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Our Solar System

Test Description: 1. how it formed 2. the planets

Instructions: Answer all questions to get your test result.

1) When did our Solar System start developing?

A5.7 billion years ago B1 million years ago C4.5 billion years ago D3 million years ago

2) After the nebula, from which our solar system formed, condensed, what force helped draw particles together into clumps?

Anuclear fusion Ba meteor shower Ca tremendous explosion Dgravity

3) Our star, the Sun, began to shine when

Athe huge sphere exploded and debris filled the universe Bswirling clouds condensed and gave off tremendous energy Cheat and pressure inside the huge sphere started a chain of nuclear reactions Dcondensation caused nuclear reactions which gave off sunlight

4) After our Sun formed, the remaining gas and dust formed

Aanother galaxy Bother stars Cother suns Dthe planets

5) Which member of our solar system is best described as being neither a rocky planet or a gas planet?

AMars BPluto CNeptune DMercury

6) The planet with a tilted axis that points directly to the Sun best describes

AUranus BSaturn CVenus DMars

7) Which planet is best known for its spectacular rings?

ANeptune BMercury CSaturn DJupiter

8) Which is the largest planet that is about 1,400 times the size of Earth?

ANeptune BSaturn CUranus DJupiter

9) Enormous spheres of gas such as hydrogen, helium, methane with no solid surfaces best describes

Athe gas giants Bour solar system Cthe terrestrial planets DPluto

10) The farthest rocky planet from the Sun that may have had microscopic life at one time

AMars BMercury CVenus DPluto

*select an answer for all questions

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