Tinora Science Fusion Unit 3

Planets are classified as either inner planets or outer planets based on their distance from the sun. What is found between the inner planets and the outer planets?

• asteroids

• comets

• moons

• stars

A student’s model of the solar system is shown here. Which of these objects would most likely be found between Mars and Jupiter?

• stars

• asteroids

• comets

• dwarf planets

Tags

NGSS.MS-ESS1-3

Pluto was once called a planet. In 2006 it was reclassified with other nearly round bodies whose orbits cross the orbits of other bodies. Which of the terms describes Pluto?

• asteroid

• dwarf planet

• comet

• meteor

During a visit to an observatory, Silvano observed the moon, Venus, the sun, and the star Sirius. Which of these objects is outside of the solar system?

• Sirius

• sun

• Venus

• moon

The figure shows the eight planets in our solar system. Which of the following planets has a large solid core?

• Jupiter

• Mercury

• Neptune

• Saturn

Tags

NGSS.MS-PS1-1

Elliptical galaxies are brightest toward the center. Which of these statements best explains this observation?

• The stars are evenly distributed through the galaxy.

• The center is crowded with stars, and the number of stars decreases farther out.

• Most of the stars are near the outside of the elliptical galaxy, with dust clouds in the center.

• The stars are spread throughout the galaxy in bands that look like the arms of spiral galaxies.

Tags

NGSS.MS-ESS1-2

Some galaxies have symmetrical shapes. Other galaxies look jumbled. What term do astronomers use to describe a galaxy such as the one shown in the illustration?

• barred spiral galaxy

• elliptical galaxy

• irregular galaxy

• spiral galaxy

All visible stars in the night sky are many times larger than Earth. Why do they look like tiny points of light?

• They are moving very fast

• The atmosphere blocks most of their light.

• The stars visible at night are located very far from Earth.

• Most of the light from stars is absorbed by galaxies, so it dœs not reach Earth

There are two types of spiral galaxies. What is the difference between a barred spiral galaxy and a normal spiral galaxy?

• the number of spiral arms

• the shape of the galaxy’s center

• the number of stars in the galaxy

• the colors of the stars in the galaxy

What is an orbit?

• the turning of a planet on its axis

• the distance of a planet from the sun

• the speed at which a planet moves around the sun

• the path one object takes around another object in space

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5