The best way to memorize is to write while read. It not only helps you to memorize but also keeps a handy note ready for reference. Being a Science student myself, I can relate to your situation. Students face problem in memorizing these chapters because they are confusing and need more and more practice. I would like to give a personal suggestion and that is you can practice multiple choice questions of the exam for which you are preparing. You can refer to MTG Chemistry books for mcq practice.
Question : If $\triangle A B C \sim \triangle F D E$ such that $A B=9 \mathrm{~cm}, A C=11 \mathrm{~cm}, D F=16 \mathrm{~cm}$ and $D E=12 \mathrm{~cm}$, then the length of $BC$ is:
Option 1: $5 \frac{3}{4} \mathrm{~cm}$
Option 2: $4\frac{3}{5} \mathrm{~cm}$
Option 3: $3\frac{5}{7} \mathrm{~cm}$
Option 4: $6\frac{3}{4} \mathrm{~cm}$
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile