Onion cells under the microscope — Lab Scientist · Pretender
A fictional lab is running an open day. A free Lab Scientist mission in Pretender for ages 10–17, about 3 min, with hints from a guide.
🧪 All experiments here are on screen. Never mix or taste real substances without a teacher or trained adult.
Put in order · ~3 min
Your role
You're the lab scientist (in this game).
Your goal
Put the steps in order, from preparing the slide to a sharp image.
What you know
- Start focusing with the lowest-power lens: it shows a wide view and sits far from the slide.
Limits
- Iodine stains skin and clothes: gloves and goggles on.
Success looks like
- Safety — Protected before handling stain.
- Good slide — Thin, stained, no bubbles.
- Sharp image — Low power first, then zoom in.
Skills you used
- Planning — Turning a goal into steps.
- Responsibility — Knowing when to act and when to ask for help.
In real life
Biologists, lab technicians and hospital scientists prepare and stain slides every day. Following the same order every time is what makes results reliable and labs safe.
Lab Scientist
Ask questions and test them with fair experiments.
Explore next
- Doctor & Nurse — Care for people's health as a team.
- Environmental Engineer — Keep water, air and energy clean for everyone.
- Data Analyst — Turn numbers into honest answers.
Keep exploring
Other languages
Loading MyLeoNes™…