How big is the Universe?
Check out this cool site. Click on the picture!
Assessment
practice_test.pdf | |
File Size: | 2167 kb |
File Type: |
study_guide.doc | |
File Size: | 105 kb |
File Type: | doc |
understanding_stars.doc | |
File Size: | 44 kb |
File Type: | doc |
Is the International Space Station visible in the sky?
Click on THIS LINK to find out