PARTS OF A PLANT
WHAT DO PLANTS NEED TO GROW WELL?
In order to grow, plants need several things.The most important one is warmth. Just like we need the warmth of our parents love, the plants need the warmth of the sun.
Plants need a good supply of water. A very few plants can survive with little or no water, example, the cactus. Plants need soil to put down their roots firmly and grow. But, how do they grow on rocky mountains then? Well, a few plants that do grow on the rocky mountains find soil in the cracks of the rocks – and that is where they put in the roots. If the soil is too hard it is difficult for the plants to put in their roots. Plants need to grow in places where other plants have died. These old plants get dried, and the wind and rain make a powder out of them. That powder is the plant food! Really!
http://www.sciencekids.co.nz/plants.html
http://www.botanical-online.com/lasplantasangles.htm
photosynthesis
Three things plants need to live
Plants need three basic things to live: water, sunlight, and carbon dioxide. Plants breathe carbon dioxide just like we breathe oxygen. When plants breathe carbon dioxide in, they breathe out oxygen. Plants are the major source of oxygen on planet Earth and help keep us alive.
We know now that plants use sunlight as energy, they get water from rain, and they get carbon dioxide from breathing. The process of taking these three key ingredients and making them into food is called photosynthesis.
How do plants capture sunlight?
Plants capture sunlight using a compound called chlorophyll. Chlorophyll is green, which is why so many plants appear green. You might think at first that it's green because it wants to absorb and use green light. However, from our study of light, we know that the color we see is actually the color of light that is reflected. So chlorophyll actually reflects green light and absorbs blue and red light.
More details on Photosynthesis
Inside a plant's cells are structures called chloroplasts. It's in these structures where the chlorophyll resides.
There are two main phases to the process of photosynthesis. In the first phase, sunlight is captured by the chloroplasts and the energy is stored in a chemical called ATP. In the second phase, the ATP is used to create sugar and organic compounds. These are the foods plants use to live and grow.
The first phase of the process must have sunlight, but the second phase can happen without sunlight and even at night. The second phase is called the Calvin Cycle because it was discovered and described by scientist Melvin Calvin.
Plants need three basic things to live: water, sunlight, and carbon dioxide. Plants breathe carbon dioxide just like we breathe oxygen. When plants breathe carbon dioxide in, they breathe out oxygen. Plants are the major source of oxygen on planet Earth and help keep us alive.
We know now that plants use sunlight as energy, they get water from rain, and they get carbon dioxide from breathing. The process of taking these three key ingredients and making them into food is called photosynthesis.
How do plants capture sunlight?
Plants capture sunlight using a compound called chlorophyll. Chlorophyll is green, which is why so many plants appear green. You might think at first that it's green because it wants to absorb and use green light. However, from our study of light, we know that the color we see is actually the color of light that is reflected. So chlorophyll actually reflects green light and absorbs blue and red light.
Inside a plant's cells are structures called chloroplasts. It's in these structures where the chlorophyll resides.
There are two main phases to the process of photosynthesis. In the first phase, sunlight is captured by the chloroplasts and the energy is stored in a chemical called ATP. In the second phase, the ATP is used to create sugar and organic compounds. These are the foods plants use to live and grow.
The first phase of the process must have sunlight, but the second phase can happen without sunlight and even at night. The second phase is called the Calvin Cycle because it was discovered and described by scientist Melvin Calvin.
Even though plants need sunlight and water to live, different plants need different amounts of each. Some plants need just a little water while others need a lot. Some plants like to be in the direct sunlight all day, while others prefer the shade. Learning about the needs of plants can help you learn where to plant them in your yard and how best to water them so they will flourish.
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