History of Life on Earth
Explore the history of life on Earth, from early organisms to the age of dinosaurs and the emergence of mammals, with this engaging Grade 6 science worksheet.
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History of Life on Earth
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Read each question carefully and answer to the best of your ability. Good luck!
1. Which of the following is the best definition of a fossil?
A living organism found in rock.
The preserved remains or traces of an organism from the past.
A type of rock that looks like an animal.
A modern animal that has been frozen.
2. Which era is known as the 'Age of Dinosaurs'?
Paleozoic Era
Cenozoic Era
Mesozoic Era
Precambrian Era
3. The first forms of life on Earth were simple, single-celled .
4. Scientists use the record to understand the history of life on Earth.
5. An organism is said to be when all of its kind have died out.
6. Dinosaurs lived during the Cenozoic Era.
True
False
7. The Earth is approximately 4.5 billion years old.
True
False
8. What can scientists learn about ancient organisms by studying the fossil shown below?
9. Describe one major event that led to significant changes in life on Earth.