Glencoe Online Science Quiz Chapter

Section #: 30.1 The Sun

Practice Test


	1.	What are dark spots on the Sun's photosphere called? SC.E.1.4.1

		a.	solar flares
		b.	sunspots
		c.	solar winds
		d.	auroras
	Hint


	2.	What layer of the Sun's atmosphere is above the chromosphere? SC.E.1.4.1

		a.	corona
		b.	troposphere
		c.	photosphere
		d.	stratosphere
	Hint


	3.	Gas flows outward from the corona and forms the __________. SC.E.1.4.1

		a.	solar wind
		b.	solar flare
		c.	sunspot
		d.	aurora
	Hint


	4.	Why do astronomers rely on computer models for an explanation of the Sun's interior? SC.E.1.4.1

		a.	The interior can't be directly observed.
		b.	The interior is only visible during a solar eclipse.
		c.	to remove the effects of the solar wind
		d.	They need more than the observations of the interior.
	Hint


	5.	What two elements make up 98.4 percent of the Sun's composition? SC.E.1.4.1

		a.	oxygen and helium
		b.	hydrogen and carbon dioxide
		c.	hydrogen and helium
		d.	hydrogen and nitrogen
	Hint


	6.	The lowest layer of the Sun's atmosphere is called the __________. SC.E.1.4.1

		a.	troposphere
		b.	chromosphere
		c.	lithosphere
		d.	photosphere
	Hint


	7.	Look at the periodic table in the figure. What is unique about the two elements that compose most of the Sun's gases? SC.E.1.4.1

		a.	They're both metals.
		b.	They're the two smallest elements.
		c.	They're both radioactive.
		d.	They're very heavy elements.
	Hint


	8.	The Sun contains __________ percent of all the mass in our solar system. SC.E.1.4.1

		a.	99
		b.	100
		c.	10
		d.	1
	Hint


	9.	Which zone of the Sun moves energy through radiation? SC.E.1.4.1

		a.	photosphere
		b.	convective
		c.	radiative
		d.	corona
	Hint


	10.	What is the Sun's average density similar to? SC.E.1.4.1

		a.	the density of the entire solar system
		b.	the density of the gas giant planets
		c.	the density of the rocky planets
		d.	the density of water
	Hint


	11.	Where does the Sun's energy originate in the figure? SC.E.1.4.1

		a.	A and C
		b.	B
		c.	A
		d.	C
	Hint


	12.	From where on the Sun does the solar wind escape? SC.E.1.4.1

		a.	photosphere
		b.	solar flares
		c.	sunspots
		d.	coronal holes
	Hint


	13.	__________ is the combining of light weight nuclei into heavier nuclei, which gives off energy that fuels the Sun. SC.A.2.4.4 SC.C.2.4.4

		a.	Fusion
		b.	Radiation
		c.	Fission
		d.	Division
	Hint


	14.	What is a spectrum that comes from noncompressed gas called?SC. SC.E.1.4.1

		a.	rainbow
		b.	an emission spectrum
		c.	corona
		d.	sunspot
	Hint