Question | Answer |
The FOUR inner planets are _______ and ____ and have ____ surfaces. | SMALL and DENSE, ROCKY |
The inner plants are known as the _______ planets | TERRESTRIAL |
The 4 inner planets are | MERCURY, VENUS, EARTH AND MARS |
Earth has ___ main layers: | 3, CRUST, MANTLE and CORE |
Earth is the ONLY planet that has liquid ____ on its surface. | WATER |
Earth is about _____% covered in ________ | 70%, WATER |
____is found in Earth's atmosphere, it makes up about ____% of the atmosphere | OXYGEN, 20% |
Other gases are ____, ____, and _____________. | NITROGEN, ARGON AND CARBON DIOXIDE. |
_________ in a gaseous form is called ___________ | WATER, WATER VAPOR |
Mercury is the _______ terrestrial planet and the planet _____ to the ________. | SMALLEST, CLOSEST, SUN |
Mercury is not much larger than _________ moon. | EARTH's |
Missions to Mercury: ________ and _________. | MARINER 10, MESSENGER |
The surface has many ______ which are named after ______, _____ and musicians | CRATERS, ARTISTS, WRITERS AND MUSICIANS |
Mercury has virtually _____ atmosphere | NO |
Due to Mercury's low ____ it has ______ is ________ | MASS, GRAVITY, WEAK |
Mercury has the _______ temperature _______; High temps of ______ and low temps of ________ | GREATEST, RANGE, 430 DEGREES C, -170 DEGREES C |