Ess 1

What were the original two elements in our universe?

• Hydrogen and Lithium

• Helium and Oxygen

• Helium and Hydrogen

• None of the above

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8.ESS1.1

The red-shift in the spectral lines of light, reaching us from other galaxies implies that these galaxies ____________.

• Are moving closer to one another

• Are moving farther apart from one another

• Are in rapid rotation

• Redshift doesn´t exist

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8.ESS1.1

The initial explosion that resulted in the formation and expansion of the universe is called __________________.

• the Big Bang

• the start of the universe

• the beginning

• the formation of space

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8.ESS1.1

How is the universe like rising raisin bread dough? Or, like a ballon with dots on it?

• As the dough sits there it becomes smaller and smaller.

• As the dough expands the raising bunch up together.

• As the dough contracts, it become ready for the oven.

• As the dough expands, the raisins move further apart from each other.

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8.ESS1.1

In which direction are nearly all galaxies moving?

• toward each other

• away from each other

• colliding into one another

• in the direction of Earth

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8.ESS1.1

leftover thermal energy from the big bang

• solar nebula

• cosmic background radiation

• planetesimal

• dark matter

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8.ESS1.1

If an object is moving toward us, its spectrum will experience

• no shift
• red shift
• black spectrum
• blue shift

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8.ESS1.1

What element made up about 74% of the universe

• Hydrogen

• Helium

• Oxygen

• Carbon

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8.ESS1.1

What is the second most abundant element in the Universe?

• Hydrogen
• Helium
• Cargon
• Oxygen

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8.ESS1.1

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

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8.ESS1.1