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28 Cards in this Set
- Front
- Back
Name the objects in our solar system.
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Objects in our solar system are ...
- stars, - planets, - moons, - asteroids, and - comets. |
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How are the length of a year and the planet's distance from the sun related?
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The planet's year and distance from the sun are related as ...
a planet's year is shorter the closer its orbit is to the sun, because it travels around the sun more quickly. The distance of the orbit around the sun is shorter. |
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What is a sunspot?
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A sunspot is...
- a dark area that is cooler than the rest of the sun's surface and - that does not give off as much heat. |
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Why is Earth's rotation important to our planet?
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Earth's rotation on it's axis causes day and night.
The side of the Earth that faces the sun has... -day and the opposite side has night. |
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What is a solar system?
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A solar system is a group of objects that move around a central star.
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What is a year?
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A year is the time taken to complete on complete orbit by a planet around the sun.
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What is are prominences?
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Prominences are ...
- red streams and loops of gases that shoot out from the sun's surface. - These hot fountains often occur near a sunspot. - Prominences and sunspots usually last a few days, however some have been known to last a few months. |
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What is an example of an orbit?
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An example of an orbit is..
a planet (an object) travels in a path around a sun (a second object). |
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What are two features of the sun's surface?
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Two features of the sun's surface are ...
- sunspots and - prominences. |
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Where in our solar system are the planets with faster orbits?
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Planets with orbits closer to the sun move faster around the sun than those with orbits that are farther away.
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What are characteristics of our sun?
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Our sun is...
- the largest object in our solar system, - a fiery ball more than 1 million kilometers (621,000 miles) in diameter, - provides almost all of the energy in our solar system. - |
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Science : Our Solar System
Jonathan Sams Pine View School Fourth Grade Ms. Noonan |
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The sun provides what type form of energy to Earth?
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The sun provides energy in the form of light and heat to Earth.
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Are orbits around planets circles?
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No, orbits around planets are not circles. Orbits are slightly elliptical or oval in shape.
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What is an example of a large star in our solar system?
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Our sun is an example of a large star.
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What is an orbit?
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An orbit is the path an object takes when it revolves aroung another object.
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What is a star?
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A star is a burning sphere of gases.
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What happens when a comet's orbit takes it close to the sun?
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When a comet's orbit takes it close to the sun, some of the ice on the comet's surface changes to water vapor and streams out to form a long, glowing tail.
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What is a moon?
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A moon is a natural satellite or object that moves around a planet.
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What is the imaginary line that runs through both poles of a planet?
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The axis is the imaginary line that run through both poles of a planet.
As Earth revolves around the sun, it spins, or rotates, around a imaginary line. |
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What is a planet?
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A planet is a large object that moves around a star.
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What is our solar system made up of?
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Our solar system is made up of ...
- the sun, - nine planets and their moons, - asteroids and comets. |
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What are the names of the planets in our solar system from nearest to farthes?
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The planets in our solar system from nearest to farthest are ...
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. |
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What is an asteroid?
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An asteroid is a small rocky object that moves around the sun.
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The sun is the largest object in our solar system. What is the next largest object in our solalr system?
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Juptier is the next largest object in our solar system after the sun.
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What is a comet?
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A comet is a small mass of dust and ice that orbits the sun in a long, oval-shaped path.
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What do some scientists believe that asteroids are?
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Some scientists believe that asteroids are pieces of a planet that never formed.
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What percent mass is the sun of our solar system?
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The sun is 99.8% of our solar system.
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