Concept of Changes in Outer Space

American astronomers ____________________reported that “when we observe a large volume of space, we observe as many galaxies in one direction as in any other and the observation are the same at all distances.

• Sir Isaac Newton

• Galileo Galilei

• Edwin Powell Hubble

• Alfred Wegener

The fact that galaxies are receding from each other at great speed indicates that the universe is definitely ______________

• shrinking

• expanding

• getting smaller

• infinite

Tags

NGSS.HS-ESS1-2

The expansion of the universe supported the

• relativity theory

• law of motion

• big bang theory

• theory of evolution

Tags

NGSS.HS-ESS1-2

It is a cloud of interstellar material made up of dust, hydrogen, and other gases

• planet

• comet

• nebulae

• star

It is believed to provide the material for the future stars.

• black hole

• neutron star

• nebulae

• planets

When a giant star explodes, it throws off large amount of materials. An explosion like that is called _______________

• nuclear explosion

• gamma ray burst

• supernova

• white dwarf star

One of the example that form from this explosion is the Crab Nebula in the constellation of Taurus

• supernova

• blackhole

• neutron star

• comets

Tags

NGSS.HS-ESS1-3

Nuclear fusion convert hydrogen to ____________, releasing energy. At this point energy is born.

• carbon dioxide

• oxygen

• helium

• sulfur

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

The star continues to radiate energy; the length of time involved depends on its mass. For a star the size of our Sun, this stage can probably last for __________ years or a little more

• 10 billion years

• 5 billion years

• 10 million years

• 10, 000 years

Tags

NGSS.HS-ESS1-1

. As nuclear fusion continues, the core of the star begins to contract and heat up. Again, for a star the size of our Sun, the nuclear fusion of hydrogen proceeds faster and faster, releasing energy at a very rapid rate and causing the star to expand, becoming a ______________

• neutron star

• white dwarf star

• red giant star

• black hole

Tags

NGSS.HS-ESS1-1