Solar System Knowledge Check #1

Test your solar system knowledge! Quiz covers sun, earth, moon, seasons & more.

Vocabulary Matching: identify the correct vocabulary word by selecting the correct term to fill in the blanks below. 1) Solar system: consists of the sun and everything that travels around or orbits the sun.2) Sun: the only star in our solar system.3) Earth: one of eight planets that revolves or orbits around the sun.4) Moon: a large natural object that orbits or travels around the Earth.5) A year: the length of time it takes for the Earth to make one revolution around the sun.6) The seasons: caused by the tilt of the Earth; as it travel parts of the Earth are closer or further from the sun. Sun Earth and Moon Sort Click the Descriptions below one at a time. Decide if it describes the sun, the Earth or the moon. Then, click the correct heading. Sun Made of gases (including hydrogen and helium) Eight planets orbit around it 100 times as wide as Earth Produces heat and light 93,000,000 miles from Earth Major source of energy for our solar system Earth Revolves or orbits around the sun Takes one year to complete one revolution Can support life Contains liquid water and an atmosphere Gravity allows organisms, objects and water to be pulled towards it Moon The object moving around the Earth causes tides Takes 29 days to complete one revolution Has less gravity than the Earth Composed of rock and has no atmosphere Revolves or orbits around the Earth Seasons Look at the Earth in the images below. Based on the position of North America relative to the sun, label the images "winter" or "summer" by click on the blue dot and typing in the words. winter summer Star Comparison Click on each cell of the table, then click the correct description for that cell. Star Type of Star Relative Size Important Fact Sun yellow dwarf star 100 times as wide as the Earth The only star in our solar system Arctaurus red giant star 25 times bigger than the sun Appears smaller than the sun because it is further away. 61 Cygni blue dwarf star 66% of the size of the sun Smallest star still visible from Earth