Arrange these galaxies in order of distance from earth, from closest (1) to farthest (4).
Arrange these galaxies in order of distance from earth, from closest (1) to farthest (4).
Galaxy A
Galaxy B
Galaxy C
Galaxy D
1 - Closest
2
3
4 - Farthest
Nuclear fusion occurs when __________________.
Nuclear fission occurs when __________________.
What happens to the nucleus of an atom that undergoes alpha decay?
An isotope is shown below. Which of the following changes would result in the isotope osmium-186?
Fill in the missing isotope symbol. You can type or draw.
Describe how the carbon-14 nuclei changed in this nuclear decay.
Hydrogen-1 fuses with hydrogen-2 to create a new nucleus. Gamma radiation is released in the process. Write the balanced nuclear reaction below. You can type or draw.
Hydrogen-1 fuses with with nitrogen-15. A new nucleus is made and an alpha particle is released. Write the balanced nuclear reaction below.
Radon-222 undergoes alpha decay. Write the balanced nuclear reaction. You can type or draw.
What is a stellar nebula?
Describe how a stellar nebula becomes a main sequence star.
What will our sun become in the next stage of its life?
Which star(s) has/have supernova explosions? Select all that apply.
Describe what happens when the hydrogen fuel runs out in a main sequence star?
Arrange these galaxies in order of distance from earth, from closest (1) to farthest (4).
Galaxy A
Galaxy B
Galaxy C
Galaxy D
1 - Closest
2
3
4 - Farthest
Which element(s) is/are in this star? Select all that apply.
