Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/24

Click to flip

24 Cards in this Set

  • Front
  • Back
An enormous collection of stars arranged in a particular shape is called a ______.
galaxy
A grouping of stars named after mythical figures and animals is called a _____.
constellation
Stars are hot bodies of gases composed of _____ and ______.
hydrogen,helium
Small amounts of gravity or low gravity are called ______.
microgravity
Galaxies contain giant clouds made of gas and dust which are called?
nebulae
Radiation belts filled with charged particles
Van Allen belts
Region beyond the Earth's atmosphere where there is very little molecular activity
Space
A region in space where no radiation is emitted ____ _____.
black hole
When a meteoroid enters into the Earth's atmosphere it is called a _______.
meteorite
The only planet to rotate in a clockwise manner is ______?
Venus
Which planet is a dark and frozen planet 4 billion miles from the Sun?
Pluto
Which planet is known as the windiest planet in the solar system?
Neptune
A small icy body orbiting the sun is called a _____.
comet
A small rocky body orbiting the sun is called an _______.
asteroid
Short-lived high energy discharges are called ____ ____.
solar flares
Darker, cooler areas of the sun are known as ______.
sunspots
Large energy discharges that are thousands of miles high and last for months are called _____ ________.
solar prominences
The closet planet to the Sun?
Mercury
This planet is known as the Red Planet?
Mars
In July 1997, the space probe Pathfinder landed on Mars. The Pathfinder's rover ______ ______ began its exploration of the planet.
Sojourner Truth
The largest planet in the solar system?
Jupiter
This planet has seven distinct rings round it.
Saturn
This planet has a bluish greenish color because of the methane in its upper atmosphere.
Uranus
The smallest planet in our solar system.
Pluto