Integrated Science Vocabulary

Question 1

What is an Astronomical Unit?

Answer 1

An astronomical unit is a unit of length equal to the distance of the earth from the sun.

Question 2

What is the definition of a light year?

Answer 2

The distance light travels in one mean solar year.

Question 3

What is Parsec?

Answer 3

A unit of distance equal to 206,265 times the distance from the earth to the sun or 3.26 light years.

Question 4

What is the definition of Nebula?

Answer 4

A hazy or fuzzy cloud of insterstellar gas and dust.

Question 5

What is a Constellation?

Answer 5

A various group of stars that have been given names.

Question 6

What is a Planetesimal?

Answer 6

An astroid located in space combined with other planets to form another planet of the solar system.

Question 7

What is the definition of Protoplanetary?

Answer 7

The disk of matter around a planet to be. (Example: Saturns Rings.)

Question 8

What is Nuclear Fusion?

Answer 8

When two small atoms form into one big atom.

Question 9

What is the definiton of a Terrestrial Planet?

Answer 9

A planet with a rocky surface.

Question 10

What is a Gas Giant Planet?

Answer 10

A planet made entirely of gas.

Question 11

What is a Comet?

Answer 11

A celestial body surrounded by an envelope of dust and gas moving around the sun.

Question 12

What is an Asteriod?

Answer 12

An asteroid is a small rocky body orbiting the sun. Asteriods range from 600 miles across to as small as a dust particle.

Question 13

What is a Cosmologist?

Answer 13

A person who studies the evolution and space time relations of the universe.

Question 14

What is the definition of angular velocity?

Answer 14

Angular velocity is the rate of a rotating body’s angular position change.

Question 15

What is Orbit?

Answer 15

When a celestial body rotates .

Question 16

What is the scientific definition of period?

Answer 16

Period is a portion of time.

Question 17

What does it mean to revolve?

Answer 17

To revolve men to move in a circle around a central axis.

Question 18

What does rotation mean?

Answer 18

The movement of something turning on its axis.

Question 19

What is a Sidereal day?

Answer 19

A sidereal day is the time between two consecutive transits of the First Points of Aries.

Question 20

What is a Solar Day?

Answer 20

The time between successive meridian transits of the sun an a particular place.

Question 21

What is a year?

Answer 21

The period of 365 days starting from the month of January.