Questions and Answers
Which characteristic determines the color of a star?
What type of galaxy is shown in the illustration?
Which letter best shows the location of our solar system in the Milky Way galaxy?
Why does the sun appear to be so large?
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Which two categories did Josleen most likely use to group the planets?
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Which feature of Venus best explains why its surface is difficult to observe from Earth?
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Why is the sun considered the center of the solar system?
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Which of the following details in Paul's poster about the solar system is most accurate?
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Which statement best explains why Ganymede is classified as a moon rather than a planet?
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What skill is Wanda using when looking through her telescope?
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What is the name for space vehicles that investigate deep space and transmit findings back to Earth?
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What is a planet?
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Why should you never look directly at the sun using a telescope or just your eyes?
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What problem does an Earth-based telescope have that a space-based telescope does not have?
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Study Notes
Galaxy Classification
- Galaxies are classified primarily by their shape.
Star Color Determination
- The color of a star is determined by its temperature.
Types of Galaxies
- The Milky Way is an example of a barrel spiral galaxy.
Solar System Location
- The solar system is located at point Y in the Milky Way galaxy.
Perceived Size of the Sun
- The sun appears larger than other stars because it is much closer to Earth.
Planet Classification
- Josleen divided planets based on their diameters into two categories: small and large diameters.
Observing Venus
- Venus's surface is hard to observe from Earth due to its thick cloud cover.
Sun’s Role in the Solar System
- The sun is considered the center of the solar system because all solar system bodies revolve around it.
Paul’s Solar System Poster
- The most accurate detail on Paul’s poster is the sizes of the planets and the sun.
Ganymede's Classification
- Ganymede is classified as a moon because it orbits Jupiter, rather than the sun.
Observational Skills
- Wanda is using observing skills when looking through her telescope at solar system bodies.
Space Vehicle Terminology
- Space probes are crewless spacecraft sent to investigate deep space and transmit findings back to Earth.
Definition of a Planet
- A planet is defined as a large object in space that revolves around a star in its own orbit.
Sun Observation Safety
- Directly looking at the sun with a telescope or unaided eyes is dangerous as its strong light can damage vision.
Earth vs. Space Telescopes
- Earth-based telescopes face challenges like air pollution that space-based telescopes do not encounter, allowing for clearer images of distant objects.
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Description
Test your knowledge on galaxies and stars with this engaging science study guide. Explore how scientists classify galaxies and what determines the color of stars. Perfect for students looking to reinforce their understanding of astronomy concepts.
