Learn how to make your own topographic map! Demonstrates that a contour line is a line where all points on the line are of equal elevation. This video uses blue water to fill a plastic volcano mold. Water lines are traced to show the contour lines.
BasicStudents matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient)Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
AdvancedStudents matched to this level are ready for material that requires superior performance and mastery.