Copper was less bactericidal than I expected. I talked with the membersY.I's "Isn't the effect of copper in one experiment different depending on the amount?"
I decided to use two coppers with different amounts in the second experiment.
And the second theme is to experiment with a total of five types,including two types of copper and three types of acidic disinfectants.
Granulated sugar: Prepare enough to put 5 grams each in all graduated cylinders. (35 bottles x 5 grams = 175 grams)
Put a graduated cylinder solution and flowers, and use it as a substitute for a vase to make it easier to see the reduced amount of water.。
Dilute natural water liquid, etc. and put it in a graduated cylinder.。
Komagome pipette Put the solution etc. into a measuring cylinder. This time I used a beaker instead.
Gerbera is a flower used for experiments. Use the one with the stem cut to 35 cm.
Carbonated water is a liquid used for experiments. Add 20 ml of carbonated water to 80 ml of natural water.
Junmai vinegar, a liquid used for experiments. Add 20 ml of pure rice vinegar to 80 ml of natural water.
Citric acid is a liquid used for experiments. Add 5 ml of pure rice vinegar to 100 ml of natural water.
Copper plate used for experiments. Prepare two patterns, one for 2 cm x 1 cm and one for 10 cm x 1 cm in 100 ml of natural water.
Stir the graduated cylinder of citric acid.It's difficult to mix to dissolve the sugar.
In order to compare the bactericidal effect of copper, we will prepare two types, 2 cm x 1 cm and 10 cm x 1 cm, for the experiment.
Since our concept is to "extend the life of flowers easily with familiar objects," we decided to use "vinegar," which is familiar and is also used for cleaning and removing stickers.
Vinegar after weighing.Use a funnel to put it inside.
I'm measuring carbonated water.It was difficult to measure little by little.
The copper plate is put in the graduated cylinder of the copper plate. Last time I used to touch the copper with my hands,but this time I wash it once with baking soda and put it in with tweezers without touching it.
It is a completed graduated cylinder.After this, they will be arranged for easy understanding.
Which fungicide will make the flowers last longer? we made a prediction.