eg. mixing liquids, doing an experiment, measuring ingredients
In an experiment, two children grow the same kind of plant in the same place for a month. The boy waters the plant once a day and the girl waters the plant twice a day. What is the variable in this experiment?
The number of times a day the plant is watered is the variable
1. Put 20ml of liquid into the test tube. 2. Add the crystals. 3. Stir the ingredients. Instructions like this in science are known as the what?
Method
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