Effect of different colors of light on the rate of photosynthesis.

The effects of an area in which a cactus grows on the amount of carbohydrates in the cactus.

Effects of different colors of light on the photosynthesis rate.

Colour of Light

2.1 Choice of filters

A convenient way to investigate the effect of light colour on the rate of photosynthesis is to place a filter between the light source and the sample and an experimental set-up, using a blue filter, is shown schematically below.

Aim: We will be trying to see if light intensity has an effect on the rate of photosynthsis.

Effect of Light Colour on Rate of Photosynthesis Experiment

Contrary to what people think, lungs do not have muscles of their own, but they are dilated or compressed by means of the movements of chest and diaphragm. The device of figure 19 shows how a diaphragm causes air to enter and leave the lungs. In the phase A, the balloons have to be as empty as possible. If you are a teacher, ask to your pupils what would happen if there was a hole in the bottle. Then make a hole, so everybody will see that, even if the diaphragm is lowered, the lungs will not fill with air. Yet it is easy to close the hole and restore the functioning of the lungs. To prove this, seal the hole of the bottle with some sticking tape and move the diaphragm again. This simple experiment shows how a hole in the chest could be fatal. Also how you could save a person by simply plugging the hole. If you have difficulties in finding the Y tube to build the model of the lungs, just use a tube. You will only have one lung, but the principle is the same and you know that in reality there are two.
Do-It-Yourself Lung Model

I am happy with the experiment as I proved that light intensity has an effect on the rate of photosynthesis.

The beauty of butterflies makes their culture particularly charming. Do not believe you will immediately have these beautiful insects, in fact for most of the time you will have to raise caterpillars and preserve pupae. Only at the end will you have butterflies. To culture these pretty insects, you first have to read texts about lepidoptera and practice in the field. In this way you will learn how to find butterfly eggs, to raise caterpillars and to keep pupae, waiting for the butterfly to emerge. Usually, butterflies prefer one or a few kinds of plants called hostplants. Caterpillars feed only on these plants and it is only on these that the adult female lays her eggs. So, in order to find the eggs of a given species of butterfly it is necessary to know which are its hostplants and when they lay eggs.
You should breed caterpillars in well ventilated cages. They have to be closed with mosquito net to avoid predators (figure 14). In fact, many bugs lay their eggs in the body of caterpillars. You have to feed your caterpillars with fresh leafy branches of the host plant. To do this you can pot these plants and insert them in the cage, or you can insert the cage over a branch without cutting it from the plant. If this is not possible, cover a branch of the plant with a cloth bag including the caterpillars. Cure the pupae according the suggestions in the books. When butterflies emerge from their cocoon, free them where you have collected the eggs. If you want to keep some adults to admire them, put them in cages like the one of the figure 14 and nourish them with mixtures of water and honey. Often, the caterpillars you find in nature are victim of bugs which lay their eggs on the caterpillar. In this case, there are little dark spots on the caterpillar skin. You can raise these caterpillars to study their parasites.
Butterfly Gardening and Conservation
The Richmond Birdwing Butterfly Conservation Project
Caterpillar Hostplants Database
Unsure About Butterfly Releases?
Internet keywords: butterfly breeding culture.

Test if Japanese millet can reduce carbon dioxide in the atmosphere, and therefore mitigate the effects of global warming.


Photosynthesis Science Fair Projects and Experiments

6CO + 6H O ® C H O + 12O (in the presence of light energy and chlorophyll) Aim- The aim of the experiment is to determine what effect light intensity has upon the rate of photosynthesis of Canadian Pondweed (Elodea)....

Free rate of photosynthesis Essays and Papers - …

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Free rate of photosynthesis papers, essays, and research papers.

Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast moving molecules collide with other fast moving enzymes causing them to react....