This is a tutorial explaining the process and steps of photosynthesis.
This tutorial's topic covers the California State Standards Grade 3: Physical Sciences: Energy and Matter have multiple forms and can be changed from one form to another.
1a. Students know energy comes from the Sun to Earth in the form of light.
1b. Students know sources of stored energy take many forms, such as food, fuel and batteries.
1c. Students know machines and living things convert stored energy to motion and heat.
1d. Students know energy can be carried from one place to another by waves, such as water waves and sound waves, by electric current, and by moving objects.
1g. Students know that when two or more substances are combined, a new substance may be formed with properties that are different from those of the original materials.
1h. Students know all matter is made of small particles called atoms, too small to see with the naked eye.
The process of photosynthesis is very important to the ecosystem.
Photosynthesis is the process of plants making their own nutrients to survive.
Plants need: Water, Sunlight and Carbon Dioxide
We cannot see the atoms or particles because they cannot be seen by a naked eye and need to be viewed by a microscope or other form of in-depth
viewing.
Photo Credit: photosynthesiseducation.com
above.
On a plant, the carbon dioxide comes into the leaves through holes called a stomata. Then the water is absorbed by the roots in the ground and travels up the stem to the leaves. The sunlight is then absorbed by chlorophyll (that makes them green) that is in the leaves.
The world chlorophyll comes from the Greek words χλωρός, chloros and φύλλον, phyllon.
The energy that chlorophyll absorbs is then used to split the water molecules into two forms: hydrogen and oxygen.
The oxygen is released through the leaves into the world's atmosphere. While the hydrogen and carbon dioxide form glucose as a source of food for the plants.
The equation for photosynthesis is shown in the image below. The combination of carbon dioxide, water and the energy from light then works together to produce a carbohydrate called glucose and oxygen.
The formula is 
of this process. There is also a 4-step or 2 stage description of this process. The two stage process is light-dependent reactions and the Calvin cycle. The four steps is absorption of light, electrons transport to make NAD P+ to NADPH, the generation of ATP and the conversion of CO2 into carbohydrates. Plants need the glucose that comes from this process and humans need the oxygen that come from this process. Additional links helpful on the topic:
Artificial Photosynthesis:
https://photosynthesiseducation.com/artificial-photosynthesis/
The Discovery of Photosynthesis:
https://photosynthesiseducation.com/discovery-of-photosynthesis/
