Origin of Life Worksheet
Explore the scientific theories and experiments related to the origin of life on Earth for Grade 9 science students.
Includes
Standards
Topics
Origin of Life Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. This worksheet covers key concepts related to the origin of life on Earth.
1. Which of the following gases was NOT abundant in Earth's early atmosphere according to the Oparin-Haldane hypothesis?
Methane
Ammonia
Oxygen
Water vapor
2. The Miller-Urey experiment demonstrated that:
Life originated from outer space.
Complex cells can form spontaneously.
Organic molecules can form from inorganic precursors.
DNA was the first genetic material.
3. The theory of suggests that life arose from non-living matter through natural processes.
4. The first forms of life on Earth were likely organisms.
5. Briefly describe the concept of the 'RNA world' hypothesis.
6. Photosynthesis was the primary metabolic process of the earliest life forms on Earth.
True
False
7. Deep-sea hydrothermal vents are considered a possible site for the origin of life.
True
False
Use the words below to complete the sentences.
8. The idea that life on Earth originated from microorganisms or biochemical precursors from outer space is called .
9. The early Earth oceans, rich in organic compounds, are often referred to as the .