"Snail (2)" Animal PPT

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"Snail (2)" Animal PPT

Part 1: Observing snails eating food

Gently place the snail on the vegetable leaf and quietly observe how it eats the food.

The snail's mouth is on the ventral surface of the head, and there are jaws and radula in the mouth.

The jaws are used for chewing food. There are many neatly arranged small teeth growing on the radula. The front end of the radula can be extended from the mouth to scrape food.

Gently place the snail on top of other foods and watch it eat them?

Snails forage in a very wide range, staple food on various vegetables, weeds and melon and fruit peels; leaves, stems, buds, flowers and juicy fruits of crops.

Snail PPT, Part 2: Observe the excretion and respiration of snails

Where do snails excrete their feces after eating food? What does its poop look like?

The snail has a excretion hole, which is very small and cannot be seen by us. It only opens when excreting, and is usually closed.

A snail breathes through its spiracles. Can you find its spiracles?

Gently hold the snail shell with your hands, let the snail twist its body, and then observe the top position of the snail shell. As the snail moves, every 10 seconds or so, the snail's stomata will open into a small hole, and you can clearly see the snail. breathing.

Snail PPT, Part 3: Continue to observe snails

What else can be observed about the life of a snail?

Keep raising snails and let’s discover more secrets of snails. Don't forget to document your findings promptly.

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For more information about the "Animal Snail" PPT courseware, please click the Animal ppt Snail ppt tag.

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Update Time: 2024-11-22

This template belongs to science courseware Third Grade Science Volume 1, Textbook Edition industry PPT template

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