Yes. How much it affects the experiment depends on exactly what the experiment is and how much the temperature has changed, but any change in temperature affects water's physical and chemical properties.
the temp of water (what they changed)
effect water temperature has on hair structure
About a teaspoon.
Decreasing the temperature of water the value of pH increase.
1. heat the soda water at different temperatures 2. titrate the soda water against a known concentration of base (like NaOH) 3. alternatively, you can weigh the mass of the soda water before and after heating
the temp of water (what they changed)
Depends on what the experiment is. You can evaporate the water.
Your experiment should show what the effect of a variable is on the outcome of the experiment. If you have two variables, you don't know which variable contributed what to the outcome. For example: if want to see the effect that temperature has on water, you'll want to vary your temperature (temperature is a variable) and record your observations on the water. If nothing else is varied during your experiment and you do this experiment in your kitchen at sea level, then you may learn for instance that as you bring water temperature up from -60C to 0C it melts . If, however, you also vary your pressure (pressure is a SECOND variable) during this test, then you may find that if your pressure is 100Pa, as you bring water from -60C, it turns to vapor at ~25C!
it could be ethier or depeding on the experiment
the environment
effect water temperature has on hair structure
To negate an effect of heating up/cooling down because of the environment as the experiment takes place
a thermometer
water
When you are performing an experiment, you want to change only one variable at a time. Let us say that you would like to know how different temperature affect the speed at which mushrooms grow. If you only alter the temperature then the interpretation of the experimental results will be clear. If you alter the temperature and also alter the amount of water (for example) then the interpretation of the results will no longer be clear, since the results might have been caused by the temperature, or by the water, or even by the combined effect of the temperature and water. Therefore, you control your variables.
About a teaspoon.
the effect of temperature on water is that when the temperature increases the water particles move faster and when moove too fast the water evaporates. but when the temperature decreases, the particles move slower, creating no heat and the water freezes. (: