Từ vựng & Bài mẫu IELTS Speaking topic Science part 1, 2, 3

Science (Khoa học) luôn là một trong những chủ đề khó nhằn nhất trong bài thi IELTS Speaking. Với lượng thuật ngữ chuyên ngành rộng và đòi hỏi tư duy logic cao, nhiều thí sinh rất dễ rơi vào trạng thái “bí từ” hoặc diễn đạt thiếu tự nhiên.

Để giúp các bạn tự tin làm chủ chủ đề này và bứt phá lên band điểm cao, cô Nguyễn Thu Hà (Giáo viên IELTS 8.5 tại Trung tâm Ngoại ngữ ECE) đã biên soạn bộ tài liệu chuyên sâu dưới đây. Bài viết sẽ cung cấp cho bạn từ vựng, các idiom tự nhiên và trọn bộ bài mẫu chi tiết cho cả 3 phần thi kỹ năng nói.

Từ vựng & Cấu trúc hay cho topic Science

Gợi ý các từ vựng chuyên ngành (Collocations & Topic Vocabulary)

Các thành ngữ & Cụm động từ (Idioms & Phrasal Verbs)

Bài mẫu IELTS Speaking Part 1 topic Science

Question 1: Do you like science?

“Without a doubt! I’ve always been a bit of a science enthusiast. To be honest, I love geeking out over space exploration and cosmic phenomena. I find the way science explains the inner workings of our universe absolutely fascinating, as it continuously pushes the boundaries of human knowledge.”

Question 2: What science subject did you like the most at school?

“If memory serves, I was deeply captivated by Biology, particularly genetics. The concept of DNA and how tiny molecular chains dictate our entire physical existence just blew my mind. Unlike chemistry, which sometimes felt a bit dry with all the equations, biology felt tangible and alive.”

Question 3: Is science popular in your country?

“Yes, absolutely. In Vietnam, STEM subjects are highly sought-after fields of study. Parents generally encourage their kids to pursue science-related careers because they are perceived as stable, lucrative, and highly beneficial for our country’s ongoing technological paradigm shift.”

Question 4: Do you think children should learn science at school?

“Undeniably. Introducing children to science at an early age is vital because it fosters critical thinking and a healthy sense of curiosity. It’s not just about memorizing facts; it’s about learning how to formulate questions, test hypotheses, and make sense of the world based on empirical evidence rather than mere superstition.”

Question 5: How often do you read science-related news or watch science documentaries?

“Quite regularly, actually. I’m a big fan of channels like Kurzgesagt or National Geographic on YouTube. Whenever a new scientific breakthrough is announced—like advancements in nuclear fusion or genetic engineering—I make sure to read up on it. It’s a great way to stay informed about where our world is heading.”

Question 6: Do you find science classes difficult?

“Well, it can be a double-edged sword. Some advanced concepts in physics, like quantum mechanics, can definitely baffle me. But on the flip side, if you have an engaging teacher who doesn’t just blind you with science but explains things using everyday analogies, it’s not brain surgery at all!”

Question 7: Have you ever visited a science museum?

“Yes, a couple of times. I vividly remember visiting a state-of-the-art science center during a trip abroad. What blew me away was the interactive exhibitions where you could simulate natural disasters or run mini laboratory experiments yourself. It made abstract scientific theories feel incredibly real and exciting.”

Question 8: Do you think science can solve all our problems in the future?

“While I am a firm believer in the power of scientific innovation, I don’t think it’s a silver bullet for everything. Science can provide us with cutting-edge technology to combat climate change or cure diseases, but solving human conflicts, social inequality, and ethical dilemmas requires empathy and political will, which science alone cannot engineer.”

Bài mẫu IELTS Speaking Part 2 topic Science

Cue Card 1: Describe a scientific area that you are interested in (e.g., medicine, space, physics).

You should say:

• What area it is

• How you first became interested in it

• What you know about this scientific area

• And explain why you are interested in this area.

“Today, I’d like to talk about a branch of science that has captured my imagination since childhood: astrophysics and space exploration. This field focuses on understanding the birth, evolution, and ultimate fate of celestial bodies and the universe itself.

I first stumbled upon this fascinating subject when I was around ten years old. My father bought me a book about the solar system, filled with stunning photographs of distant nebulae and distant galaxies taken by the Hubble Space Telescope. I remember being utterly spellbound, staring at those images for hours. That spark of curiosity was further fueled by watching sci-fi movies and space documentaries narrated by famous astrophysicists.

From what I’ve gathered over the years, astrophysics is currently undergoing a massive technological paradigm shift. With the deployment of state-of-the-art equipment like the James Webb Space Telescope, scientists are now able to peer back in time to the very infancy of our universe. We are gaining invaluable insights into dark matter, black holes, and the atmospheric composition of exoplanets, which might potentially harbor alien life.

What draws me to this area is the sheer scale and philosophical weight of it. In our mundane, day-to-day lives, we easily get bogged down by trivial matters. However, contemplating the vastness of the cosmos puts everything into perspective. It reminds us of how precious and fragile our little blue planet is. Furthermore, I genuinely believe that humanity’s long-term survival depends on us pushing the boundaries of our knowledge and eventually becoming a multi-planetary species. It’s a field that perfectly combines rigorous empirical evidence with ultimate human wonder.”

Phân tích cấu trúc ăn điểm:

• Captured my imagination: Thu hút trí tưởng tượng.

• Utterly spellbound: Hoàn toàn bị mê hoặc.

• Peer back in time: Nhìn ngược thời gian.

• Puts everything into perspective: Giúp nhìn nhận mọi việc một cách đúng bản chất / khách quan hơn.

Cue Card 2: Describe an important invention (e.g., a science-based invention) that changed the world.

You should say:

• What the invention is

• How it works

• How it has influenced human history

• And explain why you think it is so important.

“If I were to highlight a single scientific invention that has completely revolutionized human civilization, it would undoubtedly be the development of CRISPR-Cas9 gene-editing technology. This is a cutting-edge tool in molecular biology that allows scientists to make highly precise changes to the DNA of living organisms.

To explain it in layman’s terms, CRISPR works like a molecular pair of scissors. It can be programmed to target a specific sequence of genetic code within a cell. Once it finds the target, it snips the DNA, allowing researchers to either disable a faulty gene or insert a healthy one to take its place. It has essentially turned the incredibly complex task of modifying genomes into something that scientists have down to a science.

The implications of this scientific breakthrough for human history are profound. For decades, genetic diseases like sickle cell anemia or cystic fibrosis were considered lifelong, incurable sentences. CRISPR is completely changing that narrative by offering the potential to cure these ailments at their genetic roots. In agriculture, it’s being utilized to engineer crops that are highly resilient to extreme weather conditions, which is crucial for global food security in the face of climate change.

I believe this invention is of paramount importance because it represents a quantum leap in our relationship with nature. For the first time, instead of just observing or selectively breeding organisms, we have the power to actively rewrite the code of life itself. While this power comes with immense ethical responsibilities—such as avoiding the slippery slope of ‘designer babies’—the sheer potential of CRISPR to alleviate human suffering and tackle environmental crises makes it one of the most powerful and transformative tools ever devised by humankind.”

Phân tích cấu trúc ăn điểm:

• In layman’s terms: Nói một cách dễ hiểu cho người không chuyên.

• Have something down to a science: Làm chuẩn xác, thuần thục.

• Changing that narrative: Thay đổi hoàn toàn định kiến / câu chuyện trước đó.

• Alleviate human suffering: Giảm thiểu đau khổ cho loài người.

Bài mẫu IELTS Speaking Part 3 topic Science

Question 1: How has science changed the way people live compared to the past?

“Science has fundamentally overhauled every facet of human existence. In the past, people were at the mercy of infectious diseases and limited by geographic isolation. Today, thanks to scientific breakthroughs in vaccinology and the development of high-speed telecommunications, we have significantly extended life expectancy and created a globalized economy. The integration of automation and artificial intelligence in daily tasks has freed us from backbreaking labor, allowing for a standard of living that would have seemed like sheer sorcery to our ancestors.”

Question 2: Why do some people distrust scientific findings?

“I believe this skepticism stems from a combination of scientific illiteracy and the rampant spread of misinformation online. Many scientific studies are highly complex, and when researchers try to explain them, they sometimes blind the public with science or use jargon that is hard to digest. This creates a disconnect. Additionally, science is an iterative process where theories are constantly updated based on new empirical evidence. To a layperson, this self-correcting nature can be misinterpreted as inconsistency or untrustworthiness.”

Question 3: Should governments invest more money in space exploration or ocean exploration?

“This is a classic dilemma, but I am inclined to argue that we should strike a balance, leaning slightly towards ocean exploration in the short term. While space travel represents our long-term survival and pushes the very boundaries of human curiosity, our oceans remain largely uncharted territory right on our doorstep. Deep-sea research could yield immediate, tangible benefits, such as discovering new marine species with medicinal properties or finding sustainable energy solutions. Governments should avoid prioritizing cosmic grandeur at the expense of solving pressing ecological issues in our oceans.”

Question 4: Do you think science can sometimes be dangerous?

“Undoubtedly. Science is a neutral tool, but its application can be a double-edged sword. Historical precedents, such as the weaponization of nuclear physics during World War II or the rise of chemical warfare, demonstrate that scientific progress without ethical guardrails can lead to catastrophic devastation. Today, the rapid advancement of unregulated artificial intelligence and unchecked genetic engineering poses existential risks. Without rigorous ethical frameworks, our own creations could easily slip out of our control.”

Question 5: What is the most important science subject for students to learn nowadays?

“While physics and chemistry are foundational, I would argue that Computer Science has become the most critical discipline in the contemporary world. We are living in the dawn of the Fourth Industrial Revolution, where algorithms, big data, and machine learning govern global infrastructure. Understanding how computer systems operate is no longer just a specialized skill; it is a fundamental literacy required to navigate and shape a digitally dominated society.”

Question 6: Why do some students find science subjects boring at school?

“The culprit usually lies in the pedagogy rather than the subject matter itself. Science is often taught as a dry compilation of equations, laws, and facts to be memorized for standardized testing. When students are forced to rote-learn formulas without understanding their practical real-world applications, they quickly lose interest. However, if schools shift towards a more hands-on, experiment-based curriculum where students can physically test hypotheses, science instantly becomes alive and engaging.”

Question 7: How can we encourage more girls to pursue careers in science?

“To dismantle the gender disparity in STEM fields, we must address both cultural stereotypes and structural barriers. Firstly, we need to showcase female scientific role models in media and school textbooks to combat the outdated notion that science is a male-dominated domain. Secondly, academic institutions and corporations should actively offer mentorship programs and targeted scholarships for young women. Fostering an inclusive environment from early childhood is key to ensuring girls feel confident to pursue their scientific passions.”

Question 8: Do you think traditional remedies are scientific?

“I would say many traditional remedies are rooted in empirical observation, even if they lack the formalized language of modern science. For centuries, indigenous cultures used specific herbs because they observed that they worked—which, in essence, is a rudimentary form of testing a hypothesis. Today, ethnopharmacology—the scientific study of traditional medicine—frequently isolates active chemical compounds from these herbs to develop modern pharmaceuticals. So, while they might not have been developed in modern labs, they often contain genuine scientific validity.”

Question 9: What role does science play in environmental conservation?

“Science acts as both the diagnostic tool and the cure for environmental crises. It is through ecological science and climate modeling that we are able to measure global warming, track biodiversity loss, and understand the catastrophic impact of human activity on ecosystems. On the flip side, environmental science also provides the solutions, whether through developing renewable energy grids, designing biodegradable materials, or creating genetic interventions to save endangered species from extinction.”

Question 10: Will artificial intelligence replace human scientists in the future?

“I believe AI will act as a powerful catalyst and collaborator rather than a complete replacement for human scientists. AI is peerless when it comes to processing gargantuan datasets, spotting subtle patterns, and simulating molecular structures at lightning speed. However, scientific breakthrough is not just about raw computation; it requires creative intuition, lateral thinking, and the ability to ask the right questions—qualities that are uniquely human. The future of science lies in the synergy between human ingenuity and artificial computing power.”

Làm chủ chủ đề Science không chỉ dừng lại ở việc học thuộc lòng từ vựng mà là cách bạn rèn luyện tư duy lập luận logic và khả năng liên hệ thực tế. Hy vọng bộ tài liệu toàn diện này từ cô Nguyễn Thu Hà – Giáo viên tại ECE sẽ là bệ phóng giúp bạn nâng band điểm nói một cách bứt phá nhất.

Nếu bạn đang tìm kiếm một lộ trình học IELTS cá nhân hóa, định hướng tư duy sâu rộng chuẩn quốc tế, hãy liên hệ ngay với Trung tâm Ngoại ngữ ECE để được kiểm tra trình độ và tư vấn lớp học phù hợp nhất nhé!

Đoàn Nương

Tôi là Đoàn Nương - Giám đốc trung tâm ngoại ngữ ECE. Tôi hiện đang là giảng viên của khoa ngôn ngữ các nước nói tiếng Anh - Trường Đại Học Quốc Gia Hà Nội. Tôi đã có 19 năm kinh nghiệm giảng dạy IELTS và 15 năm là giảng viên Đại Học. Tôi mong muốn đưa ECE trở thành trung tâm ngoại ngữ cho tất cả mọi người, mang tới cho học viên môi trường học tập tiếng Anh chuyên nghiệp và hiệu quả.