Hatching in the Classroom Egg-ceptional Egg-speriments Fun ways to enhance the Hatching learning experience Sarah Bolt, MS CEA 4-H and Youth Development Smith County Setting Up • Locate a source of Fertile eggs. You can’t do this program with out a good source of Fertilized eggs. • Visit with teacher(s) about setting eggs when you can be at the school 3 weeks in a row, 1 to 2 hours each week. • Decide if you will conduct all of the activities or if the teacher will teach some of them. Also discuss which activities to conduct. http://urbanext.illinois.edu/eggs/pdfs/worksheets.pdf This website is a great source of handouts. • Determine who will bring necessary supplies. • Get your Pre-Test ready and send to teacher.(if it is an outcome program) Setting Up • Be sure and Locate a source of Fertile eggs well in advance. • Where can you get fertile eggs? – Texas A&M Poultry Center http://posc.tamu.edu/texas-agrilife-poultry- extension-specialists/youth-programs/ – Local hatchery – Local producer • Where you are located will make a difference on where you procure your eggs. Ready, Set, Grow • Start a Chick Journal • Week 1: – Set Eggs • Discuss Hatching Factors – Time (21 Days) – Temperature (100 Degrees F) – Rotation – Humidity (Nature vs. Incubator) Ready, Set, Grow • Parts of the Egg – Use real eggs to teach this. Have some fertile and non-fertile eggs to look at. – Weigh the different parts. • The Biggest Loser – Ask students to write in their Chick Journal if they think that the eggs will lose weight, gain weight, or stay the same as the embryo grows. • This is a good place to teach about Hypotheses – Create a chart for the kids to record the egg weights each day. Let the Fun Begin • Week 2: – Egg strength Experiments • How much Weight can 6 Egg Shells Hold? • How much weight can 6 whole eggs hold? • Can you break an egg with your bare hands? • Egg Drop – Egg Porosity • Are Eggs Porous? Egg Strength • How Much Weight will six Egg shells hold? – Supplies: • Six empty egg shells • Books of varying sizes – Procedure: • Set egg shells in two rows, equal distance apart • Start stacking books on them. See how much weight the shells held before breaking Egg Strength • How much weight will six whole eggs hold? – Supplies: • Six whole eggs • Books of varying sizes • Gallon freezer bag – Procedure: • place six eggs in freezer bag close together • Stack books on the eggs until they break. How much weight did the eggs hold? Egg strength • The Strong Man experiment – Supplies: • A whole egg • Trashcan – Procedure: • Take the egg and check it for any cracks • Place the egg in your hands with the ends in the hollows of your palms • Lace your fingers and try to break the egg. • Talk about why the egg is so strong. Egg Porosity • Do eggs have pores/holes in them? – Supplies • Hard boiled eggs • Food Coloring • Gloves • Bowls – Procedure • Ask kids if the eggs have holes in them • Give each group an egg and some food coloring • Have them drip food dye on the outside of the egg • Wait 15 mins and then have them peel the egg. • Did the dye go through? Why? Discuss porosity. Are you in there?? • Candling the Eggs – Use this process to cull your eggs – Have the kids draw what they saw in their Chick Journal – Open cull eggs – This is a good time to study the weight chart and see who had a correct hypothesis and discuss why the eggs that were growing lost weight. Chick Make-Over • Supplies Needed: • Eggs that are 11-14 Days into the incubation process • Regular food dye (not gel) • 1 or 3cc syringes (one for each color used) • 25g x 5/8in (can use 22gx1in) in needles (one for each egg injected plus a few extras) • Scotch Tape • Alcohol Wipes or Hand Sanitizer • Procedure: • Prior to beginning, prepare your syringes with approximately .5-1 cc of dye • Candle the eggs you intend to dye and remove any that are not viable. • Using the alcohol wipe clean a small area on the small end of the egg • Carefully insert the needle into the clean spot and slowly inject the dye. • Re-clean the injection area with an alcohol wipe • Cover injection hole with Scotch Tape. • Replace egg in the incubator. Preparing to Hatch • Make sure the eggs are taken out of the turner on Day 18 of incubation • Increase the amount of water in the incubator • Use an old hand/kitchen towel in bottom of incubator to make clean-up much easier Happy Birthday! This is probably close to the end of your program but here are some other activities that you can do or have the teacher do. • Point out the Egg tooth to the students • If they will be keeping chicks for a little while, have them chart the weights of the dyed chicks. • Have the kids teach other students what they have learned. • Write a Chick Newspaper to send to parents, principles, etc. Helpful Websites Etc. • http://www.4-hcurriculum.org/product.aspx?id=1370&c=Embryology : Embryology in Classroom set of 2 books. • Magic School Bus Cracks a Yolk • Discover Streaming • or • http://www.youtube.com/watch?v=jaSa6qXVQk4 • http://chickscope.beckman.uiuc.edu/explore/embryology/ • How Its Made: Hatchery Video • http://www.youtube.com/watch?v=bkuohLV2u0k • http://urbanext.illinois.edu/eggs/pdfs/worksheets.pdf ( excellent source of handouts and activities) • And when all else fails: GOOGLE Questions?
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