Worksheet

Stars and Apparent Brightness

Grade 5 - Science - On Level

NameDate

  1. Two identical flashlights shine, one across the room and one beside the observer. What is the best explanation?

    • apparent brightness decreases with distance
    • distance changes how bright the light appears
    • the Sun is much closer to Earth
    • nearer light sources can appear brighter than farther ones

  2. The graph models apparent brightness for near lamp and far lamp. What pattern does it show?

    • the farther light always appears brighter
    • the nearer light appears brighter to the observer
    • distance has no effect on apparent brightness
    • stars do not give off light

  3. Why is "the nearby flashlight stops producing light" not supported by the star-brightness model?

    • it uses distance evidence carefully
    • it matches the Sun's position near Earth
    • it correctly explains apparent brightness
    • it ignores distance and the fact that stars give off light

  4. Which claim about apparent brightness is strongest for this evidence: Two identical flashlights shine, one across the room and one beside the observer.

    • the Sun is much closer to Earth
    • nearer light sources can appear brighter than farther ones
    • other stars are much farther away
    • distance changes how bright the light appears

  5. Which question belongs in a stars and apparent brightness investigation about this evidence: A star chart shows many points of light, but the Sun lights Earth during the day.

    • Where does a possessive apostrophe go?
    • How does distance from the observer affect how bright a star looks?
    • How can soil be separated from water?
    • Which consumer eats grass?

  6. The Sun appears brighter than other stars even though many stars are larger. What is the best explanation?

    • the Sun is much closer to Earth
    • apparent brightness decreases with distance
    • other stars are much farther away
    • nearer light sources can appear brighter than farther ones

  7. The graph models apparent brightness for Sun and Sirius. What pattern does it show?

    • distance has no effect on apparent brightness
    • stars do not give off light
    • the farther light always appears brighter
    • the nearer light appears brighter to the observer

  8. Why is "light only travels in daytime" not supported by the star-brightness model?

    • it correctly explains apparent brightness
    • it matches the Sun's position near Earth
    • it uses distance evidence carefully
    • it ignores distance and the fact that stars give off light

  9. Which claim about apparent brightness is strongest for this evidence: The Sun and Sirius are both stars, but the Sun looks much brighter from Earth.

    • the Sun is much closer to Earth
    • other stars are much farther away
    • nearer light sources can appear brighter than farther ones
    • distance changes how bright the light appears

  10. Which question belongs in a stars and apparent brightness investigation about this evidence: A nearby lamp and a far lamp can model why stars have different apparent brightness.

    • How does distance from the observer affect how bright a star looks?
    • Which consumer eats grass?
    • How can soil be separated from water?
    • Where does a possessive apostrophe go?
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