To draw the 1012 isobar, you need to connect all the points on the map that have a pressure value of 1012. Here is the step-by-step logic to complete the drawing:
1.
Identify the Points: Look for every number "1012" on the map. The red arrows in your image are already pointing to most of them to help you find them.
* There is a line of 1012s running vertically through the middle of the country (from Texas up to the Great Lakes).
* There are several 1012s along the East Coast (from Florida up to New England).
2.
Understand the Boundaries: Isobars act like fences between higher and lower pressure.
* To the
left (west) of your new line, the pressure numbers are higher (1016, 1020, 1024).
* To the
right (east) of your new line, the pressure numbers are lower (1008).
* Your line must stay strictly between these high and low numbers. Do not cross any 1016s or 1008s.
3.
Draw the Line:
* Start at the top near the Great Lakes. Connect the 1012 there to the 1012 below it in Kentucky/Tennessee.
* Continue down through Mississippi and Louisiana to the 1012 in Texas.
* From Texas, curve the line eastward across the Gulf of Mexico to pick up the 1012 in Florida.
* Finally, draw the line up the East Coast, connecting the 1012s in Georgia, the Carolinas, Virginia, and up to New York/Maine.
The result should be a long, continuous curved line separating the high pressure in the West from the low pressure in the East.
Final Answer:
Connect all the "1012" data points with a single smooth line. This line should run from the Great Lakes region down through the central US to Texas, then curve east across the Gulf to Florida, and finally run up the entire East Coast to Maine. Ensure the line stays between the 1016 values (to the west) and the 1008 values (to the east).
Parent Tip: Review the logic above to help your child master the concept of isobar worksheet.