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by BlastRoom
Read printed weather observations and state the likely change as a probability instead of a certainty.
#weather#us_grade_6_science
20 questions
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A school weather station records air pressure of 1016, 1011 and 1006 millibars over six hours while humidity climbs. What change becomes more likely?
A forecast gives a 40 percent chance of rain tomorrow afternoon. What does that number mean?
A cold air mass is moving toward a town where the temperature is 26 degrees Celsius and the wind blows from the south. What is most likely after the front passes?
A warm, humid air mass slides slowly up and over a cooler air mass sitting across a region. What weather is most likely there?
A weather station records air pressure of 1004, 1009 and 1014 millibars over nine hours as humidity falls. What change is most likely?
Why do forecasters state tomorrow's rain as a chance instead of a promise?
An air mass forms while sitting for days over a warm tropical ocean. What properties does it most likely carry when it moves over land?
An air mass forms over cold, snow-covered land in winter. What weather does it most likely bring when it moves into a region?
A forecast of a 20 percent chance of rain still means rain is possible somewhere in the forecast area.
Saying "it will definitely rain tomorrow" is the correct way for a forecaster to report a weather prediction.
A forecast gave a 60 percent chance of rain and no rain fell. This proves the forecast was wrong.
A class records that on the last 10 days when air pressure dropped sharply, rain followed on 7 of those days. Based only on that record, what chance of rain fits the next sharp pressure drop?
A teacher must pick one day for an outdoor field study. Saturday has an 80 percent chance of rain and Sunday has a 30 percent chance. What is the best reasoning?
A student writes four notes about the same afternoon. Which note is a weather observation rather than a forecast?
A student claims rain is likely tonight. What set of observations best supports that claim?
A front stalls and stops moving across a region for several days. What is the most likely weather there?
A cold, dense air mass pushes underneath a warm, humid air mass. What happens next that makes precipitation more likely?
Why is a forecast for seven days from now less certain than a forecast for tomorrow?
New pressure readings arrive and a forecaster raises the chance of rain from 30 percent to 70 percent. What does that change show?
Two towns 5 kilometers apart both receive a 50 percent chance of rain for the same afternoon. What can be predicted?
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Circulation and Regional Climate: Going Further
20 questions
