In turn, climate change (warmer in some regions, cooler in other regions) may affect various species of plants differently. By increasing the use of carbon dioxide by plants, it may help slow global climate change. This carbon dioxide will be supplied by sodium bicarbonate dissolved in the water with the plant leaf disksģ) the stomata opening is controlled by the guard cells and that water, carbon dioxide and oxygen all pass through the stoma openingsĤ) food production for animals and humans on earth is dependent on plants. The students will learn that:ġ) the variables of light intensity, temperature, carbon dioxide, light quality all influence the rate of photosynthesis.Ģ) photosynthesis requires carbon dioxide to furnish the carbon required to make glucose. The students will learn specific concepts during the activity. The teacher will guide students to problem solve as they design and modify the experiment to insure only one independent variable is being tested during the experiment. The students will need to determine if the question they have chosen to test, is indeed testable. They will improve their observing, questioning and communicating skills.

They will need to use critical thinking to design the experiment and analyze the collected data.

Students will use higher order thinking skills throughout this activity. This activity is designed for students to:ġ) learn that the rate of photosynthesis is influenced by environmental factors that can be quantifiedĢ) understand the equation of photosynthesis and how the structure of a leaf allows for the required gas exchange to occur through the stomataģ) properly design an experiment with one variable, analyze results and report findings to the class

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