WorksheetsEvolution
Total questions: 20
Worksheet time: 12mins
In which eon were prokaryotes first discovered?
Headon Eon
Proteriozoic Eon
Palaeozoic
Archean Eon
How old is Earth?
4.5 billion years ago
4.5 million years ago
4.6 billion years ago
4.6 million years ago
13.7 billion
Hydrogen was the first element to be formed after the big bang, because...
It is the simplest element
the temperature at that time was just right for hydrogen
It is used as fuel for stars
it was chosen completely at random
350,000 years after the big bang, gravity pulled all the hydrogen atoms into big balls of gas that ignited under pressure, creating the first __________.
Stars
Planets
Amoebas
Light
Which types of organisms developed first due to the early environmental conditions on Earth?
prokaryotic and aerobic
prokaryotic and anaerobic
eukaryotic and aerobic
eukaryotic and anaerobic
Which of the following was presumably absent from Earth Early atmosphere based on the conditions present at the time?
Carbon Dioxide (CO2)
Methane (CH4)
Oxygen (O2)
Water(H2O)
Cyanide (CN-)
These scientists proved that organic molecules formed from inorganic molecules present in the Earth’s early atmosphere when given energy from lightening.
Lennon and McCartney
Einstein and Newton
Watson and Crick
Miller and Urey
What was formed in the Miller-Urey experiments?
amino acids
proteins
living cells
DNA
Name the gases used in the Urey miller experiment
(a)
The idea that Earth's early oceans had organic molecules that became the first life is called
Primordial soup
Urey - miller experiment
Bubble hypothesis
Radioactive dating theory
Which eon is known for the formation of the Earth’s Moon, following a colossal impact event, and is characterized by the planet's initial cooling and the establishment of a solid crust?
Hadean Eon
Archean Eon
Proterozoic Eon
Phanerozoic Eon
