Set 23C (Earth Science)

What is true of dwarf planets?

• they orbit the sun

• they are spherical

• they do not have any moons

• they CAN share their orbits with other bodies of significant size

• They have a circular orbit (not any elliptical orbit)

Which of the following statements is true?

• 1. Pluto has an orbit that is much more elliptical than the planets.

• Pluto sometimes has an orbit that is closer than Neptune's orbit

• Pluto has a moon that is the same size as it is

• Pluto is the only planet named after an Assyrian god

Tags

NGSS.MS-ESS1-3

1. ​ (a)   has a ​ (b)   that is closer to ​ (c)   than Neptune. 

• perihelion
• Pluto
• Saturn
• the sun
• Mars
• aphelion

Tags

NGSS.MS-ESS1-3

​ (a)   is a binary/double planet because of its moon (​ (b)   ), which is more than ​ (c)   the size of Pluto

• Pluto
• Charon
• half
• 3x
• Neptune

Tags

NGSS.MS-ESS1-3

Astronomers classify Kuiper Belt objects as __ objects (found outside of the orbit of Neptune)

1. What is true about asteroids?

• 1. Asteroids - the size can vary from about the size of a house to ⅓ size of the moon

• 1. Made of solid rock, gravel, and dust.   

• 1. Some have small satellites of their own. 

• 1. Most orbit between Earth and Venus

• 1. can vary from about the size of a moon to ⅓ size of the sun are

Tags

NGSS.MS-ESS1-3

​ (a)   are made of ​ (b)   and rock, and usually have very ​ (c)   orbits.

• Comets
• ice
• large
• small
• Moons

1. The solar wind blows against a comet __

• 1. and causes the tail formation

• and cause the tail to always point away from the sun

• and cause small asteroids to break off of the comet

• 

Categorize the following:

Groups:

(a) Meteoroids

,

(b) Meteors

,

(c) Meteorites

• 1. ize from dust particles to a small house

• meteors that have reached the Earth’s surface

• 
• 
• 
• 1. meteoroids that has entered the atmosphere

label the parts of a comet

a

b

c

d

ion tail

coma

dust tail

nucleus

cat's tail