Experiment to Show Air Pollution

Air pollution is all around us. Air pollution began to attract people’s attention in the 1950’s, when people got sick and died as a result. The minute particles in the air that are not harmful unless inhaled in over long periods of time, are the substances causing the health issues. You can identify air pollution…

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Powers of Fractions

Example 1 To solve this problem, treat the base as a whole number. Expand and multiply. Example 2 Read more →...

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Introduction to Exponents

An exponent is the idea of repeated multiplication. Example 1 23 This is not 2×3. Recall the description of “repeated multiplications” So the above problem represents the multiplication of the number 2 three times. 2 x 2 x 2 = 8 Example 2 32 This problem is completed in much the same way. 3 x…...

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Adding Fractions: Common Denominator

Solve: To add these two fractions we need to find a common denominator. IT will be the LCM of 11 and 13. However, 11 and 13 don’t share a common factor so their LCM will be the product of 11 and 13. 11 x 13 = 143 Therefore: For the fraction, 4/11, since we multiplied…...

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