Printable Microscope Word Search

The parts of a microscope on one sheet with its key, from eyepiece to stage clips.

Name Date

Microscope Word Search

Find every word hidden in the grid. Words go across and down.

0 of 20 words found

IPENVRSDSTAINCI

HGDOILLUMINATOR

CNLSHDGCOMPOUND

OBJECTIVELENSDD

ARMPMSBTMHTACES

RMDIAPHRAGMFONP

SIDEOMCNGTNIVSE

ECECIPLGNBSNEEC

FRYEADICIOTERRI

OOEFSQPIFDAFSAM

CSPFXJSNYYGOLEE

UCILQNCTDTECILN

SOEVXRELPUNUPFD

OPCXCALSRBHSLIN

TEESISLIDEWGSEL

This grid is wider and taller than its box. Slide it to see every letter.To drag, hold the first letter for a moment, then slide.Keyboard: Tab to the grid, arrow keys to move, Enter on the first and last letter.

EyepieceEYEPIECE
Objective lensOBJECTIVE LENS
NosepieceNOSEPIECE
StageSTAGE
ClipsCLIPS
Coarse focusCOARSE FOCUS
Fine focusFINE FOCUS
DiaphragmDIAPHRAGM
CondenserCONDENSER
IlluminatorILLUMINATOR
ArmARM
Body tubeBODY TUBE
CompoundCOMPOUND
SlideSLIDE
Cover slipCOVER SLIP
SpecimenSPECIMEN
StainSTAIN
MagnifyMAGNIFY
MicroscopeMICROSCOPE
CellCELL

20 words from the Microscope Key Terms list.

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Answer key: Microscope Word Search

IPENVRSDSTAINCI

HGDOILLUMINATOR

CNLSHDGCOMPOUND

OBJECTIVELENSDD

ARMPMSBTMHTACES

RMDIAPHRAGMFONP

SIDEOMCNGTNIVSE

ECECIPLGNBSNEEC

FRYEADICIOTERRI

OOEFSQPIFDAFSAM

CSPFXJSNYYGOLEE

UCILQNCTDTECILN

SOEVXRELPUNUPFD

OPCXCALSRBHSLIN

TEESISLIDEWGSEL

EYEPIECE, OBJECTIVE LENS, NOSEPIECE, STAGE, CLIPS, COARSE FOCUS, FINE FOCUS, DIAPHRAGM, CONDENSER, ILLUMINATOR, ARM, BODY TUBE, COMPOUND, SLIDE, COVER SLIP, SPECIMEN, STAIN, MAGNIFY, MICROSCOPE, CELL

Next step Print the rest of the lab bench Type in the parts of your own class microscope

All 117 words

Parts of a Microscope 26

Aperture The hole or opening that limits the light passing through a set of lenses.
Arm The rigid support that the optical parts are attached to.
Body tube The part with the eyepiece set in its top end.
Clips The simple holders on the stage that keep a slide in place.
Coarse focus The large wheel, turned first to bring the specimen roughly into view.
Condenser A lens beneath the stage that focuses light from the lamp onto the specimen.
Diaphragm A thin part with an opening at its center that limits how much light gets through.
Eyepiece The lens nearest your eye; most often it magnifies ten times.
Filter A part some condensers include to manage the quality of the light.
Fine focus The smaller wheel, turned to sharpen the image at higher powers.
Foot The sturdy U-shaped bottom of a traditional microscope stand.
Frame The rigid structure of a microscope, where the focusing wheels are mounted.
High power The strongest of three objectives on a school microscope, focused with the fine wheel only.
Illuminator The built-in light of a microscope.
Iris An adjustable diaphragm: its opening can be made wider or narrower.

Show all 117 words (102 more)

Parts of a Microscope, continued

Lamp The adjustable light source of most microscopes, often a halogen one.
Low power The middle of three objectives on a school microscope, used after scanning.
Mirror On the simplest microscopes, the part that directs daylight up through the specimen.
Nosepiece The revolving part that holds the objectives and lets you switch between them.
Objective lens The optical part close to the specimen that collects its light; a microscope has about three.
Ocular With "lens", the name of the lens nearest your eye.
Pointer A line seen in the viewing field that moves when you twist the eyepiece.
Scanning The name for the lowest-power objective, about 4x, used to find the specimen first.
Stage The platform that supports the slide, with a hole in the center for light.
Turret Another name for the rotating holder of the objectives.
Wheel A round focus control you turn to move the stage up or down.

Kinds of Microscopes 24

Atomic force A scanning probe method that can resolve fractions of a nanometer.
Binocular Having two eyepieces, one for each eye.
Bright field The simplest lighting technique: white light shines up through the sample.
Comparison Two microscopes joined by an optical bridge, so that two objects are seen side by side.
Compound Describes a microscope in which one set of lenses enlarges the picture made by another.
Confocal An imaging technique in which a pinhole keeps out light that is not in focus.
Dark field A method that shows bright objects against an almost black background.
Digital Describes a microscope that sends its picture from a camera to a monitor.
Dissecting Describes a low-power microscope with two eyepieces, used for close work on a surface.
Electron A microscope lit by a beam of these particles in place of light.
Fluorescence The glow that one kind of optical microscope uses to form its image.
Inverted Describes a microscope with its light above the stage and its objectives below.
Loupe A small lens with no handle, kept right up at the eye.
Magnifier Any device that makes things look bigger; a convex lens with a handle is one.
Optical The oldest type of microscope, which uses visible light and lenses.
Petrographic Describes the microscope a geologist uses to identify minerals in thin slices of rock.
Phase contrast A technique that turns invisible shifts in light into changes in brightness.
Polarized The kind of light used in a number of optical microscope techniques.
Probe A physical tip that scans the specimen in one branch of microscopy.
Simple Describes a microscope that magnifies with a single lens or one group of lenses.
Stereo A low-magnification microscope with two optical paths, giving each eye its own view.
Transmission Describes the electron microscope whose beam passes through an ultrathin specimen.
Tunneling With "scanning", a microscope developed in 1981 that images surfaces at the atomic level.
X-ray Radiation that passes through most objects, used by one kind of microscope.

Using a Microscope 23

Adjust To change a setting a little, as with the diaphragm when the view is too dark.
Center To move the specimen to the middle of the view before raising the magnification.
Cover slip A smaller, thinner sheet of glass placed over the specimen.
Dye A coloring substance that makes cells and tissues easier to see.
Focus To make the image sharp; you start at the lowest magnification.
Image The picture formed by the lenses; a compound microscope gives an inverted one.
Label To write the name of each part beside your drawing.
Lens paper The special tissue for gently cleaning the glass of an eyepiece or objective.
Light What passes up through the hole in the stage to illuminate the specimen.
Magnify To make something look larger than it is.
Microtome A cutting tool that makes extremely thin slices.
Observe To look closely and notice details.
Oil immersion A technique that raises resolving power by immersing objective and specimen in a clear liquid.
Parfocal Staying in focus when you switch from one objective to another.
Rotate What you do to the nosepiece to select another objective.
Sample The material you examine under a microscope.
Section An extremely thin slice of material cut for viewing.
Sketch A quick drawing of what you see through the eyepiece.
Slide A thin flat piece of glass, about 75 by 26 mm, that holds the object to be viewed.
Smear A thin layer spread on a glass slide.
Specimen The thing being viewed, supported by the stage.
Stain A coloring added to a sample to raise its contrast.
Wet mount A slide made with the specimen in a drop of liquid under the cover glass.

Seeing Small Things 21

Animalcule An old word, Latin for "little animal", for a microscopic organism.
Beam A stream of light or, in some microscopes, of electrons.
Contrast The difference in brightness or color that makes an object stand out from its background.
Convex The shape of the lens in a magnifying glass.
Depth With "of field", the range of distances that look sharp at the same time.
Detail A small feature of an object.
Field of view The area you can see at one time; it gets smaller as you raise the magnification.
Focal length A measure of how strongly a lens brings light together or spreads it apart.
Histology The branch of biology that studies tissues under the microscope.
Hooke The English scientist whose 1665 book showed insects and plants as seen through lenses.
Leeuwenhoek The Dutch microscopist commonly known as the father of microbiology.
Lens A piece of glass or plastic that focuses a light beam by refraction.
Magnification How much larger a thing appears: the eyepiece power times the objective power.
Micrograph A picture taken through a microscope.
Micron A millionth of a meter, also called a micrometer.
Microscope An instrument for seeing tiny things; its name comes from Greek for "small" and "look at".
Microscopic Far too small for the naked eye to see.
Microscopy The technical field of viewing things too small for the naked eye.
Nanometer A billionth of a meter.
Optics The science of light and lenses.
Resolution The ability of an instrument to tell small features of an object apart.

Things to See Under a Microscope 23

Amoeba A single-celled organism that changes shape by extending and pulling back pseudopods.
Cell The basic unit of all life; most are visible only under a microscope.
Copepod A small crustacean that lives in almost every fresh or salt water habitat.
Cyclops A common freshwater crustacean named for its single large eye.
Daphnia A small crustacean commonly called a water flea for its jumpy swimming.
Diatom One of a large group of microalgae found in oceans, waterways and soils.
Elodea A water plant used in labs to show what goes on inside cells.
Flea A small flightless insect, about 3 millimeters long as an adult.
Hydra A small jellyfish-like freshwater animal that regrows a part that is cut off.
Microbe An organism of microscopic size.
Mold A structure some fungi form; its dusty, colored look comes from spores.
Nematode A roundworm; most species live free and feed on microorganisms.
Onion A vegetable whose clear skin, a single layer of cells, is often a student's first slide.
Paramecium A single-celled ciliate, often abundant in stagnant ponds.
Plankton Organisms that drift in water and cannot swim against the current.
Pollen A powdery substance made by flowers; each grain has a hard coat.
Pond water A living sample for a wet mount, viewed at 40x to 400x.
Rotifer A microscopic animal sometimes called a wheel animal.
Spirogyra Green algae named for the spiral arrangement of their chloroplasts.
Spore A unit of reproduction in fungi, algae and many plants, built to spread and survive.
Stomata Pores in the skin of a leaf that control gas exchange.
Tardigrade An eight-legged micro-animal also known as a water bear.
Volvox Green algae that live in ball-shaped colonies; one can hold 50,000 cells.

How this list was compiled: Own work: the word list and every clue were written for this page. The facts in the clues were checked on 2026-10-09 against English Wikipedia (CC BY-SA 4.0), chiefly the articles on the optical microscope (https://en.wikipedia.org/wiki/Optical_microscope), the microscope (https://en.wikipedia.org/wiki/Microscope), the microscope slide (https://en.wikipedia.org/wiki/Microscope_slide), the eyepiece (https://en.wikipedia.org/wiki/Eyepiece), the diaphragm (https://en.wikipedia.org/wiki/Diaphragm_(optics)), the stereo microscope (https://en.wikipedia.org/wiki/Stereo_microscope), the electron microscope (https://en.wikipedia.org/wiki/Electron_microscope) and magnification (https://en.wikipedia.org/wiki/Magnification), and against two teaching pages: Rice University, Light Microscopy (https://www.ruf.rice.edu/~bioslabs/methods/microscopy/microscopy.html) and The Biology Corner, How to Use a Microscope (https://www.biologycorner.com/worksheets/microscope_use.html). Licence: own work

How it works

This printable microscope word search opens on 12 parts, Eyepiece, Objective lens, Stage, Coarse focus and Diaphragm among them, and 8 lab words such as Slide and Specimen. Beakers, burners and balances are on the lab equipment word search.

Read the full guide

Parts, kinds and slide making

Parts of a Microscope, under Start from a list, has 26 words, from Nosepiece and Condenser to Arm and Body tube. Kinds of Microscopes has 24, among them Compound, Stereo, Electron and Confocal. Using a Microscope has 23 for the lab itself: Specimen, Cover slip, Wet mount, Stain and Parfocal.

What the lenses show

Things to See Under a Microscope has 23 words, such as Paramecium, Tardigrade, Volvox, Pollen and Stomata. Seeing Small Things has 21 on magnification and resolution, with Micron, Nanometer, Hooke and Leeuwenhoek.

Two-word parts are hidden with no gap, so pupils look for OBJECTIVELENS, COARSEFOCUS and BODYTUBE.
Hard Microscope, with 41 words of nine letters or more, suits a class that already knows the parts.

Questions and answers

What are the parts of a microscope?

A light microscope has an eyepiece, a revolving nosepiece that holds the objective lenses, coarse and fine focus, a stage for the slide, a light source, and a diaphragm and condenser under the stage. A rigid arm carries them all.

How do you calculate total magnification?

Multiply the power of the eyepiece by the power of the objective lens in use. A 10x eyepiece over a 40x objective gives 400x.

What is the difference between coarse and fine focus?

Coarse focus is the larger wheel: turn it first, at the lowest power, to bring the specimen into view. Fine focus is the smaller wheel: it sharpens the image, and at high power it is the only one to turn.

Is the image in a microscope upside down?

In a compound microscope, yes: the image is inverted. The objective lens forms an image inside the microscope, and the eyepiece magnifies that into the enlarged, inverted image the viewer sees.

Does the microscope word search print with an answer key?

Yes: the puzzle is one sheet of Letter or A4 and the key, with each word ringed, is the next. Tick Show clues, not words and Stage prints as "The platform that supports the slide, with a hole in the center for light."

All 117 words

Parts of a Microscope 26

Parts of a Microscope, continued

Kinds of Microscopes 24

Using a Microscope 23

Seeing Small Things 21

Things to See Under a Microscope 23

How it works

Parts, kinds and slide making

What the lenses show

Questions and answers

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