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The Day an Egg Solved the Mystery of the Cell Science Notebook Observation Sheet Technician's Name

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The Day an Egg Solved the Mystery of the Cell Science Notebook Observation Sheet Technician's Name Arizona Grown Specialty Crop Lesson Plan The Day an U Level : Grades 4 - 6 Egg Solved Subjects: Science, Health, and Math the Mystery AZ ACADEMIC STANDARDS: SC04-S2C2, of the Cell SC04-S1C3, SC05-S4C1, SC06-S1C3, SC06-S4C1 and everything alive on Earth MATERIALS is made up of cells. An entire BRIEF DESCRIPTION Copy for each student: living thing can be only one Lesson will lead students to Diagram Worksheet cell, or like in humans there compare basic human cell Science Notebook can be billions of cells. structure to chicken egg Observation Sheet The cell is considered to be structure. Experiment will allow Student Self-Evaluation the smallest structure in students to gain a basic Sheet biology that has all the understanding of how nutrition Fresh Uncooked Eggs; the properties of living things. (or possibly toxins) moves number of eggs needed will Most cells have similar basic through cells. Students will solve the depend on whether you structures. So, demonstrate with one egg, or mystery by completing the understanding cells and the experiment. Lesson allow students to work in basics of cell structure is groups or includes hands-on and critical to making sense out of visual experiences. individually. biology. One of the main Wide Mouth Jar(s): The purposes of cells is to number of jars needed organize the process of our OBJECTIVES depends on how many being alive. We don't tell our ! For students to recognize experiments will be legs to walk, or our jaws to that by investigating diverse conducted in the room. A chew. We have brain cells, natural systems we can learn mayonnaise or peanut stomach cells, bone cells, and important things about butter jar works well. It many other types. Each is ourselves. needs a tight fitting lid. Cloth ! For students to gain different from the others and or paper measuring tape. experience identifying, they are responsible for the White Vinegar: If multiple observing, and predicting a processes of life. Let's look experiments are sequence of events which inside one of the nutrition conducted, the gallon size is establish a natural system. cells. cheaper. ! For students to consider (introduce Diagram Sheet; see ways of using this Latex gloves, as needed. Teacher's Resource Guide) information to be Some of our cells distribute responsible caretakers of VOCABULARY nutrition to our body. It's not their own bodies and the Arizona Grown egg, possible for us to take one of planet. membrane, osmosis, them out of our bodies to porous, albumen, natural watch the system work. system, shell, nutrition, However, we can see a similar ESTIMATED nucleus, cells, yolk, DNA life system when we TEACHING TIME experiment with an egg. Introduction: 30-55 minutes RELATED LESSONS Can Although different, eggs are Begin the Experiment You Walk on Eggs? Which observations: 10 minutes a day an excellent visual aid for Came First, The Chicken for 3 days Follow-up learning how human cells or the Egg? discussion/results: 30-45 work. minutes We are using Arizona Grown SUPPORTING chicken eggs. Here in Arizona, INFORMATION there are chicken ranches that It seems a mystery...the way produce millions of eggs for everything on Earth is our local grocery stores. We can be sure that Arizona eggs are fresh and quality SUPPORTING INFORMATION refrigerator or ice chest Look for the chalaza (cont'd) before use. (pronounced: cha laag) it is a eggs you had for breakfast end twisted cord or thick stands of up moving through your nutrition PROCEDURES albumen among the egg white Session 1. that maintain the yolk in the cells. Let's begin by identifying Introduce the mystery (use the parts of an egg (refer back center of the egg. Supporting Information) to the Option (would add about 10 to Diagram Sheet, see students. Teacher's Guide) and see how minutes to the lesson): Using the Diagram individual students or student it's alike, or different, from a Worksheet lead students groups can take an egg(s) and human cell. through the basic structure of a dissect it, matching the actual What happened? (3 days later) human cell. Information on the parts to the Diagram. The eggshell is made of calcium Teachers Resources Page carbonate, also known in nature Session 2. provides basic cell biology and as limestone. When the acid in Introduce the experiment by facts to discuss. Still using the the vinegar covered the shell explaining you will be using a Diagram Worksheet point the there was a chemical reaction. fresh Arizona Grown chicken students to the egg diagram The water in the vinegar was egg to illustrate the mystery of and identify the parts. forced through thousands of tiny how human cells and eggs are If you were using one egg for pores in the shell and in the egg alike. illustration it would be beneficial membrane. This process is Distribute the Science to distribute dry broken pieces called osmosis, where one thing Notebook Observation is absorbed into another. The of eggshell among the students. Sheet. If there will be more egg gets bigger as more water is To see the air cell hold the egg than one experiment absorbed and the acid in the in front of a strong flashlight conducted, there is a paper vinegar eats away or dissolves beam, or use the old fashioned measuring tape along the the shell. way of passing it in front of a edge of the Observation The nutrition cells in our bodies candle flame. The air cell is Sheet that can be used by act much the same way. They always at the large end of the individuals or groups. have a continuous life system egg. The older the egg, the where nutrition (good or bad) is Continue in this order: larger the air cell. constantly absorbed into the 1. Measure the outside To show the 1St membrane, cells and fed to our bodies. circumference of the egg. break open an egg, empty it and We solved the mystery! By 2, Record that measurement on loosen the membrane from the looking at this well-used egg we the Observation Sheet. can scientifically explain how inside of the shell, it should lift nd 3. Carefully put the egg into nutrition is passed through our up in sections. To show the 2 the jar (if there are any cracks membrane students will need to body's cells. Also, we can better you must use another egg.) understand that the choices we look at the yolk of the egg and make about the food we eat and realize there is a thin, clear 3. Cover the egg with white drink determine the quality of membrane around it that holds vinegar. nutrition that is distributed the yolk together. Cooks call the 4. Screw the lid on tight. throughout our bodies. albumen the egg white. Using a 5. Students should record piece of eggshell or a spoon initial observations. GETTING STARTED show the students what it looks 6. Set the jar(s) aside in a This is consumer protection like. Students will observe two safe place for three days. information. Occasionally a consistencies of albumen: 7. The next three days the student may have an allergy to Nearest to the shell membrane eggs, if so, that student should students should document any only observe. After the project is is thin watery albumen that changes they see in the jar. completed everyone handling spreads around the thick, more 8. After three days nd eggs should wash their hands jelly like, albumen. This 2 CAREFULLY take the egg out of with soap and water. Be sure albumen is a major source of the jar and measure around the protein. Show the yolk: the middle of the egg (The shell of that all eggs are kept in a the egg should be gone, and the yellow portion of the egg. The egg should be rubber-like and intensity of the color depends on larger than before). the mix of chicken feed. 9. Students should record the measurement. 10. Give students the opportunity to record all of PROCEDURES (cont'd) Information about consumer the changes the egg has made: safety, egg production, and size, sight, smell, and touch. business include: Discuss: While the changes Presidents Council on Food may seem mysterious, Safety - Egg Safety everything can be Educating individuals scientifically explained. throughout the production to (Supporting Information) consumption continuum. Also, help them to www.foodsafety.qov/ understand that not just one ~fsq/ceqgs thing happened, that instead there was a series of actions that United States Department of result in a scientific Agriculture system. www.usda.gov One of the Optional Discussion: We can't , tell our Nutrition Cells exactly most comprehensive what to do, however, we do information sources is: influence whether the cells have Egg Nutrition Center good nutrition or worthless stuff An all-encompassing center of to distribute. Remember: research, safety, business, everything that we put in our marketing for the egg industry mouth, we wear somewhere in and the consumer. our body. That is why our food www.enc-online.orq and drink choices are so In Arizona be sure to check important. Finally, students should answer the evaluation these websites: questions on the Science State of Arizona Dept. of Notebook Observation Sheet Agriculture - ARIZONA and complete the Student GROWN Program, 1688 W. Self-Evaluation Sheet. Adams, Phoenix, AZ 85007, (602) 542-4373. EVALUATION OPTIONS: www.agricuIture.state.az.us 1. Teacher evaluation of Hickman's Egg Ranch Student Observation Sheet & This website has some Questions interactive kid activities. 2. Student Self-Evaluation sheet Arizona can be proud of this homegrown business.
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