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OCSCIENCESPRINGFINAL

QuestionAnswer
The Earth’s rotation takes about 24 hours
One complete revolution of Earth around the sun takes about one year
Which color star indicates the hottest surface temperature blue
Covalent Bonds are when atoms do what? share electrons
What is the shape of the Milky Way galaxy? spiral
The moon has no atmosphere because of its relatively weak what? Gravity
pH is a scale that measures whether something is an acid or a what? Base
Conservation of mass states that The amount of matter in a chemical rxn doesn't do what? change
A solar eclipse can only occur during what phase? new moon
Atoms with 3 valence electrons will tend to bond with atoms that have how many valence electrons? Five
What is a cluster of stars, nebulae, gases,dust, and planets? Galaxy
Carbon can form bonds of single, double and what else? triple
If 4 grams of Ca reacts with 10 grams of Oxygen, then the mass of the products will be what? 14 grams
The two most abundant elements on the sun are Helium and what other element? Hydrogen
Created by: cwsqred
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