Để chuẩn bị cho kỳ thi TOEFL, bổ sung từ vựng là điều thí sinh cần làm thật tốt. Dưới đây là một số từ vựng chủ đề Science thường gặp trong bài thi TOEFL:

1. homeostasis

• Meaning: The ability of an organism or environment to maintain internal stability in response to external changes.

• Example: The human body regulates its temperature through homeostasis, maintaining a stable internal environment despite changes in external temperatures.

2. inertia

• Meaning: The resistance of any physical object to any change in its velocity.

• Example: According to Newton’s first law of motion, an object in motion tends to stay in motion due to inertia, unless acted upon by an external force.

3. metabolism

• Meaning: The chemical processes that occur within a living organism in order to maintain life.

• Example: A person’s metabolism slows down with age, making it harder to burn calories as efficiently.

4. osmosis

• Meaning: The movement of water molecules through a semi-permeable membrane from a region of low solute concentration to a region of high solute concentration.

• Example: Cells absorb water through osmosis, which is essential for maintaining cellular hydration.

5. photosynthesis

• Meaning: The process by which green plants and some other organisms use sunlight to synthesize food from carbon dioxide and water.

• Example: Through photosynthesis, plants convert sunlight into chemical energy, producing oxygen as a byproduct.

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