What has keys but can’t open locks?
Piano
Which element is liquid at room temperature
Mercury
The process of energy production in organisms?
Cellular respiration
This is the largest ocean on Earth.
Pacific Ocean
Bingo! No question this time! Lucky team :)
Nothing
These are needed for a successful collision.
collisions with enough energy and correct orientation
This war (1914–1918) was known as “The Great War.
World war I
This country has the largest population in the world (as of recent years).
India
I speak without a mouth and hear without ears. What am I?
Echo
Name three ways to increase the reaction speed.
heating up, use catalysts, increase the concentration
The variety of living species in an ecosystem is called this.
Biodiversity
This famous explorer reached the Americas in 1492.
Christopher Columbus
This European river flows through cities like Vienna, Budapest, and Belgrade.
Danube River
The more you take, the more you leave behind. What are they?
Footsteps
name of the compound with a 3-carbon chain and one Cl on carbon 2
2-chloropropane
Competition among the same organisms is.....
Intraspecific competition
An event in 1989 symbolised the end of the Cold War divide in Europe.
Falling Berlin Wall.
This country’s flag features a Union Jack in the corner and stars representing the Southern Cross constellation.
Australia
I have hands but cannot clap. What am I?
Clock
What is the sum of the coefficients for the balanced combustion of butane?
C4H10 + O2 ====> CO2 +H2O
12
One kind of water pollution is caused by fertilizers being washed into the water body.
Eutrophication
This conflict between the United States and the Soviet Union was characterized by political tension, arms races, and no direct fighting.
Cold War