Stars Answers

Which statements describe properties of stars? Check all that apply.Stars produce energy through nuclear fusion.Stars produce energy through gravity.Stars are massive objects composed of gas.Stars are solid objects that we could stand on.Stars are composed primarily of hydrogen and helium.Stars are composed primarily of liquids such as water.

The color and temperature of stars are closely related. Which color star is the hottest?

Use the drop-down menus to identify which of these stars is the smallest, which is the largest, and which is in the middle. Supergiant: Neutron star: White dwarf:

Which statements describe how stars are born? Check all that apply.Stars are born in clouds of gas and dust called nebulas.The gas and dust are pulled together by gravity.If the cloud that is pulled together has enough mass, a red giant is formed.The pulled-together cloud collapses and becomes hot and dense.Heat and pressure cause nuclear fusion, which signals the birth of a star.

This image shows a nebula. What would most likely be found in a nebula?

Which statements describe the death of stars? Check all that apply.

Use the drop-down menus to complete the statements about the death of stars. When a supergiant explodes, a occurs. A supernova may leave behind a , which is the size of a large city. When the outer portion of a red giant expands and is blown away, a is left behind. The most-massive stars may become , which are not directly detectable.