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In 1995, the Hubble Space Telescope photographed a tiny spot in the sky for a period of ten days; 342 exposures were placed together to create an image known as the Hubble Deep Field. Although the sample is tiny, it is representative of the universe, which looks similar in all directions. The image below shows a collection of billions of stars. The Hubble Deep Field shows at least 3,000 groups of these stars.

• Moon

• Galaxy

• Universe

• Solar system

Tags

NGSS.MS-ESS1-2

One physical property of a star is apparent magnitude. Which of the following is used in determining the apparent magnitude of a star?

• The constellation the star is in.

• The distance the star is from Earth.

• The number of times the star rotates.

• The number of prominences the star makes.

An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and the sun have similar sizes and surface temperature. Using this information, what can the astronomer conclude about the star?

• The star is a white dwarf.

• The star is medium sized.

• The star is hotter than most other stars in our galaxy.

• The star is brighter than most other stars in our galaxy.

Our solar system consists of eight planets. Each planet is classified as either a terrestrial planet or a gas giant planet. Which is a difference between these two types of planets?

• Terrestrial planets are larger than gas giant planets.

• Gas giant planets are denser than terrestrial planets.

• Terrestrial planets have thinner atmospheres than gas giant planets.

• Gas giant planets have rocker crusts than terrestrial planets.

Which of the following units is used to express the size of stars?

• Kilometer

• Light-year

• Solar Radius

• Astronomical unit

The sun is made up of different elements. Which element makes up more than 70 percent of the sun?

• Carbon

• Helium

• Hydrogen

• Oxygen

The __________ has planets, moons, comets, and asteroids.

• solar system

• earth

• rotation

• United States

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Why is Venus so much hotter even though it is further away from the Sun?

• Venus doesn’t have an atmosphere which causes the planet to become much hotter than other planets.

• Venus’ atmosphere is so dense that heat is trapped and can barely escape, making it hotter than other planets.

• Venus has different layers in our atmosphere which causes Venus to be hotter.

• Venus atmosphere is so thin that heat is able to pass through and make the planet hotter.

What type of model is shown?

• geocentric

• Wheels on wheels

• heliocentric

• galaxy

Tags

NGSS.MS-ESS1-2

Earth's ________ on its axis causes day and night.

• rotation

• revolution

• phase

• comet

Tags

NGSS.MS-ESS1-1