October 29, 2018

The format of the essay is the same across all exams. You will be given a lengthy passage, and asked how the author uses stylistic elements to make his/her argument more persuasive. This similarity lends itself to common patterns across different prompts. Thus, the essay, like all other sections, can be improved easily with practice.  There are several types of examples that will work on almost every prompt. The below...

October 25, 2018

First, reading comprehension is difficult to boost. Strategies boil down to three different methods: 1) Skimming the passage first, then reading in-detail when presented with questions; 2) reading and marking the questions first; and 3) reading in-detail, then answering all the questions. Most times, 1) is the best way to go, but you have to figure out what works for you. The first method is generally successful because...

October 22, 2018

Next, build up your fundamentals. For the Verbal, this really boils down mostly to flashcards. I recommend the “Common Decks” in the Magoosh App. Reading comprehension is typically the hardest to improve upon, and there is no easy way around it. Practice makes perfect here.  For the math, focus on sections with which you are most uncomfortable. Students often find trouble with probability and sequences. Reviewing these...

October 15, 2018

In the beginning of their chemistry classes, students learn how to distinguish physical vs chemical changes. Physical changes are changes to affect the substance without changing its identity. Chemical changes, on the other hand, change the identity of the substance. Therefore, anytime we think there is a reaction, it will be a chemical change since reactions turn reactants into products. 

What ways are there to determin...

October 12, 2018

One of the most important features of HNMR is the number of signals.  Number of signals represents the number of different hydrogens. What does it mean? Hydrogens will be the same if they are connected exactly to the same molecules, so as we go to the left and to the right, there is no difference. Thus, molecules with a lot of symmetry will have a lot of the same hydrogens and less signals. For example a cyclohexane mol...

October 2, 2018

Rutherford observed two things. First, most of the alpha particles were able to pass through the sheet. Second, some alpha particles were deflected back. What did these observations signify? The fact that most alpha particles went through signified that most of the atom is empty space. The observation that some particles deflected signified that they encountered something dense on the their path. What they encountered w...

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