Mutations, Populations, and Evidence Worksheet
📝 Worksheet hard ⏱️ 20 minutes 8 problems
Mutations, Populations, and Evidence Worksheet
Grade 7 Science LearnCrux.com
Name:
Date:
Directions
- Fill in each blank carefully.
- Circle or mark the best answer for each multiple-choice question.
- Match each prompt to the best option before writing your answer.
- Use the larger space to show your thinking on word problems.
1. A change in genetic information is a __.
2. Which statement is true about mutations?
3. Match the evidence to the best claim: one trait becomes more common across generations
Match with:
Answer:
4. Natural selection explains why some traits become more common in a __ over time.
5. Why is it incorrect to say one individual evolves during its own life?
6. Which evidence would best support an explanation about trait frequency change?
7. A population-level explanation should connect variation, environment, and __.
8. Why do scientists use graphs or data tables when explaining natural selection?
📋 Teacher Answer Key
1. mutation
2. A mutation can be harmful, helpful, or neutral.
3. population change over time
4. population
5. Natural selection describes population-level change across generations, not one organism changing inherited traits on purpose
6. data from several generations
7. reproduction
8. They help show how trait patterns change across generations instead of relying on guesses or one-time observations