BL Workshop

Make a Microscope




Click here for a PDF version of these instructions.

microscope step one

  • Paper punch
  • Thin piece of cardboard (a postcard or file card)
  • Aluminum foil
  • Needle
  • Toothpick
  • Petroleum jelly
  • Glue
  • Eyedropper
  • Distilled water
  • Scissors
  • Flashlight or other light source

Step One: Punch a quarter-inch hole in the cardboard. Cut and glue a piece of foil on the card to cover the hole. Do not get any glue over the hole. Gently poke the needle through the foil. Make the pinhole round and smooth; the more round the hole, the better your microscope will work.

microscope step 2Step Two: With the tip of a toothpick, carefully pread a thin layer of petroleum jelly just around the hole on both sides of the foil. Make sure to keep the hole open, free of jelly. With an eyedropper, squeeze a drop of clean distilled water into the pinhole. The petroleum jelly should hold the water in the pinhole. You may have to tap the card gently to get the water

in the hole.

Step Three: Point the flashlight upward. Place the object you want to study over the light. Look at the object through the water drop.

Comments about “Make a Microscope”

  1. josh says:

    Thanks a lot

  2. Cupcake says:

    How does this work ? I’m doing a project and I need to know how it works

  3. gus says:

    um i dont think it works it dosnt have the rite tecnolagy but i will try it becaes it looks cool

  4. AMEER says:

    COOL PUT A VIDEO OF THE DIRECTIONS AND A VIDEO OF IT WORKING THANKS

  5. LoneWolf says:

    I love sience in fact I maybe a sientist when I grow up.

  6. N.J. says:

    My class once made a microscope but it was slightly different. ;)

  7. Coolkid says:

    I have a real microscope at home.It sees cells,but not much though.

  8. ryan says:

    i dont think it will work

  9. fishinglover says:

    i need to do that :o :)

  10. a small person says:

    It probibly dos’nt see cells just small detals.

  11. Lycanthrope says:

    You can just take a microscope slide and put a drop of tap water on it.

  12. camper1210 says:

    IT REALLY WORKS!!!!!!!

  13. Anonymous says:

    the scop was able to see cells

  14. Some-One says:

    Of course it does!!!!!!!!!!!

  15. sam says:

    Does it really work?

  16. Anonymous says:

    By using it can we see a cell?

  17. CHADSTER says:

    this will be cool it will probly be expensive for distilled water though

  18. geekboy says:

    that’s so primitive, it’s cool

  19. ELIAS says:

    SOOOOOOOOOO COOOOOOOOOOOOOOOL

  20. kongfu master says:

    this going to be cool

  21. bob says:

    Cool scope!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  22. Fat says:

    I like your hobbies you hav on this website!!!!!

  23. josue says:

    Does it can see a cell?

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