Photosynthesis Lab

Topics: Fluorescent lamp, Incandescent light bulb, Compact fluorescent lamp Pages: 3 (1592 words) Published: November 2, 2012
Experiment Instructions (Lab Report)<="" span="">Note: These experiments were adapted from two different web sites.  Links are provided to them so that you can look at their wonderful pictures and illustrations that make the process more clear.  However, you need to follow the instructions here to do the experiment correctly.MATERIALS NEEDED (Oxygen Production)Lamp Compact Fluorescent Light (curly light bulb) of at least 60W equivalence (13W or better) Fresh Spinach Leaves

Straw or single hole puncher 
Liquid Soap or Liquid Dishwashing Soap (for handwashing dishes, not machine washing detergent) Plastic Syringe with NO NEEDLE! (ask a pharmacist for the measuring syringe to give a child liquid, oral medicine)  Baking Soda

Clear Glass or Cup
Colored Plastic Wrap or Tissue Paper
Box or Cover to block light
Semi-dark Room <="" span="">MATERIALS NEEDED (Chromatography of Plant Pigments)Tall, Clear Glass Fresh Spinach Leaves and one other type of leaf that Isn't Green (Fall leaves work well, but they must not be dry) Pencil 

Rubbing Alcohol (from the first aid section of your pharmacy) White Coffee Filters
Penny or Nickel
Ruler<="" span="">Don't forget to fill out the Experiment Tracking Sheet for each section of the exercise.  Remember to take one picture of Floating Leaves and one picture of Chromatography for the lab report.PHOTOSYNTHESISYou will be cutting out circles of spinach leaf and watching them float to show oxygen production during photosynthesis.  After cutting out the circles of leaf, you will place them inside a plastic syringe and pull back on the plunger to create a vacuum and suck out the air from inside the leaves.  The leaf circles will now sink.  After 10-20 minutes in bright light, the leaf circles will have produced enough oxygen to inflate and float like tiny rafts.  You will use different colors of paper or plastic to see which colors work well for photosynthesis.You will also be crushing leaf...
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