1_MicroscopeMania

Procedure:

Read the directions for each section on the cards provided at each station. Write all answers on this worksheet! Do not make any marks on the materials at each station!

BE CAREFUL WITH THE MICROSCOPES! THEY ARE EXPENSIVE PIECES OF EQUIPMENT, NOT TOYS.

STATION #1: SOLVE THE MYSTERY

Microscope Mania!!! Modified from T. Trimpe 2003 http://sciencespot.net/

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STATION #2-3 : SELECT-A-SLIDEa. What should you do before viewing a slide? _______________________________________ b. Which objective provides the highest magnification - short, medium, or long? ____________ c. What is the warning? _________________________________________________________

HIGH POWERMEDIUM POWERLOW POWER

Hint: Try to draw what you see accurately!Draw the outline of the big shapes first, THEN add in extra details and shading if needed.Draw what you see to SCALE as best as you can!

NAME:___________________

Procedure:

Read the directions for each section on the cards provided at each station. Write all answers on this worksheet! Do not make any marks on the materials at each station!

BE CAREFUL WITH THE MICROSCOPES! THEY ARE EXPENSIVE PIECES OF EQUIPMENT, NOT TOYS.

STATION #4: POND WATER CRITTERS

1. Read the station cards to answer the following questions:a. What is the name of the piece that is used to cover the drop of water? __________________ b. Which objective should be used first - low, medium, or high power? ___________________ c. What do you need to do when you are done at this station? ___________________________

2. After you have viewed a few drops of pond water, write at least two sentences to summarize your observations. Be sure to describe the organisms you were able to identify.

Microscope Mania!!!

STATION #6: MICROSCOPE BASICS

Activity How do you think you did? How many cards did you earn?

#1 Vocab Challenge

STATION #5: MICROSCOPE PARTS

Label the parts of the microscope.

Station 1 Mystery Pictures

What is it?

Study the mystery photos and try to identify each one!

HINT: They are all common objects that might be found in your home or a

classroom.Write your guesses for the mystery items

in the Station 1 section of your worksheet.

Microscope Mania - Mystery Picture Cards

T. Trimpe 2003 http://sciencespot.net

#1 It’s a sweet picture! #2 It’s for the kids!

#3 You probably have one! #4 You can find these in my room!

#5 It could be a tongue twister! #6 It’s the tops!

#7 It’s not “safe” to play with this! #8 It has a rough job!


#9 It’s just a game! #10 You may need onewhen you get home!

#13 They aren’t musical scales! #14 Pucker up!

#11 Sharp supplies! #12 These don’t sing!

#15 Make your world colorful! #16 Full of “bits” & pieces!


#17 I could be a joker! #18 You might need a pair of me!

#19 Keep it straight! #20 You can count on me!

#21 You can “write” on me! #22 Mistakes are my job!

#23 Sale = 4 for $1.00 #24 You’ll need me before you hit the greens!

Mystery Pictures Answer Key

1. Creme Saver (peach)2. Wheel on a Hot Wheels car3. Metal band on a pencil4. Thumb tack5. Seashell6. Tab from a Soda Can7. Safety pin8. Nail file9. Red checker10. Key11. Staples12. Crackers13. Wing of a monarch butterfly14. Jolly Rancher candy (apple)15. Crayon16. 3.5” Floppy disk for a computer17. Playing card18. Die19. Straight pins20. Calculator buttons21. CD22. Chalkboard eraser23. Quarter24. Green golf tee


Station 2-3 Select-A-SlideHow do I use it?

Let’s learn how to view a slide ...

(1) Select a slide and set it on the STAGE making sure the specimen is centered over the OPENING in the stage. Carefully anchor it in place using the STAGE CLIPS.

(2) Rotate the NOSEPIECE to center the LOWEST power OBJECTIVE lens (shortest objective) over your specimen.

(3) While looking through the eyepiece, rotate the large COARSE adjustment knob to get your specimen in view. Use the small FINE adjustment knob to SHARPEN the image and make it clear.

(4) To increase magnification, rotate the NOSEPIECE to center the next largest OBJECTIVE LENS (middle-sized objective) over your specimen. You may need to use the FINE adjustment knob to sharpen the image.

(5) To view your specimen under the highest magnification, rotate the nosepiece to center the LARGEST objective lens (longest objective) over your specimen. You may need to use the fine adjustment knob to sharpen the image.WARNING: Be careful using the COARSE adjustment knob with the HIGHEST power objective! Always watch the stage from the SIDE to make sure the slide doesn’t touch the objective LENS.

Choose one specimen and draw it as it appears in three different powers of magnification. Answer all of the questions in the Station 3 area of your worksheet.

Done? Be sure to clean up your area and put away your materials!

Station 4 Pond CrittersWhat are they?

Let’s learn how to make a wet mount slide ...

(1) Place ONE drop of pond water in the middle of a clean slide.

(2) Place a COVER SLIP on one side of the drop of water and slowly lower it over the drop of water.

(3) Place the SLIDE on the STAGE making sure the specimen is centered over the OPENING in the stage. For pond water samples, you do not need to anchor the slide with a stage clip. This will allow you to move the slide around for viewing.

(4) Rotate the NOSEPIECE to center the LOWEST power OBJECTIVE lens (shortest objective) over your specimen.

(5) While looking through the eyepiece, rotate the large COARSE adjustment knob to get your specimen in view. Use the small FINE adjustment knob to SHARPEN the image and make it clear.

(6) To increase magnification, rotate the NOSEPIECE to center the next largest OBJECTIVE LENS (medium-sized objective) over your specimen. You may need to use the FINE adjustment knob to sharpen the image.

(7) To view your specimen under the highest magnification, rotate the nosepiece to center the LARGEST objective lens (longest objective) over your specimen. You may need to use the fine adjustment knob to sharpen the image.

WARNING: Be careful using the COARSE adjustment knob with the HIGHEST power objective! Always watch the stage from the SIDE to make sure the slide doesn’t touch the objective LENS.

Use the pond water guides to help you identify the organisms you see in your samples. Answer all of the questions in the Station 4 section of your worksheet.

Station 5 Microscope PartsWhat is this part?

Parts of the Light Microscope

T. Trimpe 2003 http://sciencespot.net/

A. EYEPIECEContains the OCULAR lens

J. COARSE ADJUSTMENT KNOB

Moves the stage up anddown for FOCUSING

I. FINE ADJUSTMENT KNOB

Moves the stage slightly to SHARPEN the image

G. BASESupports the MICROSCOPE

D. STAGE CLIPSHOLD the slide in place

C. OBJECTIVE LENSESMagnification ranges from

10 X to 40 X

F. LIGHT SOURCEProjects light UPWARDS through the diaphragm,

the SPECIMEN, and the LENSES

H. DIAPHRAGMRegulates the amount of LIGHT on the specimen

E. STAGESupports the SLIDE

being viewed

K. ARMUsed to SUPPORT the

microscope when carriedB. NOSEPIECEHolds the HIGH- and LOW- power

objective LENSES; can be rotated to change MAGNIFICATION.

Power = 10 x 4 = 40 Power = 10 x 10 = 100 Power = 10 x 40 = 400What happens as the power of magnification increases?

Station 6 Microscope BasicsWhat does this do?

Vocab ChallengeChallenge the other students in your group to correctly match all the cards in the shortest amount of time.Vocab Challenge Rules:(1) You may lay out one half of the cards (such as all the terms). The other half (such as all the definitions) should be shuffled and placed in one pile on the table in front of you.

(2) Have one student choose a card from the stack, and read the information. The other students must choose which is the correct matching card on the table. The first student to choose correctly gets the card.

(3) The next person now chooses a card from the stack. Continue until all the cards are gone. Record how many cards you earned.

(4) If you finish early, PLAY AGAIN!

Vocab Challenge Cards for Station 5

Extra time? Work on your puzzles or study for your microscope quiz!


EYEPIECE This part allows you to view the image on the stage and

contains the ocular lens.

NOSEPIECE This part holds the objective lenses and is able to rotate to

change magnification.

OBJECTIVE LENSESThese are found on the

nosepiece and range from low to high power.

STAGE CLIPS These are used to hold a slide

in place on the stage.

LIGHT SOURCEProjects light upwards

through the diaphragm to allow you to see the specimen.

NOTE for the Vocab Cards: If you would like the cards to be “self checking”, code the back of the cards with the same letter or number. Students can check the matches easily by comparing the backs of the cards. Be sure to inform the kids that “no peeking” is allowed and all cards must be face up at the start of a game.

Vocab Challenge Cards for Station 5 (cont!d)



ARM This part on the side of the

microscope is used to support it when it is carried.

COARSE ADJUSTMENT KNOB

This part moves the stage up and down to help you get the

specimen into view.

FINE ADJUSTMENT KNOB

This part moves the stage slightly to help you sharpen or “fine” tune your view of

the specimen.

DIAPHRAGM

This part of the microscope helps you adjust the amount

of light that reaches the specimen

BASE The bottom part

of the microscope.

Vocab Challenge Cards for Station 5 (cont!d) + Labels for Microscope Diagram



STAGE Part of the microscope that

supports the slide that is being viewed

COVER SLIP Name for the small plastic or

glass piece that is used to cover a water drop on a slide.

SLIDE Small glass plate on which specimen are placed for viewing

POWER Refers to the degree of magnification for a lens

EYEPIECE(OCULAR LENS)

COARSE ADJUSTMENT KNOB

LIGHT SOURCE

STAGE

BASE

FINEADJUSTMENT KNOB

ARMSTAGE CLIPS

DIAPHRAGM

NOSEPIECE

OBJECTIVE LENSES

Station 5Labels for

Parts & Pieces game

1_MicroscopeMania

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