Question | Answer |
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 |