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WorksheetsG8 CH67 Space Part2
Total questions: 10
Worksheet time: 5mins
A globular cluster is a large group of old stars. What could be a reason new stars are not usually observed within globular clusters?
Globular clusters have a large amount of gas and dust.
Star groups in the globular clusters are broken apart by gravity.
Globular clusters do not have sufficient amounts of gas and dust.
Star groups in globular clusters are too disorganized to form new stars.
In the early 20th Century, astronomers thought that the Milky Way Galaxy was the entire universe. In fact, they considered spiral galaxies, such as the Whirlpool Galaxy, to be spiral nebulae within the Milky Way. What could be the reason for this misconception?
Astronomers discovered new stars being formed from clouds of gas and dust within spiral galaxies.
The spiral galaxies looked irregularly shaped from Earth, prompting astronomers to classify them as nebulae.
The spiral galaxies looked like clouds of gas and dust through telescopes because of their distance from Earth.
Astronomers could spot planets revolving around stars in the spiral galaxies, prompting them to name them spiral nebulae.
A group of scientists at a space research organization is studying a newly discovered galaxy. How can they collect data about the galaxy?
Send space probes to the galaxy to take pictures.
Use the internet to gather information about galaxies.
Send sound signals and wait for the signals to come back.
Observe photos of the galaxy taken by telescopes in space.
The planet Neptune is larger than the planet Venus. Yet you and I can see Venus with the naked eye, and definitely with a pair of binoculars. But for us to see Neptune, we would need a strong telescope. This is because
Neptune is on the opposite side of the Sun.
of our position on the surface of the Earth.
most of Neptune's mass is gas and we cannot see gas.
Neptune is so far from Earth and Venus is much closer.
As we look up into the night sky, the stars appear to move from east to west. In science, we call this apparent motion. Why do the stars seem to move in the sky?
Because the Sun is orbiting around the Earth.
Because the sky is rotating overhead, from east to west while we look up.
We are looking at them from the surface of the Earth as the Earth rotates.
The stars and moon move in one direction and Earth moves in another direction.
Mary lay in bed and watched the constellations move on the ceiling over her head. Her parents had bought her a star projector that projected them there. The stars moved in a circle across the ceiling, so her view was always changing. Is that what happens in real life?
Yes, the stars orbit the sun.
Yes, the stars are orbiting around the Earth.
No, both the earth and stars are orbiting around the sun.
No, the earth moves, which makes the stars appear to move.
What is the name of the spiral galaxy in which Earth exists?
Pi
Orion
Andromeda
Milky Way
Galaxies are systems of stars, gases, and dust that exist in a wide variety of shapes and sizes. The simplest classification scheme devised by Edwin Hubble recognizes four basic types of galaxies; elliptical, spiral, barred spiral, and irregular. Identify the shape of the Earth's galaxy.
Spiral
Lenticular
Elliptical
Irregular
Why does the moon appear to move across the sky?
the Moon's rotation
Earth's rotation
the Moon orbits the Sun
the Sun orbits the stars
The Hubble Space Telescope was launched in 1990. Hubble is a space telescope that orbits Earth above the atmosphere. How can a space-telescope such as Hubble provide more valuable data than a traditional ground-telescope used by astronomers?
closer to objects in space
more expensive and better technology
atmosphere distorts and blocks the light
secret technology not used in ground-telescopes
