Drawing Contour Lines on a Topographic Map

[@karenosborn3033]

Thank you so much for your professionally recorded, accurate, succinct videos. It is hard to find good ES material, especially for NYS curriculum. As a teacher they are so helpful!!

[@malikaagarwal4508]

Extremely helpful videos. I am learning / reviewing Earth Sciences for a middle school science competition. Thank you Mr. Sammartano.

[@nadimhossain774]

Extremely helpful videos. Thank You Mr. SAMMARTANO

[@keithknapp2797]

Good explanations and graphics.

[@kennedyshaleigh9662]

Now, you can teach my teacher how to explain these maps virtually!

[@anusmitadutta6900]

Wow

[@ADIIIIIIIIIIIIIIIIIIIIIIIIIIII]

THANK U SO MUCH

[@ericcarbonneau2295]

Good vid keep it up man.

[@pjay1438]

Lines can cross each other in the case overhanging cliff and cave.

[@sagebuckingham1274]

What up geo lab classmates

[@MurcuryEntertainment]

You sound stunningly like Hank Green.

[@aarushprasad4493]

get a life