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 RE MUCH BIGGER THAN THE E ARTH. Stars

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

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 :________( SOL AR 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. A ____ IS MADE UP OF MILLIONS OF STARS THAT ORBIT THE SAME CENTER. galaxy

11. A GROUP OF STARS THAT FORM A STAR PICTURE IS CALLED A ________. constellation

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

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

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

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

16. T HE PLANETS ARE _____,_____,____ ___,_____,______, ______, AND ______. MercuryVenus Earth MarsJupiter Saturn Uranus Neptune

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

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

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

20. O UR SOLAR SYSTEM HAS ______, WHICH ARE CHUNKS OF ROCK OR METAL. asteroids

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

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

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

24. R EMEMBER THIS SENTENCE …. M Y V ERY E AGER M OTHER J UST S ERVED U S N ACHOS.