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;
10 Cards in this Set
- Front
- Back
What makes up the lithosphere?
|
The crust and upper mantle
The tectonic plates |
|
What makes up the hydrosphere?
|
Not a complete sphere, but the hydrsphere consists of the oceans
|
|
What makes up the biosphere?
|
The sphere of life encasing the planet. Living things in the sea, rivers, lakes, the soil and large areas of land
|
|
What makes up the atmosphere?
|
A layer of air wrapped around Earth
|
|
The rocks of the lithosphere are made up mainly of ....?
Which are compounds of ....and..... |
Silicates
Silicon and Oxygen |
|
How does carbon exist in:
The lithosphere? The atmosphere? The biosphere? |
Lithosphere - carbon combines with hydrogen to form hydrocarbons in crude oil. Calcium carbonate of chalk and limestone
Atmosphere - Carbon dioxide gas Biosphere - Most of the chemicals that make up living things are compounds of carbon with other elements |
|
What is the composition of chemicals in the atmosphere?
|
78% Nitrogen (N2)
21% Oxygen (O2) 1% Argon (Ar) 0.03% Carbon dioxide (CO2) Small amounts of water vapour |
|
Do the chemicals in the atmosphere have low or high melting and boiling points?
|
Low
|
|
How do non-metal atoms combine to form molecules?
|
Sharing electrons
|
|
The molecule of hydrogen is held together by?
This is a ...... bond? |
Electrostatic attraction
Single |