Question

1. why exactly do scientists do experiments?

Explanation:

Scientists conduct experiments to test hypotheses, validate theories, and establish cause - effect relationships. Experiments allow for the control of variables, enabling scientists to isolate the factor they want to study. This helps in gathering empirical evidence, which is crucial for advancing scientific knowledge, making predictions, and ensuring the reliability of scientific claims. For example, in a chemistry experiment testing the reaction between two substances, controlling the temperature, pressure, and concentration of reactants helps determine the exact conditions under which a reaction occurs and what products are formed. In biology, experiments on cell cultures can help understand how cells respond to different stimuli, aiding in the development of new drugs or understanding disease mechanisms.

Answer:

Scientists do experiments to test hypotheses, establish cause - effect relationships, gather empirical evidence, validate theories, control variables to isolate factors of interest, advance scientific knowledge, and make reliable predictions (e.g., testing chemical reactions' conditions, studying cell responses in biology).