The Earth Flashcards
What is recycling?
Collecting and processing materials that have been used so that the materials can be used again
Name two processes that add carbon dioxide to the atmosphere
Respiration, combustion of fossil fuels
Name two processes that remove carbon dioxide from the atmosphere
Photosynthesis and dissolving into oceans
Basalt is an example of an…
Igneous rock
What does the rock cycle show?
How rocks change, and how their materials are recycled over millions of years
State some examples of sedimentary rocks
Sandstone and limestone
What is uplift?
The earths crust moves constantly. When continents collide, huge forces inside the earth push rocks upwards, and mountains can form. This is uplift.
Give two examples of metamorphic rocks
Marble and slate
Humans have a huge impact on climate change due to…
Deforestation, agriculture and burning fossil fuels for electricity
State the 4 most common substances in the earths atmosphere
Argon, carbon dioxide, oxygen and nitrogen
Name the 3 types of weathering
Physical, chemical and biological
State the 4 layers of the earth
Crust, mantle, outer core, inner core
Extra carbon dioxide in the atmosphere has caused an increase in the average global temperature, this is called…
Global warming
Metamorphic rocks are formed when…
Heat, high pressure, or both change an existing rock
What is the carbon cycle?
It shows how carbon dioxide enters and leaves the atmosphere
State some example of carbon stores
Atmosphere, oceans, sedimentary rocks, fossil fuels, plants and animals, soils
List the main steps involved in how sedimentary rocks are formed
Weathering, erosion, transport, deposition, compaction and cementation
When igneous rocks form, how can the rate at which the magma cools affect crystal size?
The slower it cools, the larger the crystals are and the quicker, the smaller
What is the greenhouse affect?
Carbon dioxide in the atmosphere absorbs some of the radiation produced by the earth so it does not go back into space. This keeps the earth warmer than it would be if the radiation were to go back into space. This is the greenhouse effect. Carbon dioxide is a greenhouse gas.
Write the word equation for respiration?
Carbon dioxide + water —> glucose + oxygen
