BELL RINGERBELL RINGERGroup AGroup A

GrasshopperGrasshopper

DeerDeer

RobinRobin

BeaverBeaver

Group BGroup B

OwlOwl

OpossumOpossum

MothMoth

BatBat

WHY WERE THESE ANIMALS PLACED INTO THESE GROUPS?

A.One group is active during the day; the other group is active at night.B.One group lives near prairies; the other group lives near forests.C.One group benefits people; the other group is a pest to people.D.One group eats only plants; the other group eats only meat.

MicroscopeMicroscopeParts and FunctionsParts and Functions

77thth Grade Science Grade Science

What are the parts??What are the parts??

1.1. eyepieceeyepiece 7. objective7. objective

2.2. fine adjustmentfine adjustment 8. stage clips8. stage clips

3.3. course adjustmentcourse adjustment 9. arm9. arm

4.4. stagestage 10. base10. base

5.5. mirrormirror 11. nosepiece11. nosepiece

6.6. body tubebody tube 12. diaphragm12. diaphragm

EyepieceEyepiece

The eyepiece is the part of the microscope The eyepiece is the part of the microscope which you which you look throughlook through. .

It usually has its own magnification of 10x.It usually has its own magnification of 10x.

eyepiece

Fine AdjustmentFine Adjustment

This part of the microscope is used when This part of the microscope is used when changing changing small amounts of focussmall amounts of focus..

Fine adjustment

Course AdjustmentCourse Adjustment

Used when making Used when making large changes in focuslarge changes in focus on the microscopeon the microscope

Moves the body tube up and downMoves the body tube up and down

Course Adjustment

AdjustmentAdjustment

Some microscopes only have ONE Some microscopes only have ONE adjustment knobadjustment knob

If so, it is a course adjustment!If so, it is a course adjustment!

StageStage

Where slides are Where slides are placedplaced on the on the microscope microscope for viewingfor viewing..

Stage

Light Source/MirrorLight Source/Mirror

The light source/mirror is The light source/mirror is used to reflect used to reflect lightlight from a light source up through the from a light source up through the diaphragmdiaphragm

Mirror

Body TubeBody Tube

The body tube The body tube holds the eyepieceholds the eyepiece of a of a microscope and microscope and connects it to the connects it to the objectivesobjectives

Body Tube

ObjectiveObjective

The The magnifying lensmagnifying lens, comes in different , comes in different powerspowers

Objective

Stage ClipsStage Clips

The stage clips The stage clips hold the slidehold the slide in place in place

Stage Clips

ArmArm

The arm is used for The arm is used for safe transportationsafe transportation of of the microscopethe microscope

Arm

BaseBase

What the microscope uses to What the microscope uses to “sit” on“sit” on, also , also used for used for safe transportationsafe transportation

Base

NosepieceNosepiece

The nosepiece The nosepiece holds two or more holds two or more objective lensesobjective lenses and can be and can be rotatedrotated to to easily change easily change powerspowers

Nosepiece

DiaphragmDiaphragm

Used to Used to vary the amount of lightvary the amount of light which which passes through the passes through the slideslide

Usually better in lower amountsUsually better in lower amounts

Diaphragm

Label the PartsLabel the Parts1. Eyepiece

2. Course Adjustment

3. Fine Adjustment

4. Arm

5. Stage Clips

6. Base

7. Body Tube

8. Nosepiece

9. Objective Lens

10. Stage

11. Diaphragm

12.Light Source/ Mirror