Unit 6 Science Review

Why is the sun brighter than the stars we see at night?

• It gives off the most light.

• It is the biggest star.

• It is the closest star.

Peter has learned that many stars are actually larger than the sun. If this is true, why do these stars appear like tiny points of light in the night sky?

• These stars are hotter than the sun.

• These stars are farther away from Earth than the sun.

• These stars have less mass than the sun

• These stars are made of different chemicals than the sun.

If two stars are the same size, then _______________________.

• the cooler star will be brighter than hotter star

• the smaller star will always appear brighter than the bigger star

• the star that is closer to the Earth will appear brighter than the star that is farther away

• stars are all the same brightness no matter how far away

How do different stars appears as we see them from Earth?

• The farther away the stars are from Earth the brighter they appear.

• The closer to Earth the stars are, the smaller they appear.

• The closer to Earth the stars are, the larger they appear.

• All stars look bright no matter how close or far they are to Earth.

A fourth-grade student created a model of some of the planets in the solar system by placing a basketball, a soccer ball, and two marbles on a table, as shown in the illustration.This model best represents a comparison of what feature of the planets?

• Relative size
• Composition
• Distance from the Sun
• Order

Tags

NGSS.MS-ESS1-3

The United States has landed a device on Mars. Using this device, which question can now be answered that could not be answered before?

• What is the soil like on Mars?
• What shape and color is Mars?
• How far away is Mars?
• Does Mars have any moons?

Tags

NGSS.MS-ESS1-3

Which of the following is an accurate description of one of the differences between planets and stars?

• Planets are only found outside our solar system; all stars are inside our solar system.
• Stars appear to move back and forth in the night sky, while planets appear to move in an orbit..
• Planets can be seen because they reflect light; stars can be seen because they give off light.
• Planets are always made up of pure gas, while stars are solid.

This table lists information about two types of objects that can be seen in the night sky. Which of the following will correctly complete the table by filling in the missing characteristic of Object Type 1?

• Releases large amounts of heat energy           
• Many of them are larger than the Sun
• Does not twinkle when viewed in the night sky

Tags

NGSS.MS-ESS1-3

A scientist is using a telescope to search for planets outside the Solar System. She finds a rocky object orbiting a bright object. Which of these is true?

• The rocky object is a planet because it is orbiting a star.
• The rocky object is a star because it is orbiting a planet.
• The bright object is a planet because it stays in one place in the constellation.
• The bright object is a star because it moves to different locations in the constellation.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Use the information and model to answer the following questions. A student uses the following model of the solar system. Which is a limitation and an advantage of the model?

• An advantage of the model is that it shows relative size. A limitation is that the model does not show the distance between the planets correctly.

• An advantage of the model is that it shows the composition of the planets. A limitation is that it doesn't show the order of the planets.

• An advantage of the model is that it shows how the planets orbit around the sun. A limitation is that it does not show the composition of the planets.

• An advantage of the model is that it shows the distance between the planets correctly. A limitation of the model is that it does not show relative size.

Tags

NGSS.MS-ESS1-1