Organise these statements into chronological order. Then either:
• Create a story board by drawing a picture
above each one to explain what is happening.
• OR if pictures are not your thing, write the
statements in the correct order in your book
Carbon dioxide levels rise due to
pollution Global warming starts
- weather patterns are
affected
Life begins in the oceans. Simple plants
called cyanobacteria use carbon dioxide
in photosynthesis. Ozone forms and
oxygen levels start to rise
Earth is a ball of molten rock,
No atmosphere is present
Land plants start to appear
Oxygen levels rise rapidly
Earth starts to cool down. Water
vapour begins to condense and oceans
are formed
Earth is still too hot for any
surface water Its surface
is covered in volcanoes
Animals evolve due to the
increase in oxygen
Balance between carbon dioxide
and oxygen is achieved