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Questions in Grade Middle-school

[Homework Help] Black bears have thick fur that traps air. How does this air insulate the bear in winter?

[Homework Help] In the City of Ember, why would it frighten the children to see Ember's current storerooms?

[Homework Help] Lisa had a set of 12 toy cars. Then she gave her sister 3 cars. What fraction of Lisa's set did she give to her sister?

[Homework Help] A girl found the skull of an animal. She did not know what the animal was, but she was sure that it preyed on other animals for its food. Which clue led to her conclusion? A. The eye sockets faced sideways. B. The skull was much longer than it was wide. C. There was a projecting ridge on the front of the skull. D. Four of the teeth were long and pointed.

[Homework Help] Which of these parts of an animal would be most likely to form a fossil? A. Heart B. Kidney C. Eye D. Tooth

[Homework Help] The atomic number of nitrogen is 7, and the atomic mass is 14.01. What can we deduce from this?

[Homework Help] Where are monsoons most commonly found?

[Homework Help] What do I do to simplify \(\frac{77}{84}\)?

[Homework Help] The planet Mercury measures 4,879 kilometers from one side to the other. Earth measures 12,756 kilometers from one side to the other. What is the difference between the two measures?

[Homework Help] A student rounded the size of a park to the nearest thousand acres. Her estimate was 276,000 acres. What number could be the exact number of acres? A. 276,543 B. 276,479 C. 275,424 D. 275,289