1. Development of a Chick Embryo
Page 50 in lab book

2. Safety
Eggs may contain Salmonella bacteria. Do not consume any part of the egg.
Wash hands thoroughly when finished.
Clean all surfaces.

3. Study of a hen’s egg

4. Eggs come in many different sizes

5. Cutting open your egg.
1. Draw an oval on the egg as shown in Figure 1.
2. Carefully open the egg, do not break the yolk.

6. Clean up 1 Throw away the bowl with the egg in it.
2. Clean with hot soap and water all dissection instruments then dry: Probe
scissors forcepts
3. Wash down your lab table and dry

7. Part II: Chick Embryos Page 53
There are only 4 slides that are 16 hours and 24 hours. You will have to share the slides.
Draw the image under low power in the margin of your lab book.
Answer all questions on the page

8. 33 Hour Chick Embryo: page 54
Obtain a slide of either a 33 or 48 hour embryo.
Draw the embryo in the margin of your lab book.
Answer all questions on page 54-55, 5-9.
Return Slides, put microscope away.

9. Analysis and Interpretations
1. Digestive
Nervous
Circulatory
2. Nervous
Digestive
3. Cellular communication is most important in development.
60 hours