Question: Biology experiments? I need an experiment for 9th grade biology, under 30 dollars budget, and no longer then one week. Thank you.

Answer: u can make ur own laundry detergent using natural ingredients like milk, sodium bicarbonate, calcium (using TUMS), citric fruits like oranges, limes, etc..\ntry reading the labels on the commercial laundry detergent and use natural products with similar properties.
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