Origins
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| When was our solar system formed? | about 4.5 billion years ago
🗑
|
||||
| What sort of state was our solar system like in the beginning? | gassy
🗑
|
||||
| Earth is rocky/solid making it a what sort of planet? | Terrestrial Planet
🗑
|
||||
| Gravity pulled what two elements inward to form the present day Earth's core? | iron and nickel
🗑
|
||||
| Lighter elements rose to the surface forming what two parts of the Earth? | the mantle and crust
🗑
|
||||
| The Earth's core remains partially molten through what? | Radioactive Decay
🗑
|
||||
| Early atmosphere was composed mostly of what 8 things? | water vapor. nitrogen gas. carbon dioxide. methane. carbon monoxide. sulfur dioxide. HCl. ammonia.
🗑
|
||||
| What elements was not in the early atmosphere? | oxygen
🗑
|
||||
| What is a major determinant of the salinity of the ocean? | chlorine
🗑
|
||||
| The ocean is estimated to how many years old? | about 3.8 billion years old
🗑
|
||||
| What two conditions are critical to development of life? | lack of oxygen and the presence of water
🗑
|
||||
| Cells are composed of proteins, carbohydrates, lipids, nucleic acids, etc that are assembled from using what from the environment? | energy
🗑
|
||||
| The two scientists that created the early atmosphere model where? | Miller, Urey
🗑
|
||||
| Earliest forms of life on Earth arose when? | about 3.8 billion years ago
🗑
|
||||
| Early cells were? | prokaryotic, probably just membrane bags of self-replicating RNA, DNA, other molecules.
🗑
|
||||
| Populations diverged in two major directions... | Archaea and Eukarya (Eukaryotes), Bacteria
🗑
|
||||
| Percentages of present-day atmosphere... | 78% Nitrogen, 21% Oxygen, <1% Argon, <0.03% Carbon Dioxide
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
rachelaurenk
Popular Marine Sci Tech 1 sets