Is this hypothesis in the right format?.

When yeast and vinegar are put together, they will form an endothermic reaction.

Yes, the hypothesis is in the correct format. A proper hypothesis consists of a statement or prediction about the relationship between variables that can be tested through experiments or observations. In this case, the hypothesis states that when yeast and vinegar are combined, they will result in an endothermic reaction.

To determine whether the hypothesis is correct, you can design an experiment to observe the reaction between yeast and vinegar. You could measure the temperature before and after the reaction to determine if the reaction absorbs or releases heat, which would indicate whether it is endothermic or exothermic. By conducting multiple trials and recording the results, you can evaluate the validity of the hypothesis.