A table with three columns: What was done , Observations (what you saw), and Equations/Conclusions .

Comparing the reaction rate of a solid chunk of a substance (like marble or zinc) versus its powdered form.

Observing how varying the concentration of an acid affects the speed of gas evolution.

To experimentally study the factors that influence the rate of chemical reactions. Key Experiments:

Which specific (Basic or Advanced) or chapter are you currently studying?