How Much Water Does a Plant Lose?

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Presentation transcript:

How Much Water Does a Plant Lose? Grade 7 Experiment How Much Water Does a Plant Lose?

Treatment: Fan ONLY (Windy Day) Table #1: Raw Data Group # Treatment: Fan ONLY (Windy Day) Leaf A (Control) Leaf B (Experimental) Start Mass /g Final mass /g Final Mass /g 1 0.260 0.252 0.312 0.309 2 0.242 0.238 0.316 0.304 3 0.538 0.529 0.446 0.431 Treatment: Hair Dryer (Hot, Windy Day) 4 0.520 0.435 0.500 0.171 5 0.592 0.486 0.534 0.321

Table #2: Processed Data Treatment = fan (Windy day) Leaf A (Control) Change in Mass /g % change in mass Av. Change in mass /% - 0.008 - 3.0 -0.003 - 1.0 - 0.006 - 2.5 - 0.012 - 3.8 - 0.009 - 1.7 -2.4 -0.015 - 3.4 -2.7 Treatment = Hair dryer (Hot, windy day) Change in Mass /g % change in mass Av. /% Change in mass - 0.045 - 8.7 - 0.329 - 66% - 0.048 - 8.1 - 8.4 - 0.213 - 40% - 53.0