Think about how you could design a robot to propel itself across an ice rink by applying the same principles that cause rockets to move. Describe what materials you would use and how the robot would work. What are some material limitations that you would need to consider for a robot moving on ice?

Read the paragraph. the storm continued for hours. the thunder was so loud that it was deafening. lightening flashed in the sky, taking the night from completely black to light. the world was coming to an end. how does the use of figurative language the reader understand the paragraph’s meaning? 1 by the reader understand how scary the storm is 2 by the reader recognize how long the storm lasts 3 by the reader compare the storm with an object 4 by the reader remember a similar storm

What can you infer about gregor from this excerpt? a. he is ungrateful and refuses to eat all of the food that grete brings for him b. his appetite is good, which shows that his body is trying to return to human form c. he always eats trash, and grete is trying to get him to remember being human d. his eating habits are changing, and he is becoming physically less human

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)