| A | B |
|---|
| radio | ____________ telescopes are giant dishes on Earth's surface |
| served us nachos | My very excellent mother just _______________ ___________________ ______________ |
| Saturn | This planet has a very noticeable large set of rings |
| Venus | This planet has the hottest surface in the solar system because its atmosphere is made mostly of carbon dioxide which holds in heat |
| Mars | This planet has the highest mountains and largest canyon system in the solar system |
| craters | bowl shaped holes |
| comet | A _____________ is a mixture of ice, dust, and rock that moves around the Sun. |
| moon | The Earth's _____________ is the only place in the solar system that humans have visited |
| Jupiter | Saturn and _____________ have no landing surfaces and therefore it is not possible to land a spacecraft on either |
| Mercury | This planet is closest to the Sun |
| Neptune | This planet is farthest from the Sun |
| telescope | an instrument that makes distant objects seem larger and nearer |
| Hubble | The ______________ telescope was placed into orbit in 1990 |
| planet | a large object that orbits a star |
| inner | ___________planets are closer to the Sun than the asteroid belt and have surfaces made of rock |
| outer | ____________planets are beyond the asteroid belt and have surfaces made of gases |
| Jupiter | This planet has a Great Red Spot that is a huge storm that has blowing continuously for over 400 years |
| Venus | This planet has violent volcanic activity and long rivers of lava |
| moon | A ___________ is a natural object that orbits a planet |
| satellite | A __________ is an object in space that circles around another object |
| artificial | Objects that are put into space by people that orbit the Earth and other planets are ________________ satellites |
| asteroid | A(n) _______________is a rock that revolves around the Sun. Most located between Mars and Jupiter in the asteroid belt. |
| meteoroids | _________________ are other small objects in the solar system. If they enter Earth's atmosphere they are called meteor |
| meteorite | When a meteor hits the ground it is called a _________________ |
| probe | A space ______________is a vehicle carrying instruments that is sent from Earth to explore an object in space |
| eight | The solar system includes ____________ planets that orbit the Sun |
