What are the three variables and what can they do? explain.

There are three main types of variables in a scientific experiment: independent variables, which can be controlled or manipulated; dependent variables, which (we hope) are affected by our changes to the independent variables; and control variables, which must be held constant to ensure that we know that it's our manipulation of the independent variable causing the change in the dependent variable. Using these variables correctly helps scientists measure cause and effect in scientific experiments and allows scientists to manipulate cause and effect to produce desired outcomes.

Explanation:

b is the correct answer

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.