WEEK 1: Dinosaurs
Day 2: Dinosaur Eggs
Overview: Day 2 focuses on the idea that baby dinosaurs came from eggs that adult dinosaurs laid. Children use investigation, modeling, and reflection skills. The lesson appeals to the Verbal-Linguistic, Logical-Mathematical, Visual-Spatial, Bodily-Kinesthetic, Intrapersonal, and Naturalistic intelligences.
- Fossilized Egg Pictures
- Hard boiled eggs
- Plastic knife
- 12” balloon
- Two bowls
- Elmer’s Glue
- 3-4 pages of newspaper (or construction paper), torn into 1 ½” strips
- Science Journals. We’ll be using little books folded out of paper.
- KWL chart and marker
- Gather supplies
- Boil eggs
- Do you know any animals that make eggs? Dinosaurs made eggs too!
- What’s in an egg? Let’s dissect an egg and find out! Give your child a boiled egg and a plastic knife and talk about the parts of an egg as she discovers them. Younger children may need help peeling the shell. Children are likely to notice the shell (for protection), the air cell at the large end of the egg (space left when the egg’s contents cool after the egg is laid...the air cell gets larger as the egg gets older), the egg whites (which have lots of protein), and the egg yolk (which has lots of vitamins, minerals, and fat). Some children may notice the chalazae (twisted pieces of egg white that hold the yolk in place), the membranes around the yolk and whites (helps protect the egg), or the germinal disc on the yolk. Older children may be interested in knowing that the chicken eggs we eat are not baby chickens because they were never fertilized. You must have a rooster to help make baby chickens. ;) (My explanation for young children is, “These eggs were made by chickens, so they’re for eating. Baby chickens grow in eggs that were made by a chicken AND a rooster.”)
- Baby birds, chickens, and dinosaurs are all born from an egg. Scientists have found fossilized dinosaur eggs! Look at the pictures of fossilized dinosaur eggs. These eggs were laid in a nest that was covered with mud. The mud dried and after many years these eggs turned into rocks. What shapes are the eggs?
- Let’s make our own dinosaur egg! Cut a dinosaur shape out of the sponge (or use a very small toy dinosaur) and stuff it into the 12” balloon. Blow the balloon up to about 8”-9” and place it on a bowl. In another bowl, mix equal parts of Elmer’s glue and water. Explain that you will be using paper maché to make a dinosaur egg! You may want to put an apron on your child. Dip a strip of newspaper into the glue/water mixture. Wipe as much liquid off as possible by brushing the strip between two fingers. The strip will still be wet. Stick it onto the balloon. Help your child cover the entire balloon with 1-2 layers of newspaper. Older children may be able to cover the whole balloon by themselves. Children five and under will likely need help. The balloon will feel soft. Let it dry for about a day, or until it feels hard again. At that point you can pop the balloon, paint the egg, and shake the egg and hear your “dinosaur” inside. When your child is ready for it to hatch, let her break it open and pull out her dinosaur!
- Re-visit the KWL chart (if you have one) and write down what you learned today.
- Let your child draw or write about what she did today in her Science Notebook.
Extra! Extra! (If you and your kiddo have time and interest! Note: Supplies needed for Extra! Activities are NOT included in the Supply List.)
- Carefully crack a raw egg into a bowl and let your child find the same parts that she saw when she dissected the boiled egg.
- Fill one plastic egg full with nickels, another half full, and put one nickel in a third. Glue or tape the eggs closed. Talk about the terms “light” and “heavy” and have your child put them in order from light to heavy. Younger children can label each egg as light or heavy.
- Use plastic eggs for an egg hunt. They loved it at Easter time, right?!
- Make egg matching cards where one card has a picture of an animal and another card has a picture of its egg. I suggest using a dinosaur, ostrich, robin, crocodile, sea turtle, and frog. Match the cards together or play memory with them.