| Category | Format | Size |
|---|---|---|
| Hunan Education Edition Fourth Grade Science Volume 1 | pptx | 6 MB |
"Citizens of the Aquarium" a variety of animal PPT courseware
Description
"Citizens of the Aquarium" a variety of animal PPT courseware
Fish are the oldest vertebrates. They inhabit almost all aquatic environments on Earth - from freshwater lakes and rivers to saltwater seas and oceans.
There are many types of fish. Common fish include:
Black carp, grass carp, silver carp, bighead carp (four major species of fish), crucian carp, carp, goldfish, yellow croaker, hairtail, shark, grouper, etc.
1. Head: control center; 2. Body: there are many organs inside;
3. Dorsal fin qí: controls balance; 4. Caudal fin: strokes, controls balance;
5. Anal fin: paddling, controlling balance; 6. Pelvic fin: controlling balance;
7. Pectoral fins: paddling, controlling balance; 8. Gills: breathing, filtering;
9. Eyes: see; 10. Mouth: eat;
Features I observed:
1. Has a head, trunk, and tail
2. Live in water and breathe with gills
3. There are scales on the body surface
4. Swim with fins
do you know?
Our people's observation, understanding and utilization of fish began very early. The "Fish Farming Classic" compiled by Fan Li, a Yue doctor in the Spring and Autumn Period, summarizes and describes carp farming technology.
Goldfish, which originated from wild crucian carp in China, first mutated from silver-gray wild crucian carp to red-yellow golden crucian carp. After hundreds of years of breeding and improvement, today's colorful goldfish have emerged.
Think: What are the functions of fish’s gills and fins? What do scales do?
The gills of fish are the organs used for breathing
The fins of fish are organs of movement. Used for swimming.
The scales protect the fish body and keep the fish's surface moist.
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For more information about the PPT courseware "Various Animals and Citizens of Aquarium", please click on the "Various Animals PPT Citizens of Aquarium PPT" tab.
File Info
Update Time: 2024-07-01
This template belongs to science courseware Hunan Education Edition Fourth Grade Science Volume 1 industry PPT template
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