Surveying

High school (ages 12+)
Geography

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/surveying

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific foundation?Integrates geodesy, geometry, trigonometry, physics, and engineering
2. What is the technological advancements?Includes GNSS, LiDAR, 3D scanners, and advanced surveying software
3. How do surveyors find the exact spot on Earth?Surveyors use tools that measure angles and distances, like theodolites, total stations, and GPS receivers. They also use math to correct any errors and make the final map reliable.
4. Why do surveyors need GPS and satellites?GPS and other satellite systems give surveyors a fast and very precise way to know their exact location, even over large areas, which helps them create accurate maps and define property lines.

Geodesy: The science of accurately measuring and understanding the Earth's geometric shape and gravitational field.
GNSS: Global Navigation Satellite System; a constellation of satellites providing positioning, navigation, and timing services worldwide.
LiDAR: Light Detection and Ranging; a remote sensing method that uses light in the form of a pulsed laser to measure ranges to the Earth.
Point Cloud: A set of data points in space, typically generated by 3D scanners, representing external surfaces of objects or environments.