Question

key terms: match the key terms from the box with the definitions on the lines below.
geocentric orbited movements epicycles predict
telescope constellations cartographer sphere heliocentric

1. to make an educated guess based on observations
2. group of stars forming a pattern

3.model of the universe with the earth at the center

1. motions
2. model of the universe with the sun at the center
3. a tool for observing distant objects
4. smaller circles whose centers move around the circumference of the larger circle
5. 3 - d object such as a ball
6. mapmaker
7. to circle around an object

short answers: answer the questions in the box
what did ptolemy believe about the universe? was he right?
why was ptolemy a well - known cartographer? were his ideas accurate?

Explanation:

1. "Predict" means to make an educated guess based on observations.
2. "Constellations" are groups of stars forming a pattern.
3. "Geocentric" is the model of the universe with the Earth at the center.
4. "Movements" refer to motions.
5. "Heliocentric" is the model of the universe with the sun at the center.
6. "Telescope" is a tool for observing distant objects.
7. "Epicycles" are smaller circles whose centers move around the circumference of the larger circle.
8. "Sphere" is a 3 - d object such as a ball.
9. "Cartographer" is a mapmaker.
10. "Orbited" means to circle around an object.

For the short - answer questions:

• Ptolemy believed in the geocentric model of the universe (Earth at the center). He was wrong as the heliocentric model (sun - centered, later supported by Copernicus, Galileo etc.) is more accurate.
• Ptolemy was a well - known cartographer because he made significant contributions to cartography, such as developing a system of coordinates. However, some of his ideas about the shape and size of the Earth and the positions of landmasses were inaccurate by modern standards.

Answer:

1. Predict
2. Constellations
3. Geocentric
4. Movements
5. Heliocentric
6. Telescope
7. Epicycles
8. Sphere
9. Cartographer
10. Orbited

Short - answer:

• Ptolemy believed in the geocentric model. He was wrong.
• He was a well - known cartographer for his cartographic contributions, but some ideas were inaccurate.