​Our SUN

• ​The hottest part of the sun is its _________ - reaching up to 15 million degrees!

• ​The sun fuses _________ into ________

• ​The sun appears to be approximately ______ billion years old.

​Mercury

​Venus

​Earth

• ​Dense, ________ core

• ​Permanent _________ water

• Only planet with _________

• ​Largest _______ to _______ ratio

Mars

• _____ color due to _______ rocks and dust

• ​Used to be wet with ________, ________ atmosphere, and ________ climate

• ​No _________ field

• No protection from _______ wind eroded atmosphere away

Jupiter

• Past ________ belt

• ​Gas giant

• ​Largest planet

• ​Dynamic ________

• ​Great red spot

  • Giant __________

  • 3x size of ________

Saturn

• _____ Giant

• ​Broad set of rings

  • ​_______m thick

  • ​Made of ________ particles

• ​Less dense than _______ (would float!)

Uranus

• Small ______ core

• ​Thick mantle of _______, water, _______

• ​______ rings

• ​_______ tilt to rotational axis

  • ​possibly due to _____________________

Neptune

• _____ giant

• ​most ______ of outer planets

• ​1st found not by observation but by __________

• ​Outside its orbit lies the _______ belt, including Pluto