burette for the first time only weeks before the exam. If your school has no working laboratory, WAEC practicals can feel like a paper you were set up to fail. It is hard, and it is not fair. It is also not hopeless. Much of what these papers test is careful habit: reading a scale, recording a table, drawing a clean graph, saying exactly what you saw. You can train many of those habits with very little.

First, know what you are preparing for

Physics, Chemistry and Biology each have a third paper. WAEC's 2026 timetable for private candidates lists each one as "Alternative to Practical Work". School candidates usually sit it as a practical with apparatus or specimens, under supervision.

The shortage of laboratories is real, and it is not new. In 2017, the then governor of Katsina State said only 123 of the state's 432 secondary schools had science laboratories. By our count, that left about 7 in every 10 schools without one. Many schools elsewhere face the same problem.

Read what the examiners say

Every year WAEC's Chief Examiners write down what candidates got wrong. Their reports are free on WAEC's e-Learning site, and an hour with them will teach you more than any summary. Here is what the 2023 reports said.

• Biology: candidates left out the magnification, labelled with lines that were not ruled, and wrote differences they learnt in class instead of what they could see on the specimen in front of them.
• Chemistry: candidates changed their titre values to match the teacher's, used wrong units, and mixed up decimal places with significant figures.
• Physics: candidates chose poor scales, used the wrong pencils and instruments for graphs, and could not read meaning from their graphs.

"not including the magnification of the diagram;" WAEC Chief Examiner's report, Biology Paper 3, 2023

The scores show the cost. In 2023, 1,068,564 candidates sat Biology Paper 3, and the average raw score fell from 36 the year before to 29. By our sum, that's a drop of almost a fifth in a single year.

None of these mistakes needs a laboratory to fix. All of them can be trained at home or in class.

Then talk to your school

Do this early, as a class if you can. Ask when the practical is, what the school plans, and if there can be at least one hands-on session before the exam. WAEC's own Chemistry report asks for more practical activities before the WASSCE begins. Some schools borrow time in a neighbouring school's laboratory. Parents can help push for this through the PTA.

Everything below is preparation for that day. It does not replace it.

What to train, subject by subject

Each subject asks for a different habit, so give each its own session.

Physics: train your hands and your tables

Physics practicals usually mean taking readings, tabulating them and plotting a graph. You can practise this at home with a simple pendulum.

Tie a small padlock to a length of thread and hang it from a door frame. Measure the length from the point where the thread is held to the middle of the padlock, and set it to 20 cm. Pull it a little to one side, keeping the swing small, and release it. Use your phone stopwatch to time 20 full swings, each one there and back. Divide by 20 to get the time for one swing, T. Repeat for 30, 40, 50 and 60 cm. Then plot T squared against length.

If you did it carefully, your points will lie close to a straight line through the origin. That is the physics: the time of a pendulum depends on its length, not on how heavy the padlock is.

While you do this, practise what the examiner looks for:

• A table with clear headings and units
• Readings given to the same number of decimal places
• Graph axes labelled, with units and a sensible scale that uses most of the page
• A straight line of best fit, not a line joining dots
• Precautions written as what you did, such as avoiding parallax by keeping your eye level with the scale

Use a large triangle when you find the slope, and show your working.

Chemistry: learn the reading and the reasoning

Do not try chemistry experiments at home. Acids and unknown chemicals need supervision, and the American Association of Chemistry Teachers says any activity done at home must be under adult supervision. Most of what you can train here happens on paper.

For titration, learn to read a burette at the bottom of the meniscus and record to two decimal places. WAEC's examiners listed exactly this as a strength in 2023.

"record burette readings to two places of decimal;" WAEC Chief Examiner's report, Chemistry Paper 3, 2023

Draw the table of initial reading, final reading and volume used, again and again, until it is automatic. Then practise picking the titres that agree and finding their average. Record what you actually read. Changing your figures to match someone else's is one of the faults the examiners named.

For qualitative analysis, take questions from past papers and write three columns: test, observation, inference. Train yourself to write what you saw first, and your conclusion second. "Gas turns lime water milky" is an observation. "CO2 is given off" is the inference. Mixing the two costs students marks they already know.

Biology: your eyes and a sharp pencil

Biology needs the least equipment. Your yard has specimens: a hibiscus flower, a maize grain, a bean seed, a leaf, a grasshopper if you can catch one.

Draw one each week and follow the rules:

• Use a sharp pencil, with clean single lines and no shading
• Make the drawing big enough to see the parts
• Label with ruled straight lines that do not cross
• Give it a title
• State the magnification, which is the drawing's length divided by the specimen's length

Then write down two features you can actually see and what each one does. Describe the specimen in front of you, not the one in your textbook.

Where a virtual lab helps, and where it does not

The hardest things to get without a laboratory are the steps themselves, such as setting up apparatus, doing a titration in order, and using a microscope. That is what a virtual lab can give you practice in.

Research gives a careful answer on how well this works. A 2023 review of 35 studies found no overall advantage of real over virtual investigations for understanding science ideas. But most of those studies were in physics, and few measured hands-on skills. So a virtual lab is good for understanding and for knowing the steps. It does not train your hands the way real apparatus does.

The Virtual Lab on Scholarleveling has 149 practicals across science, maths and accounting that run on a phone, with no apparatus or chemicals. You set up on screen, take the readings, fill the table, draw the graph and write the answers. It is then marked like WAEC, with a report explaining the marks you lost. You can use Practice mode with hints, a Timed mode, or a Mock exam, and the figures change on each attempt, so a student cannot simply copy a friend. The first practical in each subject is free to try, and teachers can use the lab free with a whole class in a live lesson.

Be clear on what it is. It is not run by WAEC, and it does not replace holding a real burette. If you can get any time with real apparatus, take it. A virtual lab is a way to know the steps, the tables and the mistakes before that day comes.

A simple routine

Give practicals two short sessions a week from now until your exam. One session is hands-on, doing a home activity or a virtual practical. The other is on paper, with one past question under time. Mark it using the examiner's comments.

Do that for a few months and the paper will look far less strange when it lands on your desk. Students in schools with big laboratories still lose marks for missing units and untidy graphs. Those marks are open to you too.

Read next: past questions vs textbooks for WAEC and JAMB, or an SS3 study plan for WAEC and JAMB.