QUESTION IMAGE
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
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.
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Section One - Sequencing
- 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
c. black dwarf
a. white dwarf
d. nebula
f. protostar
b. supernova
g. neutron star
e. black hole