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8th Grade Science Check 3
8th grade Science Check 3
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Quiz Questions
Jared investigated chemical reactions based on smell, color change, and release of bubbles. What type of evidence would support any conclusion Jared makes?
1 point
Sean is studying the advantages of selective breeding in plants. He made the following list of possible advantages: 1) Can produce corn that attracts grasshoppers 2) Can develop grass that can grow with less water 3) Can develop wheat that can grow in different types of soil 4) Can produce oranges that are not affected by freezing temperatures. Which items on the list provide logical arguments in favor of selective breeding?
1 point
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How can the wavelengths of light from a distant galaxy be used to determine the distance between Earth and the galaxy?
1 point
Scientists want to create citrus trees that are tolerant of cold weather. Currently, if the fruit from a citrus tree has not been picked and a freeze occurs, the fruit is damaged and cannot be sold. The scientists are studying how to alter the tree's cells so that they are not damaged by the freezing temperatures. Which of these is a logical reason for continuing this research?
1 point
Tinea pedis is a disease caused by a fungus. It affects mainly external body parts and not internal systems. Which of these could be a symptom of tinea pedis?
1 point
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