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Mathematics Integers Problem: The highest elevation in North America is Mt. McKinley, which is 20,320 feet above sea level. The lowest elevation is Death Valley, which is 282 feet below sea level. What is the distance from the top of Mt. McKinley to the bottom of Death Valley? Solution: The distance from the top of […]

Introducation To Acids And Bases Acids and Bases     Acid An acid is a substance that ionizes in water to produce hydrogen ions (H+) The strength of an acid depends on how completely the substance ionizes.  Strong acids completely ionize in water.  Weak acids ionize only slightly.            Acids Characteristics

Adjectives To Describe Places Words to describe places/buildings Ancient place: historic place Athens is an ancient place which was established two thousand years ago. Boring place It`s a boring place to live. Beautiful place Paris is beautiful in spring. Bustling: crowded, fast-paced, lively New York is a bustling place, the city that never sleeps. Charming

Learning Phrases To Speak English Fluently Phrasal Verbs At the end of the class talking with my students told them next week we will be doing phrasal verbs and their question was “What are those?” I was like … Good Question! Well a phrasal verb is a combination of a verb and preposition, a verb

                                                                                       Material properties Materials have different properties that make them useful for different

Chemical Changes vs. Physical Changes The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a

Prepositions IN – ON – AT The first thing I want you to recognize, and try your best to visualize as you learn these, there is a general flow with both time and location from general to specific. I`m going to explain it in the following way, first with time, then with location: The TOP,

Comparing Numbers It is good to know if one number is bigger, smaller or the same as another number! We use these signs to compare numbers: = If two values are equal, we use the “equals” sign example: 2+2 = 4 <  But if one value is smaller than another, we can use a “less than” sign.

Root Words – Prefixes — Suffixes Root words will be normally at the front or the back of the remaining word. A little digging will uncover just what the root word really means. For example, in a word such as scissors, the root word is sciss, which means cut. Determining a Root Word Some examples