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star review section one - sequencing the stages below are not in the ri…

Question

star review
section one - sequencing
the stages below are not in the right order. number the stages in the correct order.
____ the star begins to run out of fuel and expands into a red giant or red super giant.
____ stars start out as diffused clouds of gas and dust drifting through space. a single one of these clouds is called a nebula
____ what happens next depends on the mass of the star.
____ heat and pressure build in the core of the protostar until nuclear fusion takes place.
____ the force of gravity pulls a nebula together forming clumps called protostars.
____ hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine.
section two - vocabulary
match the word on the left with the definition on the right.
____ black dwarf
____ white dwarf a. star left at the core of a planetary nebula
____ nebula b. a red super giant star explodes
____ protostar c. what a medium - mass star becomes at the end of its life
____ supernova d. a large cloud of gas or dust in space
____ neutron star e. exerts such a strong gravitational pull that no light escapes
____ black hole f. the earliest stage of a star’s life
g. the remains of a high mass star

Explanation:

Section One - Sequencing

Step1: Comienzo de la formación

Las estrellas empiezan como nubes difusas de gas y polvo (nebulas), por lo que esta es la primera etapa.

Step2: Formación de protostares

La gravedad une la nebula formando protostares.

Step3: Fusión nuclear

La presión y el calor en el protostar causan la fusión nuclear.

Step4: Encendido de la estrella

La fusión de átomos de hidrógeno hace que la estrella brille.

Step5: Final de la vida

La estrella se agota de combustible y se expande.

Step6: Dependiendo de la masa

Lo que sigue depende de la masa de la estrella.

Section Two - Vocabulary

Step1: black dwarf

Es lo que se convierte una estrella de masa mediana al final de su vida.

Step2: white dwarf

Es la estrella que queda en el núcleo de una nebulosa planetaria.

Step3: nebula

Es una gran nube de gas o polvo en el espacio.

Step4: protostar

Es la etapa más temprana de la vida de una estrella.

Step5: supernova

Es cuando una superestrella roja explota.

Step6: neutron star

Son los restos de una estrella de alta masa.

Step7: black hole

Es un objeto con un tirante gravitacional tan fuerte que no escapa la luz.

Answer:

Section One - Sequencing

  1. The star begins to run out of fuel and expands into a red giant or red super giant.
  2. Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula
  3. What happens next depends on the mass of the star.
  4. Heat and pressure build in the core of the protostar until nuclear fusion takes place.
  5. The force of gravity pulls a nebula together forming clumps called protostars.
  6. Hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine.

Section Two - Vocabulary

c. black dwarf
a. white dwarf
d. nebula
f. protostar
b. supernova
g. neutron star
e. black hole