Lab Equipment – One of the basic tools for Scientists to explore and discover

Lab Equipment – One of the basic tools for Scientists to explore and

discover.

Beakera flat-bottomed

cylindrical container, usually with a pouring lip, to measure, mix, and prepare liquids.

Test Tubea hollow cylinder of

thin glass with one end closed, used for experiments in labs.

Flaska bottle, usually of

glass, having a rounded body and a narrow neck, used especially in laboratory experimentation.

Graduated Cylindera narrow, cylindrical

container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids.

Microscopean optical

instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye.

Test Tube HolderA plastic holder used

to hold test tubes or dry them.

Magnifying Glasslens that produces

an enlarged image of an object.

Hot HandsA set of protective

hand wear to use for hot lab equipment.

Microscope Slide and Cover Slip

A glass or plastic rectangular slide that is used for specimens to be looked at under a microscope.

A Cover Slip is used to place over the specimen on the Microscope Slide. This holds it in place.

Pipette or Droppera slender graduated

tube used in a laboratory for measuring and transferring quantities of liquids from one container to another.

Bunsen Burnera type of gas burner,

commonly used in chemical laboratories, with which a very hot, practically nonluminous flame is obtained by allowing air to enter at the base and mix with the gas.

Goggleslarge spectacles

equipped with special lenses, protective rims, etc., to prevent injury to the eyes from flying objects, bubbling liquid, or any other potential threat in the lab.

Glass Stirring RodA glass, cylindrical-

like stick that is used to mix solutions in a beaker. Also referred to as a “Swizzle Stick”

Triple Beam BalanceA triple beam balance is used to read the

mass of items. A triple beam balance has three beams: one with 100 gram increments, 10 gram increments, and 1 gram increments.

First make sure to calibrate the scale so that it reads zero when nothing is placed on the pan, with all weight to the left.

KNOW YOUR LAB EQUIPMENT

Study your notes and drawings on the lab equipment.

This is so vital when performing labs and reading procedure.

Let’s get to know the Microscope!

Science – 7th

Parts of a Microscope1. Eye Piece/Ocular- the piece that is looked

through, has a power of 10.2. Body Tube- skinny tube attached to the

eye piece that allows light to shine from the light source.

3. Nose Piece- rotates the objective lenses 4. Objective Lens (high, medium and low)

used to magnify the specimen on the stage.High power (longest lens = 40X) Medium power (middle lens = 10X)Low power (shortest lens = 4X)

Parts of a Microscope5. Stage- the slide is placed here.6. Stage Clips- holds the slide in place7. Aperture- hole in the stage that allows

light to pass through the specimen.8. Diaphragm- thin disk below the stage that

adjusts the amount of light needed.9. Legs/Base- holds the entire microscope

up.

Parts of a Microscope10. Light Source- provides light to see the

object.11. Course Adjustment- large knob that

brings the stage closer to the objectives. Focuses the specimen.

12. Fine Adjustment- smaller knob that fine tunes the image.

13. Arm- attaches the upper portion of the microscope to the base.

Parts of a Microscope14. Slide- the rectangular piece that holds

the specimen.15. Cover Slip- the plastic square piece that

covers the specimen.

Microscope Rules1. When carrying the microscope you must carry

it with the ARM and the BASE.2. The microscope must always be stored with

the lowest powered objective in place.3. When bringing an object into focus you must

use the lowest powered objective and the course adjustment.

4. ONLY use the FINE adjustment on the highest powered objective.

5. Lenses should only be cleaned with lens paper.6. The whole microscope must be kept away from

the edge of the lab table.

Creating a wet mount slide1. Obtain a slide2. Place the specimen on the center of the slide3. Place ONE or TWO drops of water ON the

specimen4. Take the corner of the cover slip and place it

near the drop of water and CAREFULLY lower the cover slip on to the water and specimen.

**IF you see perfectly round, white circles when looking through the eye piece THEN you are observing air bubbles.

** Slides and cover slips may be cleaned with water and a paper towel.

Parts of a Microscope