Activities
1. Copy this paragraph and discover the mistery words.
A lot of s_________ think that the universe w____ born nearly 13.7 years ago with a massive e___________. It was also the beginning of t_______, s_______ and m_______.
In just a few seconds, the universe grew from s_________ than a single atom to b_________ than a galaxy.
2. What two particles were formed after the Big Bang?
3. What is the "cosmic egg"?
4. Some scientists have a theory about the possible end of the Universe. What is the name of this theory?
