Understanding Evolution & Natural Selection
Science
Year 7
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A worksheet covering Evolution & Natural Selection for Year 7 students.
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Understanding Evolution & Natural Selection
Subject: ScienceGrade: Year 7
Name:
Date:
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Untitled Worksheet
Grade Year 7
A
Introduction
Read the following introduction to Evolution & Natural Selection.
B
Questions
Answer all questions. Show your working where appropriate.
1.
What is evolution?
[2 marks]2.
Who proposed the theory of natural selection?
[1 mark]3.
Define 'natural selection'.
[2 marks]4.
Multiple choice question: Which of the following is an example of an adaptation?
[1 mark]AThicker fur in colder climates
BLonger ears in elephants
CSmaller leaves in desert plants
DShorter tails in monkeys
5.
True or False: Evolution is a process that happens over a few years.
[1 mark]6.
Explain how natural selection can lead to evolution.
[6 marks]7.
Multiple choice question: Which scientist is known for his study of finches in the Galapagos Islands?
[1 mark]ACharles Darwin
BGregor Mendel
CAlfred Wallace
DJean-Baptiste Lamarck
8.
Match the following terms to their definitions:
[3 marks]1. Mutation
2. Adaptation
3. Speciation
AThe formation of new and distinct species in the course of evolution
BA change in the DNA sequence
CA trait that helps an organism survive and reproduce
9.
Order the steps of natural selection:
[2 marks]1
2
3
4
5
10.
Multiple choice question: What is the primary driving force behind natural selection?
[1 mark]ARandom chance
BEnvironmental pressures
CGenetic drift
DArtificial selection
11.
True or False: All mutations lead to beneficial adaptations.
[1 mark]12.
Fill in the blank: The process by which different species evolve from a common ancestor is called ___.
[1 mark]13.
Calculate the probability of a trait being passed on using the formula: Probability = (Number of successful offspring / Total offspring). If 4 out of 10 offspring survive, what is the probability?
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Details
- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet