SCIENCE 1
Planets & solar system
Science 2
Citie& Countries
World Languages
100

This gas do plants absorb from the atmosphere        

carbon dioxide

100

This galaxy contains our Solar System.

The Milky Way Galaxy

100

This process allows plants to make their own food

photosynthesis

100

This country has the most islands in the world, numbering over 200,000.

Sweden

100

This is the most widely spoken language in the world by number of native speakers.
 

Mondarin Chinese

200

This is the chemical symbol for gold.            

AU

200

This is the closest star to Earth

Sun

200

This is the pH value of pure water

7

200

This European country has three official languages: German, French, and Italian.
 

Switzerland

200

This Germanic language is the most spoken language in the United States.
 

English

300

This is the chemical symbol for oxygen.      

O

300

This planet has the most extensive ring system.

Saturn

300

This element has the atomic number 1

Hydrogen

300

This Southeast Asian country is made up of more than 17,000 islands.
 

Indonesia

300

This typThis language is an official language of both India and Pakistan and is written in Devanagari and Perso-Arabic scripts.

Hindi/Urdu

400

This molecule carries genetic information      

DNA

(1940s: abbreviation of deoxyribonucleic acid.)

400

How old is the solar system

Roughly 4.6 billion years old

400

These tiny structures inside cells produce energy and are known as the “powerhouse of the cell.”      

Mitochondria

400

This country has the longest coastline in the world.
 

Canada

400

This language is the most widely spoken native language in Africa.
 

Swahili

500

This subatomic particle has a negative charge        

ELECTRON

500

This telescope was launched into space in 1990 and revolutionized astronomy.

The Hubble Space Telescope

500

This ancient language was spoken in Mesopotamia and is considered the world’s first written language.
 

Sumerian

500

This country has the highest number of official languages, with 11 recognized in its constitution.
 

South Africa

500

This extinct language was used by the Romans and is the ancestor of Italian, French, Spanish, Portuguese, and Romanian.
 

Latin

M
e
n
u