2.1-Observing Planetary Objects-English-Do Now

A scientist observes that a distant star appears to move in a predictable pattern across the sky over several years. Which tool would be MOST essential for making accurate observations of this star's movement?

• A thermometer calibrated in Celsius

• A telescope with optical lenses

• A regolith sample collector

• A heat-measuring device

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NGSS.HS-ESS1-4

If you wanted to compare the temperature of two different stars, why would using the Celsius scale be important for scientific accuracy?

• Because Celsius measures light intensity instead of temperature

• Because Celsius provides a standardized way to record and compare temperature measurements

• Because Celsius can only be used for stars, not other objects

• Because Celsius eliminates the need for a telescope

A light-year is used to measure distances in space. What does this term tell us about the relationship between light and distance?

• It measures how hot light becomes over time

• It represents the distance light travels in one year through space

• It shows how much a telescope can magnify distant objects

• It calculates the heat produced by the sun

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NGSS.MS-PS4-1

Why would scientists study the Saros cycle when predicting solar eclipses?

• To measure the temperature of the sun in Celsius

• To understand the pattern of eclipse repetition and predict when future eclipses will occur

• To determine the composition of nebulae

• To magnify the path of totality

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NGSS.MS-ESS1-1

During a total solar eclipse, observers in the path of totality experience complete darkness. What is the PRIMARY reason this occurs?

• The sun's heat is blocked by hydrogen gas

• The moon moves between the sun and Earth, blocking the sun's light

• The telescope magnifies the darkness

• The regolith reflects all light away from Earth

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NGSS.MS-ESS1-1

A student learns that the sun is primarily composed of hydrogen. How does understanding this composition help explain the sun's role in our universe?

• Hydrogen allows the sun to magnify light for telescopes

• Hydrogen is the fuel source for the sun's energy production through nuclear fusion

• Hydrogen is found in regolith on planetary surfaces

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NGSS.HS-ESS1-1

When comparing a Jovian planet to a terrestrial planet, which characteristic would you expect to find ONLY on a Jovian planet?

• A solid rocky surface covered with regolith

• An optical atmosphere visible through a telescope

• A massive gaseous composition with no solid surface

• Heat generated from the sun's light

How does the concept of a light-year demonstrate the vast scale of the universe?

• It proves that light travels faster than heat

• It shows that distances between stars are so enormous that we measure them by how far light travels in a year

• It explains why we need to magnify objects with telescopes

• It measures the temperature of stars in Celsius

If a nebula is observed to contain primarily hydrogen gas, what can scientists reasonably infer about its potential?

• It will eventually cool down and disappear

• It may be a region where new stars could form through gravitational collapse

• It proves the nebula is part of a Jovian planet

• It indicates the nebula is located in the path of totality

Why would an optical telescope be more useful than a thermometer for studying distant galaxies?

• A thermometer measures heat, while a telescope allows us to see and magnify distant objects

• A thermometer uses the Celsius scale, which doesn't work in space

• A telescope can measure the regolith on distant planets

• A thermometer can only measure the sun's heat