Science Question Preview (ID: 33999)


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Characteristics used to classify stars include:
a) scent and size.
b) color, temperature, size, composition, and brightness.
c) composition and material.
d) color, size, scent and texture.

The _______________ of visible light is made of the colors red, orange, yellow, green, blue and violet.
a) spectrum
b) notation
c) telescopes
d) horses and tails

The ___________includes radio waves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
a) color spectrum
b) scientist spectrum
c) radiation from stars
d) electromagnetic spectrum

This is how scientist call the light you can see:_____________.
a) clear light
b) visible light
c) lightbulb
d) H-R diagram

The brightness of a star depends on:____________.
a) it´s color and scent.
b) It´s texture and material.
c) it´s size and temperature.
d) It´s temperature and color.

Astronomers often use ___________ to measure distances to nearby stars.
a) parallax
b) rulers
c) telescopes
d) measurements

It is born when the contracting gas and dust from a nebula becomes so dense and hot that nuclear fusion starts._____________.
a) stars
b) babies
c) nebulas and black holes
d) supergiants

Astronomers use it to describe sizes and distances in the universe, when numbers are too long or too short:
a) numbers
b) scientific notation
c) rulers
d) parallax

The distance between the crest of one wave, and the crest of the next wave is called:___________.
a) wavelenght
b) crest to crest distance
c) top part
d) lenghten

________collect and focus light and other forms of electromagnetic radiation.
a) Telescopes
b) Nets
c) Visible light
d) The Milky Way

According to this theory, the Universe formed in an instant, billions of years ago, in an enormous explosion.
a) Darwin´s Theory
b) The theory of life
c) The Big Bang Theory
d) The Big Tang Theory.

They use a unit called the _____________ to measure distances between stars.
a) centimeters
b) long year
c) heavy year
d) light year

Scientist use _________ to classify stars.
a) H-R system
b) R-H diagrams
c) H-R diagrams
d) Awesome Diagrams

Most stars are members of groups of two or more stars, called:_____________.
a) star systems
b) star family
c) big stars
d) huge stars

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