Hi! I’m Laura and I blog about crafts, decorating and more over at Lessons From The Lake.
I am so excited to be at Crystal and Comp. today!
I am a retired teacher and curriculum writer, mom of 6 adult children, 5 dogs and a cat! My husband and I live on a beautiful lake in South Carolina.
Enough about me, let’s jump into this Egg-cellent lesson!
Children love learning about science! In this lesson, children will learn about the parts of the egg while becoming a scientist and using their observation and predicting skills.
The lesson has the learning objectives of:
1. Students will identify the parts of the egg.
2. Students will use observation skills to tell the difference in a raw and hard-boiled egg.
3. Students will predict which egg will wobble.
The downloads also include what you need to do before the lesson, the materials needed for the lesson and a they will walk you step-by-step in conducting the lesson (even how to boil the eggs, if you need help with that :} )
Here is an actual picture of the parts of the egg to help you in the lesson. The lesson has a 2-D picture (with answer key), but I thought a real one would also be helpful.
Keep in mind that the chalaza may not be as pronounced as the one in this photograph. Also, I added a dot to the germinal disc because it doesn’t show up very well in the photo. You may or may not be able to see the germinal disc on your egg. If you really want to see one, keep cracking eggs until you do!
The packet also includes recommended books, websites and even ways to extend the lesson for your children. And here are a couple of other things you can do with eggs:
Make an egg bounce!
Place a raw egg into a jar and cover with vinegar. Leave egg in vinegar for 2-3 days or until shell is completely dissolved. Rinse egg in water. Gently drop egg on floor or counter from about 1 foot in the air and watch it bounce! It will break eventually and from a higher dropping point.
You can make this into a prediction activity too by asking the children how high they believe it can drop before it breaks.
Examine the egg more closely
Look at shell from the boiled egg. Identify the air sac at end of one shell. The air sac helps cushion the chick while it develops.
Also identify the egg membrane on the shell. The membrane is another protective barrier for the chick and also helps get the air (that comes from the pores in the shell) to the chick while it is developing.
After looking at the raw egg and identifying the parts, the children can take a toothpick and break the membrane around the yolk. Gently poke the yolk, which will pierce the membrane. The yolk will ooze out! (Note: The membrane around the yolk is not the same membrane that is seen inside the shell)
I hope you enjoy all this Egg-cellent science with your children!
Thanks for having me Crystal!