- Activity 4 The Expanding Universe Directions Write True On The Space Provided Before The Number If The Statement Is Co 1 (168.82 KiB) Viewed 9 times
ACTIVITY 4: The Expanding Universe Directions: Write TRUE on the space provided before the number if the statement is correct. Otherwise, change the underlined word or words to make the statement correct. 1. The Big Bang theory was developed to explain how the universe began. 2. Scientists think that the universe began about 14 million years ago. 3. The first matter to form in the universe consisted of protons. neutrons, and electrons. were created prote 4. Hydrogen atoms were created from protons and neutrons. Then nuclear fission reactions created helium atoms. RICH T OF ED 5. Gravity caused the atoms to collapse onto one another to form stars and galaxies and eventually, other matter. B 6. The faint microwave glow detected by scientists is the left-over energy from the Big Bang. ON 7. As the universe expands, it became more dense and hotter. ( 8. The size of the galaxy changes as the universe expands. 9. Edwin Hubble discovered that the farther away the galaxy, the faster it is moving away from us. 10. Blue shifting is one of the pieces of evidence that the universe is expanding. ACY XCELENCE U