Science Notebook Title Microworld n Table of Contents

Science Notebook Title – Microworld n Table of Contents: Page – Activity -Date n

Notebook- KWL n What I Know About Magnifiers n What I Would Like to Find Out About Magnifiers.

OBSERVING A PENNY Materials: For Each Participant n Activity Sheet 1 n Penny n Hand Lens

OPTIONAL ACTIVITY 1 small bottle of vinegar n 1 small container of salt n Paper towels n Wax paper n

Notebook Study n n What are some characteristics found here that you would probably find on other coins? What E-Pluribus Unum mean, and what language is it? Why did you use the magnifying glass on the penny? How was the smaller magnifier differ from the larger magnifier?

COMMUNICATING YOUR OBSERVATIONS Materials: n Activity sheet 2 n Hands lens For Each Team: n 1 set of objects (screen wire, yarn, burlap, pencil shavings)

“Peanut Babies” n n n Give each student peanut –Can’t write on the peanut Write a description of their peanut baby- Include: weigh-measure circumference-length or any other observable feature. Take the peanut back up: Staying in the nursery Kidnap the peanut Students can write an ad for the newspaper describing their peanut. Reappear – claim their baby

LEARNING ABOUT LENSES Materials: n Hand lens n Activity sheet 3 For Each Team: n Water-dropper n 4 – pieces of waxed paper (about 3 – inches square) n 2 – transparent acrylic cubes n 2 – transparent acrylic spheres n 2 – transparent acrylic cylinders n 4 pieces of newspaper (3 – inches square)

Expository Writing If you were at home and you had to see an object up close and you did not have a magnifying lens, what could you use to see up close? n Or Explain how you would make a magnifier in an emergency. n

LOOKING THROUGH LENSES Materials: n Activity sheet 4 n Marble n Hand lens For Each Team: n Set of transparent acrylic shapes n Water-dropper bottle n 4 pieces of waxed paper n Set of objects from Lesson 2 (screen wire, burlap yarn pencil shavings)

Notebook: Study Questions Why doesn’t a flat lens magnify? n Do items magnify if they are rounded? n Why did the cylinder magnify the word on it’s side, but not vertically? n

LEARNING TO USE THE MICROSCOPE Materials: Microscope Microfiche 2 – Slides Reading Activity: Who Invented the Microscope? Student Activity Book: Page 11 -12

PRACTICING WITH THE MICROSCOPE Materials: n Microscope n Screen wire n Tape n Black and white photographs from newspaper n Black and white photographs from glossy magazines n Colored pictures from newspapers (Comics) n Colored pictures from glossy magazines

THE FIELD OF VIEW Materials: n Microscope n Activity Sheet 5 n Hair (Their Own!) n Microfiche n Flat Slide For Each Team: n Set of objects from Lesson 2 (yarn, burlap, screen, pencil shavings) n Water –dropper bottle n Pieces of newspaper For Teacher Demonstration: Rigid ring at least 2 ½ inches in diameter

PREPARING SLIDES Materials: n Microscope n 2 -flat slides n Well slide n Cover slip n Hair (Their Own) n Lens paper For Each Team: n Water-dropper bottle n Forceps n Feather n Sponge n Poppy seeds n Fish scales For the Class: 1 – 2 containers of clear rinse water and paper towels

WHAT IS IT? Materials: n Microscope n Well slide n Cover slip For Each Team: n Table salt n Epsom salt n Quartz sand n Tape n Lens paper

EXPLORING COMMON OBJECTS Materials: n Microscope n Well slide n 2 - Flat slides n 2 – Cover slips Optional Activity: n Index card with hole punched in center For Each Team: n Water-dropper bottle n Forceps n Hand lens n 4 pieces of lens paper n Tape For the class: an assortment of objects, 1 -2 containers of clean rinse water, and paper towels

EXPLORING COMMON OBJECTS Reading Selection: Taking a Look with Robert Hooke Student Activity Book (Page 35)

PREPARE HAY INFUSION “IT’S A STINKY JOB, BUT SOMEONE HAS TO DO IT” Fill several jars one-third full of plant matter of your choice (hay, dried grass, fresh grass). n Add water to the top of the jar. River, stream, pond, swamp, bog, or aquarium water works best. n Cover n

LOOKING INSIDE AN ONION Materials: n Activity Sheet 6 n Microscope n Hand lens n Slide n Coverslip For Each Team: n Small onion n Water-dropper bottle n Scissors n Forceps n Toothpicks n Paper Towel For the teacher: paring knife , cutting board, and a Container of clear rinse water

CELL CAKES Have parents bake one round cake and one square cake for each group n Students create a 3 -D representation of the animal cell on the round cake and the plant cell on the square cake using icing and candy n Each component is identified and labeled with a toothpick marker n

CELL CAKE ASSESSMENT (Layered Look Book) Name each component of the cell n Identify cell component with its representation on the cake n Explain the function of each component of the cake n In Marie Antoinette's famous words, “Let them eat cake!” n

LOOKING AT LIVING THINGS: VOLVOX Materials: n Microscope n “Very” clean well slide n Lens paper n Coverslip For The Class: n Volvox Culture n Clean dropper n Container of clear rinse water for cleaning slides

VOLVOX Found in ponds n Group of organisms known as Green Algae n Uses process of photosynthesis n Live in colonies of 1, 000 – 3, 000 in hollow spheres held together by clear jellylike substance. n Each cell has two flagella n Smaller daughter colonies are visible inside sphere n Daughter colonies released through opening in parent colony n Rich bright green color the rotates slowly n

LOOKING AT LIVING THINGS: BLEPHARISMA LESSON 13 Materials: n Microscope n “Very” clean well slide n Lens paper n Coverslip For The Class: n Blepharisma culture n Clean dropper n Container of clear rinse water for cleaning slides

BLEPHARISMA Member of ciliates: body covered with short, moveable, hairlike extensions called cilia that move it through the water and force food into its mouthlike opening n Binary Fission: reproduces by dividing itself in half n

LOOKING AT LIVING THINGS: VINEGAR EELS Materials: n Microscope n “Very” clean flat slide n Piece of lens paper n coverslip For The Class: n Vinegar eel culture n Droppers n Container of clear rinse water for cleaning n Cotton balls n Unflavored gelatin n Paper towels

“WILD THINGS” VINEGAR EELS Harmless roundworm n Nearly transparent n One of the lowest animals to have a digestive track n Embryos develop inside the female’s body and are born “Alive and Wiggling” n Spends its entire life in unpasteurized vinegar n

HAY AND GRASS INFUSION Materials: n Microscope n Well slide n Flat slide n 2 – coverslips n Lens paper For The Class: n Hay and grass infusions n Droppers n Container of clear rinse water n Cotton balls n Unflavored gelatin n Paper Towels

HAY AND GRASS INFUSION n SAFETY REMINDER: Students should avoid putting hands near eyes or mouths when handling infusions. Have students wash their hands to remove any bacteria.

HAY AND GRASS INFUSION Hay and grass have begun to decompose n Bacteria on the hay, grass, or your hands began the process n Single celled organisms appeared and fed on bacteria n Organisms had been in a resting state on or in the hay and grass n When the organisms were introduced to water they came out of their protective coverings n