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Authoritative PPT Summary
"Animal Eggs" New Life PPT Download
Part One: New Knowledge Explanation
1. Animal eggs
I find
The size, color, number, shape, etc. of eggs of different animals are different; the smoothness and texture are also different.
2. Observe eggs
Group discussion, leader report:
1. What are the characteristics of the appearance of eggs?
2. Are there any small holes in the shell of the egg?
3. What’s inside the egg?
1.Put the egg in the palm of your hand and squeeze it
It is not easy to crush because the egg is oval and has a high endurance.
2. Use a magnifying glass to observe the surface of the eggshell
There are many small pores on the outside. The chicks need to breathe when they hatch.
3. Observe a raw egg
4. Observe a cooked egg
3. Hatching of frog eggs
Animal Eggs PPT, Part 2: Consolidation Practice
Do it, talk about it
1. Judgment
1. For an animal egg to develop and grow into a new animal, it needs suitable conditions. ( )
2. Insects, fish, frogs and birds are mostly oviparous animals. ( )
3. The egg shell is very brittle and will break when touched, so it cannot protect you. ( )
4. The eggs produced by animals can develop into a new generation of life. ( )
2. Fill in the blanks
1. The way frogs and chickens reproduce through eggs is called _______.
2.Animals that reproduce through eggs are called __________.
3. Frog eggs can hatch into tadpoles in about __________ days.
Animal Eggs PPT, Part 3: Class Summary
1. Animal eggs
2. The hatching of chicks
3. Hatching of frog eggs
4. Oviparous animals
The way frogs and chickens reproduce their offspring is called oviparous reproduction. Animals that reproduce by eggs are called oviparous animals.
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