MICROSCOPE MANIACarolyn HaydenCeci MaguireSt. Martha School Louisville, KY

Objectives

0Students will identify the basic parts of the microscope and describe the function of each.

0Students will demonstrate the proper procedure for viewing a prepared slide at different powers of magnification.

0Students will demonstrate the proper technique for making a wet mount slide and viewing it at different powers of magnification.

0Students will contrast low power and high power magnification.

0Students will discover the similarities and differences between animal and plant cells.

Essential Questions

0How are cells important to the structure and function of living things?

0How do microscopes contribute to our knowledge about living things?

PRELIMINARY ACTIVITIES

0Parts of a microscope.

0General procedures.

MI CROSCOPE MANI A Name______________ Station 1: Mystery Pictures 1. ______________ 9. ______________ 17. ______________ 2. ______________ 10. ______________ 18. ______________ 3. ______________ 11. ______________ 19. ______________ 4. ______________ 12. ______________ 20. ______________ 5. ______________ 13. ______________ 21. ______________ 6. ______________ 14. ______________ 22. ______________ 7. ______________ 15. ______________ 23. ______________ 8. ______________ 16. ______________ 24. ______________ Station 2: Make I t Simple

1. Complete the chart to show your observations using the water drop and hand lens.

Lens Observations Distance f rom Page

Single Drop of Water

Two Drops of Water

Three Drops of Water

Hand Lens

2. What do you predict would happen to the magnifi cation if you used more drops of water? Why? 3. How does the view of the “e” with the hand lens compare to the water lens?

Station 3: Select- A- Slide 1. Read the station card to answer these questions: a. What should you do bef ore viewing a slide? ____________________________ b. What is the magnifi cation of the high power objective?___________________ c. What is the warning? ____________________________________________ 2. View some of the prepared slides and then select one to draw. Draw a view of this specimen at three diff erent powers of magnifi cation in the circles below. Label each drawing on the right with the name of the specimen and the power of magnifi cation.

3. How does the view of the specimen compare as the power of magnification increases? Write at least one sentence that summarizes your observations.

Station 6: Scope Basics

Ratings: = Great = OK = Poor

Activity Rating Best Time #1 – Vocab Challenge #2 – Parts & Pieces #3 – SMART Scope NA

Station 7: Microscopes Online Answer on the Microscope Online worksheet. Don’t f orget your name.

Station 4: Animal Cells 1. Read the station card to answer the following questions: a. Why did we add iodine to our cheek cells? _________________________________ b. Which objective should be used fi rst? ___________________________________ c. What structure in the cheek cell was stained darkest? _______________________ 2. Af ter you have viewed the cheek cells, complete the drawings below. Write the name of the specimen and the power of magnification to the right of each circle. Label the nucleus, cytoplasm, and cell membrane in the 100x drawing.

Station 5: Plant Cells

1. Af ter you viewed the leaf cells, complete the drawings below. Write the name of the specimen and the power of magnifi cation to the right of each circle. Label the nucleus, cytoplasm, chloroplast, and cell wall in the 100x drawing.

2. How was the plant cell diff erent than the animal cell?

Station 1:MYSTERY PICTURES

0Identify 24 mystery pictures – close-up, magnified views of common objects.

Station 2:MAKE IT SIMPLE

0Create a simple lens to view the letter “e”. Compare how the size of the water drop affects the magnification and compare the magnification to that of a

hand lens.

Station 3:SELECT-A-SLIDE

0View prepared slides under different powers of magnification and learn how to carefully record observations. Describe the differences between low and high power.

Station 4:ANIMAL CELLS

0Make a wet mount slide of human cheek cells and view it under different powers of magnification. Identify the major organelles of animal cells: nucleus, cell membrane, and cytoplasm.

Station 5:PLANT CELLS

0Make wet mount slide of Elodea leaves and view it under different powers of magnification. Identify the major organelles of plant cells: nucleus, cytoplasm, cell wall, and chloroplasts. Differentiate between animal and plant cells after completing both stations 4 and 5.

Station 6:SCOPE BASICS

0Label the parts of the microscope in the shortest amount of time in Parts and Pieces. Review basic vocabulary by matching all cards correctly in the shortest time in the Vocab Challenge. Play two review games at the SMARTBoard.

SMART Board Games

0 microscope review games draft.notebook

Station 7:MICROSCOPES

ONLINE

0Visit two or three internet sites to discover the history of the microscope and explore the effects of magnification.

http://sciencespot.net/Kid Zone

0Cells and Microscopes0 Site 1: A-Z Microscope History OR0 Site 2: Microbus

0 Site 4: Magnification Module

0 Optional:0Site 3: What in the World?0Site 5: Powers of Ten

ANCHOR ACTIVITIES

0Crossword puzzle0Seek N Find 0Net books: review games at quia.com

ASSESSMENT

Exit tickets: 1. Name the most interesting thing you did today.

2. Describe one thing you learned

today. Student Packets Microscope Test

0For copies:

0chayden@stmarthaschool.org

0Adapted from http://sciencespot.net/ T. Trimpe