Which two elements make up approximately 99% of the mass in our galaxy?

Abundance of Elements in the Universe

Interactive Video
•
Chemistry, Science, Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iron and Magnesium
Hydrogen and Helium
Silicon and Sulfur
Oxygen and Carbon
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the third most abundant element in the galaxy?
Carbon
Nitrogen
Oxygen
Neon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are there for every oxygen atom, approximately?
100
2000
500
1200
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is water not considered a rare substance in the universe?
Because it is made of hydrogen and oxygen, which are abundant
Because it is the most abundant compound
Because it is found in liquid form everywhere
Because it is only found on Earth
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In what form is water most commonly found in the universe?
Frozen
Vapor
Plasma
Liquid
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What element makes up almost half of the Earth's core?
Sulfur
Magnesium
Iron
Silicon
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which two elements are most abundant in rocks?
Oxygen and Silicon
Hydrogen and Helium
Iron and Magnesium
Carbon and Nitrogen
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