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Science Act. 71-74
These are questions off the study guide from Mr. Reininga for activities 71-74.
| Question | Answer |
|---|---|
| phenomenon | an event, or something that happens in the natural world or universe (ex. earthquakes, volcanic eruptions) |
| plausible | consistent with evidence, makes sense in terms of observations (synonyms-credible, believable) |
| axis | the imaginary line that runs through the center of Earth from the North Pole to the South Pole |
| rotate | (verb) to turn or spin on an axis |
| rotation | (noun) the act of spinning on an axis |
| When are shadows longest? When are they shortest? | longest-early morning and late afternoon; shortest-noon |
| What direction do shadows point in the morning? Evening? Noon? | morning-west; evening-east; noon-north |
| What is the correct model for why we have day and night on Earth? | the 3rd model, "Earth takes one day to spin completely around on its axis." |
| Why do we have a need for time zones? | if each city set its time to the exact time the sun was overhead (noon), since the Earth rotates, going to a different city would be very hard, that is why we need time zones |
| Who instituted time zones in the United States? | all the railroads in 1883, (they divided the US into 4 time zone) |
| If you travel west (like to California), would you have to set your watch back (earlier) or forward (later)? What about if you travel east? | west-you would have to set your watch earlier (back); east-you would have to set your watch later (forward) |
Created by:
chuppy00
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