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What kinds of things do scientists date using Radiometric dating with Carbon-14? Why?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
What does it mean that the earth “differentiated”?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
How old do scientists believe the earth is?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
How do scientists believe the earth was formed?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
When scientists look at many layers of rock on top of each other, how do they figure out which are the oldest and youngest layers?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
What do scientists believe produced the first BREATHABLE amounts of oxygen?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
To determine the age of the earth, scientists dated rocks from where?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
What kinds of things do scientists date using Radiometric dating with Uranium-238? Why?
Only Rocks because Uranium takes a long time to decay, so it can date really old rocks.
4.54 billion years
Scientists believe the first oxygen came from bacteria that lived all over the oceans.
Differentiated means that the earth formed its layers (of different densities).
Oldest rocks are on bottom, youngest rocks are on top AND layers that cut through others are younger
Scientists believe the earth was formed after the Big Bang, when debris was flying everywhere.
Only fossils because rocks were never living, so they don't lose Carbon 14 over time.
From the earth, meteorites, and the moon
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