Make up Bellwork

1. What are the 4 inner planets? List them in order.

2. One Astronomical Unit (AU) is equal to _____ million kilometers

3. _____ has the largest volcano in the solar system called _____ ____

4. When planets in the night sky appear to move backwards we call it _______ motion

5. Retrograde motion provides evidence that the planets are closer to us than the ______

Answer BankOlympus Mons

Mercurystars

RetrogradeMars VenusEarth150

Bellwork

1. _______ is approximately 1 Astronomical Unit from the Sun

2. The planets are extremely far _____ and difficult to reach by spacecraft

3. The inner planets are ____and therefore ____dense

4. The outer planets are _____ and are therefore _____dense

Answer BankmorerockygassyEarthApartless

Bellwork

1) _____ ____ is the phase of the moon that is completely lit up.

2) As the moon goes around the earth, _____ is lit up and half is in ______ and as a result, we see _______of the moon

3) True or False, lunar phases are caused by the earth’s shadow

4) A solar eclipse is when the _____ is between the earth and sun.

Answer Bankmoon

Full mooneclipses

halfEarth

darkness

phasesRetrograde

closer

Bellwork

Use the above diagram to answer the following questions……

1. Which stage (A, B, or C) represent a collapsing nebula????2. _______ is when dust grains clump together we call it3. Which stage (A, B, or C) represents planet formation?4. Which stage (A, B, or C) represents a spinning, flattening

nebular cloud with a hot center?5. After the planets were formed, they were ______ by asteroids

and meteoroids.

Answer Bankspin

Gravitybombarded

AngularPlanets

accretion

1) _____ has a greenhouse effect similar to earth, but much more severe 

2) _____has Olympus Mons & is covered with iron oxide

3) Because Planets are _____, they move ______ than stars in the night sky

4)  A planet that is 150 million km, or 1 AU, from the sun is _____.

5) The inner planets have____ orbital velocities and the outer planets have ____ orbital

6) The backwards motion of planets is called________ motion

Answer Bankfast

MarsfasterEarth

slowVenus

Retrogradecloser

Bellwork

1. Saturn has a very low density, this is because Saturn is a ______ planet.

2. Compared to the outer planets, the inner planets orbit much______ and _______to the sun.

3. Mars is more dense than the outer planets because mars is a______ planet

4. _____ gives Uranus and Neptune its blue green color .

5. The inner planets are made mostly of____&______

6. Outer Jovian planets are made mostly of ______ & ______

Answer BankMethane

Iron & silicaGassyfaster

SmallerrockyCloser

Hydrogen & Helium

Bellwork