Astronomers will enjoy learning about the planets, stars and moons in these printable flash cards.
There are 35 flash cards in this set (6 pages to print.)
To use:
1. Print out the cards.
2. Cut along the dashed lines.
3. Fold along the solid lines.
Sample flash cards in this set:
| Questions | Answers |
|---|---|
| Astronomy | Study of the stars, planets, and all other heavenly bodies. |
| Astronomer | Scientist who studies outer space |
| Vacuum | An area containing no air or any other matter. |
| Friction | The force that resist motion. |
| Galaxy | A star system containing millions to billions of stars. |
| Milky Way | The galaxy in which we live. |
| Local Group | The cluster of about 40 galaxies that includes the Milky Way. |
| Barred Spiral | A spiral galaxy in which the spiral arms are attached to a straight "bar" that runs through the center of the galaxy. |
| Nebulae | Large clouds of gas and dust in space. |
| Constellation | The stars outlining and imaginary picture in the sky. |
| Axis of Rotation | An imaginary line that stretches from pole to pole through the interior of a planet, around which the planet rotates. |
| Photosphere | "Sphere of light" visible surface of sun. |
| Sunspots | Darker spots that move slowly across the face of the sun as the sun rotates. |
| Solar Eclipse | When the earth's moon passes in front of the sun, blocking the sun's light. |
| Chromoshpere | Part of the sun's atmosphere closest to the sun's surface. delicate pink or orange color. "sphere of color" |
| Corona | A haze of very hot gases that extends hundreds of thousands of miles from the surface of the sun. |
| Nova | An occurrence when a star suddenly flares up to many times its original size. |
| Supernova | The actual explosion of a star |
| Orbit | To revolve around |
| Ellipse | Symmetrical shaped oval |
| Foci | Two special points in an ellipse |
| Astronomical Unit | The distance between the earth and sun - 93 million miles |
| Solar Year | The time required for the earth to complete one revolution around the sun. 365 1/4 days |
| Atmosphere | The blanket of air that makes the earth hospitable for living things. |
| Ozone Layer | A region of atmosphere that filters most of the harmful ultraviolet radiation from the sun. Located between 10 and 30 miles above the earth's surface. |
| Greenhouse Effect | The ability of the earth's atmosphere to retain heat around the earth. |
| Maria | "Seas:" large, dark plains on the surface of the moon. |
| Lunar Month | The time it takes the moon to complete a full cycle in its orbit around the earth |
| Period | The time it takes for a comet to complete an orbit around the sun |
| Order of the Eight Planets | Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune |
| 3 Parts of a Comet | Nucleus, coma, tail |
| Phases of the Moon | New moon, crescent phase, first-quarter moon, gibbous phase, full moon, third-quarter moon |
| Visible Spectrum | The color sequence that appears when white light is passed through a prism: red, orange, yellow, green, blue and violet |
| Electric Field | A region in which certain objects may be attracted or repelled by an electric force. |
| Wave | a movement of energy from one place to another. |
