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Detergents and Plants
To determine whether or not different detergents affect the growth and health of plants and if they do, to measure in what waysthe plants have been affected.
Required materials
* 5 small, inexpensive and separately potted plants
* 4 different types of detergents such as laundrysoap, dish soap, hand soap and bath soap
* 1-2 gallons of distilled water
* Measuring cup
* 1 teaspoon
* Ruler
* Journal or notebook* Space for the plants that includes enough sunshine for them to continue the process of photosynthesis
* 1. Carefully inspect the plants tomake sure they are healthy and are all relatively faring the same. Your experiment will not be accurate if one plant is more withered than another.
* 2. Pickone plant to be your control – throughout the experiment, it will be watered only with distilled water and no detergents will be used.
* 3. Label each plantso you will know which detergent is being used with which plant and which one your control is.
* 4. You will need to water each plant with ¼ cup of watereach day. You do not want to use too much if the plants are small as you may end up overwatering them.
* 5. Prepare the detergent solutions for the plants bymixing 1 teaspoon of each detergent with the ¼ cup of water. Water each plant at the same time every day, watering the experimental plants with their respectivedetergent solutions and the control plant with distilled water only.
* 6. Repeat watering with the detergent mixtures and distilled water for seven days.
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