[ 489 ] Physical Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Refer to the following passage to answer the next four questions. A paint company has developed a new brand of outdoor latex paint (brand X) that it thinks might be more durable than another company’s brand (brand Y). To save money, the company has employees paint boards of different scrap wood with brand X and brand Y paints. They paint boards with the same number of coats of paint and measure the paint thickness of each board. They place matched boards painted with brand X and brand Y in different environments (desert, temperate forest, arctic tundra) for 12 months. After 12 months, they measure the paint thickness of each board again. They find that the boards painted with brand Y are thinner than those painted with brand X. They conclude that brand X is more durable than brand Y. What is the hypothesis of this experiment? If _____________, then ___________. Is the hypothesis of this experiment testable?