Advanced Definitions for ACT Biology
Monocot = flowering plant whose seeds have one embryonic leaf (cotyledon) Dicot = plant with seed with two embryonic leaves (cotyledons)
private sat tutor in nj
DNA Info for Science Section on Standardized Tests
– DNA undergoes transcription to become RNA. RNA undergoes translation to become protein. – Ribosomes contain RNA – Proteins are large molecules with smaller amino acids in them. – The nucleus of a cell contains chromosomes. The chromosomes have DNA wrapped in proteins.
What is a Circuit? ACT / SAT
A circuit is a complete path that electricity flows through. There is a source of electricity (battery). Conductors are the materials that allow electric current to pass through them easily. Conductors like the positive and negative ends of a battery. In a closed circuit, the electricity flows without any interruptions. Ohm’s Law: Voltage (V); Current[…]
What Are the Types of Electronic Bonds? SAT & ACT
Types of Electronic Bonds 1. Covalent bonds – 2 or more elements share electrons (ex: H2O) 2. Ionic bonds – strongest bonding. One element takes an electron from another molecule (ex: NaCl) 3. Hydrogen bonds – weakest form of bonding. Hydrogen atom interacts with an electronegative atom like nitrogen, oxygen, or fluorine
Newton’s Laws – ACT Science
1. Newton’s First Law: An object that is at rest will stay at rest unless a force acts upon it. An object that is in motion will not change its velocity unless a force acts upon it. 2. Newton’s Second Law: Force = mass * acceleration. The second law states that the rate of change[…]
Practice Math Problems for ACT + SAT
Sally is staying at a hotel that charges $88.50 per night plus tax. A 6% tax is applied to the room rate, and an additional onetime untaxed fee of $7.00 is charged by the hotel. Write an expression for Sally’s total charge, in dollars, for staying x nights.
Practice Math for the SAT & ACT!
x² + y² = 167 y = −3x Solve for x and y.
SAT & ACT Math Practice
The function h is defined by h(x) = 6x³ + 9x² + 3cx + 24, where c is a constant. If (-4, 0) is one of the x-intercepts of h, what is the value of c?
Try out a sample SAT / ACT math problem!
The width of a rectangular floor is w feet. The length of the floor is 8 feet longer than its width. Write expressions for the area and perimeter of the floor in terms of w.
Math Practice
y > 4x − 2 6x > 15 Find the y-coordinates of all the points that satisfy this system of inequalities.