Earth Science Post Test Review

(E-ESS1-1) What is the source of energy for the Sun?

• hydrogen fusion
• internal combustion
• nuclear fission of metals
• burning of solar gases

(E-ESS1-2) As part of the modern theory of the origins of the elements, it is hypothesized that before the formation of the stars, most of the matter in the universe consisted of what atoms?

• nitrogen and carbon
• hydrogen and helium
• silicon and lithium
• uranium and radium

(E-ESS1-3) Stars begin their life cycle in _______.

• a black hole.
• a nova.
• a nebula.
• a supernova.

(E-ESS1-2) Astronomers viewing light from distant galaxies observe a shift of spectral lines toward the red end of the visible spectrum. This shift provides evidence that _______.

• orbital velocities of stars are increasing.
• Earth's atmosphere is warming.
• the sun is cooling.
• the universe is expanding.

(E-ESS1-3) Which element does this unknown star contain?

• beryllium
• copper
• manganese
• strontium

(E-ESS1-3) Which TWO elements are present in the unknown sample? (Choose TWO)

• Element A
• Element B
• Element C
• Element D

(E-ESS1-3) Which of the four stars shown has the largest diameter?

• star A
• star B
• star C
• star D

(E-ESS1-1) Nuclear fusion takes place in which layer of the sun?

• Layer 3
• Layer 4
• Layer 5
• Layer 6

(E-ESS1-1) According to the diagram, which type of electromagnetic radiation has the longest wavelength?

• radio
• gamma
• infrared
• ultraviolet

(E-ESS1-3) To classify a star by color and temperature _________.

• the hottest are red; the coolest are blue-white
• yellow stars like our Sun are hottest
• the hottest are blue; the coolest are red
• the hottest are white; the coolest are red