Henry plans to monitor the change in concentration of an acid during a chemical reaction. he wants to collect data every 0.1 seconds and then to graph his data and insert it into a text document.

which pair of tools would be best for henry to use?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.