Piaget's Conservation

The following post has two questions;

1.Piaget's Conservation

Piaget's Conservation Tasks. Watch the following video link on Conservation of Mass: www.youtube.com/watch?v=gnArvcWaH61#t=137 and other video links shown , give an description of what is happening in these videos on Piaget's theory of Conservation. You may have to cut and paste the link above into a browser. 3+ pages on a topic shown in questions posed about the topic. The Title and reference page do not count to the 3-page minimum. You must use a minimum of 2 journal articles or Scholarly works. The

2.Drugs, Society and Human Behavior

(a) Describe the major causes for concern regarding cocaine use and compare them with various causes for concern regarding amphetamine use, showing evidence of your understanding of their similarities and dissimilarities. (b) Explain the basic rationale and theoretical foundations for the extensive use of amphetamine in the treatment of ADHD (attention deficit hyperactivity disorder). (c) Provide your personal viewpoint on major concerns about ADHD diagnoses and the efficacy of drug treatments that have led to recent controversy. (d) Present a brief but well-reasoned argument for or against the legalization of cocaine use in our society, beginning with your own definition of what constitutes "legalization." Include specific measures you would advocate.