Hydrosphere
Geosphere
Atmosphere
Biosphere
Random questions
100

Name the type of water which contains a moderate salt content

Brackish water

100

This is the thinnest layer of the Earth

Crust (oceanic crust)

100

Which is the most abundant component of air and what is the approximate percentage

Nitrogen: 78% (accept any value between 70-85%)

100

This is the name of the link that joins together different molecules of water

Hydrogen bond

100

Who is the best teacher in el Valle?

Joja! (For sure!)

200

Seas and oceans move and change all the time in a variety of ways. Which are the three movements of these bodies of water?

Waves, tides and currents

200

Which are the main two components of the Earth's core

Nickel and iron

200

In which layer of the atmosphere do most of the meteorological phenomena occur? Which position does it take up from the Earh?

Troposphere. The closest layer to the Earth (first position in distance from the Earth)

200

Name three organisms that are autotrophs

Plants, algae and bacteria

200

How many students are there in the 5 groups of 1ÂșESO?

145

300

Name 6 bodies of surface water...

Any of these: River, delta, marh, estuary, wetland, lake and lagoon

300

Give three characteristics of a mineral

Any of these: Natural, inorganic, solid, specifical chemical composition, ordered atomic arrangement

300

Outermost layer of the Earth and main components

Exosphere: Mainly composed of Hydrogen and Helium

300

Another name to refer to changes in the environment

Stimuli

300

Which class do you have on Wednesdays, at 11:15?

English

400

What is the meaning of water table?

It is the upper level of an aquifer (groundwater)

400

Which are the three types of magmatic rocks?

Intrusive (plutonic), subvolcanic and volcanic (extrusive)

400

According to atmosphere, what is the meaning of PM2,5?

Particulate matter with a diameter of less than 2.5 micrometers. They are a type of atmospheric pollution

400
Define organic matter and give two examples of molecules which are organic

They are molecules that contain carbon and hydrogen. Examples: Glucids (sugars), lipids (fats), proteins, nucleic acids, CH4...

400

Where does Kevin come from?

Dallas (Texas)

500

1. What is the name of the rocky debris which are formed while glaciers move downhill?

2. This is the name of the link that joins together different molecules of water

1. Moraines

2. Hydrogen bonds

(Both answers are required)

500

After weathering, rocks are broken down into small fragments. These sediments are eroded: transported and deposited in sedimentary basins. What is the name of the process by which these sediments compact into solid rock?

Lithification

500

The upper limit of the atmosphere extends to an altitude of approximately...

10 000 km

500

Which is the formula of photosynthesis? What else is needed appart from inorganic matter?

CO2 + H2O --> O2 + Glucose 

Also sunlight is needed

500

How old is el Valle Sanchinarro?

14 years old. It will be 15 this year :)