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Science Quiz Planets
Planets
31
Science
5th Grade
03/02/2021

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Cards

Term
What is the equinox?
Definition
occurs when the position of the sun is exactly over the equator.
Term
What days does equinox occur on?
Definition
March 21st & September 23
Term
Explain the difference between the winter and summer solstices.
Definition
The winter solstice, is the shortest day of the year, when the Earth's North Pole is tilted farthest from the Sun. The summer Solstice is the longest day when the Earths north pole is tilted closest to the sun.
Term
Mercury is the ______ planet from the Sun.
Definition
first
Term
Which of the following best describes the surface of Mercury?
Definition
Barren and rocky with lots of craters
Term
Around how big is Mercury's mass when compared to the mass of the Earth?
Definition
5.5% of the Earth's mass
Term
Around how long is a day on Mercury?
Definition
58.7 Earth days
Term
Mercury is the ______ planet in the Solar System.
Definition
smallest
Term
Why does Mercury have such extremes in temperature?
Definition
Because it's day is so long, it has little atmosphere, it is so close to the Sun
Term
Mercury was named after what Roman god or goddess?
Definition
Roman messenger to the gods
Term
Mercury is more similar to the Earth's Moon in size and surface than to planet Earth
Definition
True
Term
Why is it difficult to send space craft to Mercury?
Definition
Because it is so close to the Sun
Term
Venus is the ______ planet from the Sun
Definition
2nd
Term
What type of planet is Venus?
Definition
Terrestrial planet
Term
Which of the following best describes the surface of Venus?
Definition
Cloudy and hot with lots of volcanoes
Term
Around how big is Venus' mass when compared to the mass of the Earth?
Definition
82% of the Earth's mass
Term
Around how long is a day on Venus?
Definition
243 Earth days
Term
True or False: Much of the surface of Venus is covered in water.
Definition
False
Term
Why is Venus the hottest planet in the Solar System?
Definition
Because it has a thick atmosphere of mostly carbon dioxide
Term
Venus was named after what Roman god or goddess?
Definition
Goddess of love
Term
What planet is Venus most similar to in terms of mass, size, and gravity?
Definition
Earth
Term
Venus is the ______ planet in the Solar System
Definition
6th
Term
Mars is the ______ planet from the Sun.
Definition
4th
Term
Which of the following best describes the surface of Mars?
Definition
Cold, rocky, and covered in red dust
Term
Around how big is Mars' mass when compared to the mass of the Earth?
Definition
11% of the Earth's mass
Term
Around how long is a day on Mars?
Definition
24.6 hours
Term
Mars was named after what Roman god or goddess?
Definition
God of war
Term
Mars is the ______ planet in the Solar System.
Definition
Second smallest
Term
Where does the Moon get its light?
Definition
By reflecting light from the Sun
Term
How much of the Moon is continuously lit up?
Definition
50%
Term
What is the phase of the Moon when 100% of the Moon is lit up?
Definition
Full moon
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