Why Grass Green Presentation. Why green grass

Why Green grass. It is known that white color is a mixture of colors, it is easy to see if you skip the light of light through a glass prism, since different colors have different refractive angles, we will see all the components of white color separately, conditionally these colors are divided into seven groups (" colors of rainbow"). White color.

Slide 4. From the presentation "Methods of presenting graphic information". Archive size with a presentation 575 KB.

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Text Content Slides Presentation: Why are the green plants? The work was performed: Chervatushuk Taisiya Olegovnica 1 gramba "Akimovsky Secondary School" of the Municipal Education of Nizhnegorsk Regional Science Leader: Niyar Muschandanova Azhm member of primary classes of plants play an important role on Earth. Process-symbol of vital activity of any body require energy. The main and source of energy on Earth is the energy of the Sun, reaching us in the form of sunlight. However, animals, mushrooms and bacter-rii cannot use it in this form. We have a drink organic substances and already get energy. Plants can only perceive solar energy. Thus, the growing gave food almost the rest of the living world on Earth. The purpose of my work was: to study the effect of sunlight on the growth and intensity of the process of photosynthesis in different conditions of growing plants. The object of study was wheat. For the study, wheat seeds were dusted and seeded, the plants were in two pots. One pot with wheat was placed in a dark wardrobe, the other was on the windowsill in the elementary class office. After 3 days after the start of the experience, observations were made: - the plant was in a dark closet continued to grow regardless of the location, but brightened and the color with a dark green changed first to bright green, and then on yellow. - With a plant that was on the windowsill, no color changes occurred. For three days of staying in the sun, the plant reappeared a green color in context, was investigated by the effect of sunlight on the growth and intensity of photosynthesis by plants. The exposure was in a dark cabinet did not cease to grow, which proves that the plant is optional, and sufficiently that they are watered. However, still changes occurred: the color changed from a dark green first on bright green, then on yellow. What suggests that in the leaves of the plant there are substances that, depending on the intensity of sunlight, affect its color. Based on sources of literature, we found out that these substances are green pigments - chlorophylls. And in the plant placed in a dark cabinet, the process of destruction of these substances occurred. We also came to the conclusion that the autumn leaves acquire a multicolored color precisely because of this process - the process of destruction of the green substance, and then slow die away leaves occurs. As for the second plant, there was no noticeable change with it, only after the measurement of the height of the plants was made, they came to the conclusion that the plants rose. During the experience set: the growth of the plant does not depend on the sunlight, but its painting is directly related to the intensity of lighting with sunlight. Thanks for attention!

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