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Timeline Quiz

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Total cards: 18•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (18)

#1
Front (Question)

Big Bang

Back (Answer)

• 14 bya • explosion • expansion

#2
Front (Question)

Matter

Back (Answer)

all matter was formed a few seconds after BB

#3
Front (Question)

1st stars

Back (Answer)

• 13bya - fusion

#4
Front (Question)

Milky way

Back (Answer)

• 10bya • spiral • stars,planets • gravity

#5
Front (Question)

Solar system

Back (Answer)

• 5bya • 8 planets • rocky and gaseous

#6
Front (Question)

Sun

Back (Answer)

• 4.6 bya - middle of solar system

#7
Front (Question)

T-tauri phase

Back (Answer)

• “shedding” - particles swept away by solar wind

#8
Front (Question)

Inner planets

Back (Answer)

• 4.4 bya • Mercury, Venus, Earth, Mars • rocky, heavier elements

#9
Front (Question)

Outer plantets

Back (Answer)

• 4.4 bya • Jupiter, Saturn, Uranus, Neptune • gaseous

#10
Front (Question)

moon

Back (Answer)

• 500,000 after earth - colossion theory

#11
Front (Question)

core

Back (Answer)

4.35 bya molten iorn

#12
Front (Question)

early atmosphere

Back (Answer)

• 4.4-4.0 bya - ligheter elements

#13
Front (Question)

secondary atmosphere

Back (Answer)

• 4.0-3.3 bya - volcanic gas

#14
Front (Question)

living atmosphere

Back (Answer)

• 3.3 bya - present - photosynthesis= +o2 -co2

#15
Front (Question)

oceans

Back (Answer)

• meteors/volcanic condensation - life

#16
Front (Question)

land

Back (Answer)

• molten • rock=3.8 bya • continents= 2.5bya

#17
Front (Question)

life

Back (Answer)

• 3.5 bya - humans 200,000ya

#18
Front (Question)

Eons

Back (Answer)

• Hadean (Earth forms - 3.8 bya) • Archean (3.8-2.5 bya) • Proterzoic (2.5 bya - 542 mya) • Phanerozoic (542 mya - present)