| A | B |
|---|
| Rocky objects orbiting the sun are called: | asteroids |
| Saturn's surface is made of: | gases |
| Which planet has the warmest temperature? | Venus |
| Which gas is found more often in Venus's atmosphere? | carbon dioxide |
| Which planet is the brightest in our sky? | Venus |
| What do Mars and Jupiter have orbiting between them? | asteroids |
| Due to Mercury's lack of atmosphere, its temperature at night is: | cold |
| The Martian sky appears as what color? | pink |
| Which of the following is considered to be an outer planet? | Jupiter |
| Which planet is the second largest planet in our solar system? | Saturn |
| How many meters per second do the winds on Saturn move near the equator? | 500 |
| The rings that orbit Saturn are made of ice and: | rock |
| Uranus gets its blue-green color from what gas? | methane |
| If it takes Uranus 84 Earth years to orbit the Sun and it takes Saturn 29.5 Earth years, what is the mean of their two lengths of time? | 56.75 years |
| Which outer planet has the largest rings: | Saturn |
| To be considered a star, an object must produce its own energy, including light and: | heat |
| A beginning star is called a: | protostar |
| What fuel produces the energy in the sun? | hydrogen |
| When all this element is gone, a star begins to cool and shrink. | helium |
| To find a location on Earth, you can use longitude and: | latitude |
| Which planet is the largest inner planet? | Earth |
| A year on Mercury is: | shorter than a year on Venus |
| If you are lost, which star would be best to follow if you want to go north? | Polaris |
