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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 B4.5 billion years ago C1 million 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?

Aa meteor shower Ba tremendous explosion Cnuclear fusion Dgravity

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

Aswirling clouds condensed and gave off tremendous energy Bthe huge sphere exploded and debris filled the universe 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

Athe planets Bother suns Canother galaxy Dother stars

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

APluto BNeptune CMercury DMars

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

AMars BSaturn CVenus DUranus

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

ASaturn BJupiter CNeptune DMercury

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

AJupiter BNeptune CSaturn DUranus

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

Athe terrestrial planets Bour solar system CPluto Dthe gas giants

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

AMars BVenus CMercury DPluto

*select an answer for all questions

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