1. Which star is brighter? Aldebaran or Betelgeuse 2. Which star is cooler? Rigel or Mira

3. Which star is larger in size? Polaris or Alpha Centauri B

4. Which star has a higher temperature? Tau Ceti or Procyon B

5. Which star is hotter? Regulus or Deneb

6. Which star is smaller in size? Sun or Antares

7. Which star is hotter? Altair or Rigel

8. Which star is dimmer? Antares or Sun

9. Which star is larger in size? Deneb or Mira

10. Which star is higher in temperature? Altair or Alpha Centauri A

11. Which star is hotter? Spica or Vega

12. Which star is a white dwarf? Procyon or Procyon B

What is the formula for the molecular compound nitrogen monoxide

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet