"Blooming and Fruiting" Growth Changes of Plants PPT

Description

"Blooming and Fruiting" Growth Changes of Plants PPT

Part One: Organize and communicate observation records

Review the growth process of impatiens

When a seed germinates, it first grows roots, then stems and leaves;

The roots anchor the impatiens to the soil and absorb water and nutrients;

Leaves produce nutrients through photosynthesis;

Stems carry water and nutrients and support the plant.

Communicate recent changes in impatiens

On what basis do we assume that impatiens are about to bloom?

What happens to the height of the impatiens plant during its blooming period?

What is the process of fading of impatiens flowers?

Where do the impatiens fruits grow on the plant?

Flowers bloomed and bore fruit PPT, part 2: Studying the process of flowers turning into fruits

Fruit grows after the flower withers, and the fruit appears where the flower blooms. This means that the fruit develops from part of the flower. Which part is it?

Pick a blooming impatiens flower, carefully tear off the various parts of the flower from the outside to the inside, and paste them into the notebook.

Gently open the withered and dried flowers. Are there any fruits inside?

The pollen on the stamens falls on the stigma of the pistil, and pollen tubes grow under the stimulation of stigma mucus.

The pollen tube passes through the style and into the ovary until it reaches the ovule.

The sperm in the pollen tube moves downward as the pollen tube elongates and finally enters the inside of the ovule.

The sperm and the egg cells in the ovule combine to form a fertilized egg.

After fertilization is completed, the petals, stamens, stigmas, and styles fall off, the ovary continues to develop into fruits, and the ovules inside develop into seeds.

It has blossomed and bears fruit PPT, part three: observing the fruits of impatiens

Observation tips:

Observe the shape and color of the impatiens fruits and describe them.

Watch carefully for changes in fruit color.

Count how many fruits are on the plant now?

Gently pinch open a ripe fruit and count how many seeds are in the fruit?

Keywords: Free download of Chinese PPT courseware for the second volume of the third grade of the textbook version, PPT download of flowers and fruits, PPT download of growth and changes of plants, .PPT format;

For more information about the PPT courseware "The Growth Changes of Plants, Blooming and Fruiting", please click the "Growing Changes of Plants, Blossoming and Fruiting" ppt tag.

"Our Great Harvest" PPT download of plant growth changes:

"Our Great Harvest" PPT download on the growth and changes of plants Part 1: Introduction of new knowledge What we sowed was one seed at the beginning, but how many seeds have it turned into now? What do you know by observing the fruits of impatiens? The fruits of impatiens are oval and green (..

"Our Great Harvest" Plant Growth Changes PPT:

"Our Great Harvest" PPT on the Growth and Changes of Plants Part One: We Harvest the Seeds After several months of growth, the impatiens have bloomed and bear fruit, and flower farmers will also welcome the joy of a bumper harvest. How many seeds can be harvested from one impatiens plant? Let's make a simple...

Download the PPT "Blooming and Fruiting" Plant Growth Changes:

"Blooming, Fruiting" PPT Download of Plant Growth Changes Part One: Introduction of New Knowledge Impatiens Is there any connection between flowering and fruiting? ... ... ... PPT has blossomed and bears fruit, the second part of the content: new lesson explanation, small activities before class: observing phoenix...

File Info

Update Time: 2024-09-30

This template belongs to science courseware Third Grade Science Volume 2, Textbook Edition industry PPT template

Preview