Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
a medium sized cumulus cloud weighs
|
about the size of 80 elephants |
|
|
the big dipper is not a constellation, it's an |
asterism |
|
|
asterism |
pattern of stars in the sky which is not part of the 88 constellations |
|
|
the earth orbits the sun at _______ mph |
66,700 |
|
|
all of space is completely
|
silent
|
