Which evidence of the giant impact theory suggests that Earth and the moon may have once been in the same place?U2L9

the composition of moon rocks and some Earth rocks are similar

Which is correct about fossils location and age? U2L10

fossils found in low rock layers are older than those found in upper layer

Which best supports the evidence that an asteroid collision may have caused the extinction of dinosaurs? U2L10

rare metal on Earth, Iridium is found in layers where dinosaurs diappeared

What prevents the gravity of the sun to pull all of the planets towards it? U2L8

the planets' speed as they orbit the sun

Which theories propose the formation of Earth? U2L9

The Core Accretion Theory and the Disk Instability Theory

Which allowed scientists to determine that Earth was at least 4.3 billion years old? U2L9

radioactive decay of uranium to lead

How were the planets in the solar system formed? U2L8

the materials left from the sun's formation clumped due to gravity

Why is deuterium oxide called “heavy water”? U2L9

its hydrogen atoms are heavier than others

Why are time periods on the geologic time scale not even in length? U2L10

they are based on important events that happened in Earth's history

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Science 6A Solar System U2L8-11

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1
Which evidence of the giant impact theory suggests that Earth and the moon may have once been in the same place?U2L9
the type of gases in the atmosphere s of Earth and the moon is the same
the composition of moon rocks and some Earth rocks are similar
the amount of water on the moon and on Earth is similar
The temperature on Earth and on the moon are similar
2
Which is correct about fossils location and age? U2L10
fossils found in rock layers closest to Earth's surface are the oldest
fossils found in low rock layers are older than those found in upper layer
fossils found in among numerous other fossils are most recent in age
fossils found in rock layers that have been disturbed are the oldest
3
Which can be excluded due to the absence of fossil records? U2L10
the shell of a crab
the body of a jellyfish
the shell of a snail
a dinosaur's backbone
4
Which best supports the evidence that an asteroid collision may have caused the extinction of dinosaurs? U2L10
Many dinosaur skeletons are found in one particular rock layer
rare metal on Earth, Iridium is found in layers where dinosaurs diappeared
bodies of dinosaurs are only found in craters where asteroids collided
dinosaur fossil remains are found at the bottom of a body of water
5
What prevents the gravity of the sun to pull all of the planets towards it? U2L8
the planets' speed as they orbit the sun
the sun's weak gravity
the large distance of the planets from the sun
the size and shape of the planets around the sun
6
Which change in the sun’s gravity would occur if the sun’s mass were reduced by one-half? U2L8
it would be unchanged
it would be doubled
it would be halved
it would be zero
7
Which theories propose the formation of Earth? U2L9
The Theory of Plate Tectonics and Hubble Law
The Big Bang Theory and Newton's Law of Gravity
Cell Theory and Atomic Theory
The Core Accretion Theory and the Disk Instability Theory
8
Which allowed scientists to determine that Earth was at least 4.3 billion years old? U2L9
magnetic field surrounding zircon
radioactive decay of uranium to lead
chemical reactivity of zircon ions
the electrical conductity of uranium ions
9
How were the planets in the solar system formed? U2L8
the materials left from the sun's formation clumped due to gravity
the solid materials were forced out of sun's disc and cooled down
the dust particles were attracted by gravity from distant glaxies
the gas particles released by the sun were pulled away and became solid
10
How long ago do scientists think the solar system formed? U2L9
4.3 million years ago
4.6 billion years ago
2.6 billion years ago
6.2 billion years ago
11
Why is deuterium oxide called “heavy water”? U2L9
its oxygen atoms are heavier than others
its hydrogen atoms are heavier than others
it has extra hydrogen atoms
it has extra oxygen atoms
12
Why are time periods on the geologic time scale not even in length? U2L10
they are based on the type of fossils found in rock layers of the Earth
they are based on important events that happened in Earth's history
they are based on the thickness of the Earth's rock layers
based on a different type of calendar used to track Earth's history
13
What was created when 99% of the gas and dust gathered into the center of a disc during the formation of solar system?
the sun
the asteroid belt
the planets
the moons of planets

Science 6A Solar System U2L8-11 Flashcards | StudBud