1. S CIENCE U NIT D C HAPTER 1 THE SOLAR SYSTEM

2. L E S S O N 1 What Are Stars and Planets ?

3. A GROUP OF STARS THAT FORM A STAR PICTURE IS CALLED A _________. constellatio n

4. ____ ARE MUCH BIGGER THAN THE E ARTH. Stars

5. A STAR IS A BIG BALL OF _______. hot gases

6. S TARS ARE DIFFERENT ________, _____, AND __________. temperatures sizes distances

7. T HE GASES OF A STAR GIVE OFF TWO KINDS OF LIGHT :________( SOLAR ENERGY ) AND __________. light energy heat energy

8. P EOPLE USE _______ TO LOOK AT THE NIGHT SKY BECAUSE STARS LOOK CLOSER AND LARGER. telescopes

9. T HE E ARTH IS IN THE _________G ALAXY. Milky Way

10. O UR SOLAR SYSTEM HAS _____, WHICH ARE FROZEN BALLS OF DIRTY ICE. comets

11. A ____ IS MADE UP OF MILLIONS OF STARS THAT ORBIT THE SAME CENTER. galaxy

12. _____, OR THE N ORTH S TAR, CAN BE FOUND AT THE END OF THE HANDLE OF THE L ITTLE D IPPER. Polaris

13. O UR SOLAR SYSTEM HAS ______, THAT TRAVEL AROUND THE SUN. planets

14. P EOPLE LONG AGO USED THE ________ LIKE A COMPASS, BECAUSE IT IS LOCATED ABOVE THE N ORTH P OLE. North Star

15. S TARS LOOK SMALLER BECAUSE THEY ARE SO _______. far away

16. T HE ____ IS THE STAR CLOSEST TO THE E ARTH. sun

17. W E HAVE _____ PLANETS IN OUR S OLAR S YSTEM. eight

18. O UR SOLAR SYSTEM HAS _________, WHICH ARE CHUNKS OF ROCK OR METAL. asteroids

19. T HE PLANETS ARE _______,_____,____ ____,______,____, ______, AND _______. Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

20. A _____ IS A LARGE BALL OF ROCK OR GAS THAT TRAVELS AROUND THE SUN. planet

21. R EMEMBER THIS SENTENCE …. M__ V___ E___ M____ J___ S____ U__ N___.

22. O UR SOLAR SYSTEM HAS ____, THAT DO NOT GIVE OFF LIGHT OF THEIR OWN. moons

23. O UR SOLAR SYSTEM HAS _________, WHICH ARE SMALL CHUNKS OF ROCK OR ICE. meteoroids

24. O UR SOLAR SYSTEM HAS A ___, WHICH IS A HOT GLOWING BALL OF GAS. sun