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Fall Semester Review

Which subatomic particles are in the nucleus of an atom? Neutrons and protons
By looking at the color of a star, astronomers can tell about the- temperature of the star
When the wavelength gets longer, what happens to the frequency? The frequency gets higher
What are galaxies made of? Dust, gas, stars, planets, and satellites
Which of the following is an example of a compound? A. Oxygen B. Helium C.NaCl D.2Fe C. NaCl
How does Newton's first law affect someone who is not wearing a seatbelt during a sudden stop? THe passengers continue to move forward after the car has stopped.
True or False: The sun is the biggest star in the Milky Way galaxy. False
Is burning a candle an example of a chemical reaction? Yes
How long is a light year? 6 trillion miles
How many valence electrons do the noble gasses have? 8
What is the top of the wave called? Crest
What is the difference between speed and velocity? Speed is is distance over time and velocity is distance over time in a specific direction.
How many groups are on the periodic table? (not including the transition metals) 8
What do the groups tell you about an element? The number of valence electrons
How many protons does the Argon atom have? 18
Created by: team_awesome