"Big Trees and Grasses" Plant PPT Courseware 4

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"Big Trees and Grasses" Plant PPT Courseware 4

There are not only tall trees on campus, but also low grass.

Do we know these little grasses?

It can be found on campuses, fields, roadsides, and orchards. It is an annual weed that is distributed throughout the country and has strong vitality. Its fruit clusters are fluffy and resemble a dog's tail.

Compare:

The leaves have different shapes: clover leaves are oval, and foxtail leaves are needle-shaped.

Clover has no fruits, while foxtail has clusters of small fruits.

Common characteristics of herbs:

They all have roots, stems, leaves, flowers, and fruits

Their stems are "herbaceous", succulent and soft.

These herbaceous weeds live in farmland, roadsides, wastelands, etc. They can be found everywhere and are widely distributed on the earth. They have strong vitality, including annuals, biennials and perennials. Although their life cycles are not long, they have strong fecundity.

Different grasses come in many shapes and forms, each with its own differences, but they share many common characteristics. Tell us what you think about grasses.

The similarities and differences between big trees and small grass

Similarities: Trees and grass have roots, stems, and leaves in common, and some will bloom, bear fruit, and have seeds (the basic shape and structure are the same); both grow in the soil and need sunlight, water, air, etc. (the basic living environment and living needs are the same ).

Difference: Trees are woody plants and grasses are herbaceous plants. Trees are generally tall, with thick stems (woody stems) and rough texture, while grasses are generally short, with thin stems (herbaceous stems) and soft texture. Trees and grasses have different lifespans. Trees have long lifespans, and their specific structural characteristics are also different.

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For more information about the "Plant Trees and Grasses" PPT courseware, please click on the "Plant ppt Trees and Grass ppt" tab.

"Big Trees and Grasses" Plant PPT:

"Big Trees and Small Grasses" Plant PPT Part One: Common Grasses There are not only tall trees but also low grasses on campus. Do you know these grasses? Where do these grasses grow on campus? Plantain is an annual or biennial herbaceous plant...

"Big Trees and Grasses" Plant PPT Courseware 3:

"Big Trees and Grasses" Plant PPT Courseware 3 Think about it and answer: What are the common grasses in our lives? Where do they live? Characteristics of grass: It grows in the soil, needs sunlight and water, is relatively short, has thin and soft stems, and has roots and stems..

"Big Trees and Grasses" Plant PPT Courseware 2:

"Big Trees and Grasses" Plant PPT Courseware 2 Research Requirements 1. Carry out the activities of observing Setaria in an orderly manner 2. Draw a simplified diagram of Setaria 3. Exchange the observation results in groups. Fruit There is a seed in a mature fruit. In spring If you plant it, you can...

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Update Time: 2024-09-15

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

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