observation
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Our senses, such as sight, hearing, touch, taste, and smell, are used to observe and perceive the results of an experiment. Instruments such as thermometers, microscopes, balances, and pH meters are used to measure and quantify different aspects of the experiment, providing more accurate and detailed data.
Instruments and our senses are used to collect and analyze data during an experiment. This data is essential for drawing conclusions and making observations about the experiment's variables and outcomes.
Yes, the purpose of an experiment is usually to test a hypothesis and determine whether it is supported by the data collected during the experiment. The experiment is designed in a way that allows researchers to make observations and draw conclusions about the hypothesis under investigation.
A more accurate way to make observations of an object is to use scientific instruments like microscopes, spectrometers, or sensors to gather data in a controlled and precise manner. This allows for more objective and detailed observations compared to relying solely on human senses.
Ernest Rutherford was the first scientist to propose that protons reside in the nucleus of an atom, based on his gold foil experiment in 1911. Neutrons were later discovered by James Chadwick in 1932.
To make an experiment more accurate, you can increase the sample size to reduce the effect of outliers, use control groups to isolate the variable being tested, ensure measurements are precise and consistent, and repeat the experiment multiple times to verify results.