"Earthworm" Animal PPT Courseware 2

"Earthworm" Animal PPT Courseware 2
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"Earthworm" Animal PPT Courseware 2

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"Earthworm" Animal PPT Courseware 2

1. The environment in which earthworms live

Earthworms live in soft soil. We can often find earthworms in flower beds, lawns, and vegetable gardens. Sometimes they are also hidden under bricks.

It is easier to find earthworms if their droppings are found on the land.

2. Observe the body of earthworms

What does the body of an earthworm look like? Can you find its mouth, girdle and anus?

3. Observe the movements and reactions of earthworms

1. Use a pen to gently touch the body of an earthworm. What will happen to it?

The earthworm's body will stretch and contract to avoid it.

The earthworm's body has segments, and it relies on the scaling between segments to crawl and respond to external stimuli.

2. Put an earthworm gently into shallow water at room temperature. How will it react?

Put it in the water for a while and you can see it struggling.

Snails like moist environments, but are afraid of water and cannot live in water.

4. Compare the similarities and differences between earthworms and snails

Snail: lives on moist ground, has a shell, antennae and eyes, has a soft body, and eats vegetable leaves, etc.

Earthworms: Live in loose soil, have joints in their bodies, and eat fallen leaves.

Similarities: adapt to humid environments, have soft bodies, can crawl, eat food, excrete, reproduce, and respond to external stimuli.

Keywords: animal teaching courseware, earthworm teaching courseware, third grade science PPT courseware download from the textbook edition, third grade science slide courseware download, animal PPT courseware download, earthworm PPT courseware download, .PPT format;

For more information about the "Animals and Earthworms" PPT courseware, please click on the "Animals ppt Earthworms ppt" tag.

"The Choice of Earthworms" Biology and Environment PPT Download:

"The Choice of Earthworms" Biology and Environment PPT Download Part One: Exciting Introduction Where are earthworms easy to find? What is a suitable living environment for earthworms? How to design experiments to prove our conjecture? ... ... ... The choice of earthworms PPT..

"The Choice of Earthworms" Biology and Environment PPT:

"The Choice of Earthworms" Biology and Environment PPT Part 1: Earthworms and the Environment Where are earthworms easy to find? What is a suitable living environment for earthworms? How to design an experiment to prove it? What conditions can only be changed in an experiment? What conditions will not be changed?

"Earthworm" animal PPT:

"Earthworms" Animal PPT Part 1: Observe the body of the earthworm. Use your fingers to gently pick up the earthworm from the breeding box, place it on the white paper, observe the earthworm with a magnifying glass, and draw its appearance. The body of an earthworm is round and long, composed of many similar body segments. A little before...

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Update Time: 2024-11-16

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"Earthworm" Animal PPT Courseware 2
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