Understanding Cancer
This worksheet covers fundamental concepts of cancer, including its causes, characteristics, and prevention methods, suitable for Grade 9 science students.
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Understanding Cancer
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. What is the primary characteristic of cancer cells?
They grow and divide uncontrollably.
They are always benign.
They only affect elderly individuals.
They are normal, healthy cells.
2. Which of the following is NOT a known risk factor for developing cancer?
Exposure to UV radiation
Genetic predisposition
Regular exercise
Smoking
3. Cancer is a disease caused by an uncontrolled division of in a part of the body.
4. A mass of abnormal cells that forms a lump is called a .
5. Briefly explain the difference between a benign tumor and a malignant tumor.
6. All tumors are cancerous.
True
False
7. Early detection of cancer often improves treatment outcomes.
True
False
Use the words below to complete the sentences.
8. Substances that can cause cancer are known as .
9. The process by which cancer cells spread to other parts of the body is called .
10. Observe the image below of a cancer cell. List two visible differences between a normal cell and this cancer cell.
