While following the steps of the scientific method, when are measurements taken?
OA Just before the hypothesis is made.
OB During the experimental stage.
OC Right after a scientific law is composed.
OD Half way through developing a theory.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )